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data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Agricultural_soil_tests" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Agricultural_soil_tests"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Agricultural soil tests</span> </div> </a> <button aria-controls="toc-Agricultural_soil_tests-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Agricultural soil tests subsection</span> </button> <ul id="toc-Agricultural_soil_tests-sublist" class="vector-toc-list"> <li id="toc-Geographic_distribution_of_samples_for_precision_agriculture" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Geographic_distribution_of_samples_for_precision_agriculture"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Geographic distribution of samples for precision agriculture</span> </div> </a> <ul id="toc-Geographic_distribution_of_samples_for_precision_agriculture-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Storage,_handling,_and_moving" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Storage,_handling,_and_moving"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Storage, handling, and moving</span> </div> </a> <ul id="toc-Storage,_handling,_and_moving-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Lab_testing" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Lab_testing"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Lab testing</span> </div> </a> <ul id="toc-Lab_testing-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Engineering_soil_testing" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Engineering_soil_testing"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Engineering soil testing</span> </div> </a> <ul id="toc-Engineering_soil_testing-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Soil_contaminants" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Soil_contaminants"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Soil contaminants</span> </div> </a> <ul id="toc-Soil_contaminants-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Soil test</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 13 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-13" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">13 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%81%D8%AD%D8%B5_%D8%A7%D9%84%D8%AA%D8%B1%D8%A8%D8%A9" title="فحص التربة – Arabic" lang="ar" hreflang="ar" data-title="فحص التربة" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Test_de_suelos" title="Test de suelos – Spanish" lang="es" hreflang="es" data-title="Test de suelos" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%86%A0%EC%96%91%EB%B6%84%EC%84%9D" title="토양분석 – Korean" lang="ko" hreflang="ko" data-title="토양분석" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A5%83%E0%A4%A6%E0%A4%BE_%E0%A4%AA%E0%A4%B0%E0%A5%80%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%A3" title="मृदा परीक्षण – Hindi" lang="hi" hreflang="hi" data-title="मृदा परीक्षण" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Analisis_tanah" title="Analisis tanah – Indonesian" lang="id" hreflang="id" data-title="Analisis tanah" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B4%A3%E0%B5%8D%E0%B4%A3%E0%B5%8D_%E0%B4%AA%E0%B4%B0%E0%B4%BF%E0%B4%B6%E0%B5%8B%E0%B4%A7%E0%B4%A8" title="മണ്ണ് പരിശോധന – Malayalam" lang="ml" hreflang="ml" data-title="മണ്ണ് പരിശോധന" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AE%E0%A4%BE%E0%A4%A4%E0%A5%80_%E0%A4%AA%E0%A4%B0%E0%A5%80%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%A3" title="माती परीक्षण – Marathi" lang="mr" hreflang="mr" data-title="माती परीक्षण" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%99%E1%80%BC%E1%80%B1%E1%80%86%E1%80%AE%E1%80%9C%E1%80%BD%E1%80%BE%E1%80%AC%E1%80%85%E1%80%85%E1%80%BA%E1%80%86%E1%80%B1%E1%80%B8%E1%80%99%E1%80%BE%E1%80%AF" title="မြေဆီလွှာစစ်ဆေးမှု – Burmese" lang="my" hreflang="my" data-title="မြေဆီလွှာစစ်ဆေးမှု" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AE%E0%A8%BF%E0%A9%B1%E0%A8%9F%E0%A9%80_%E0%A8%AA%E0%A8%B0%E0%A8%96%E0%A8%BC" title="ਮਿੱਟੀ ਪਰਖ਼ – Punjabi" lang="pa" hreflang="pa" data-title="ਮਿੱਟੀ ਪਰਖ਼" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D9%85%D9%B9%DB%8C_%D9%BE%D8%B1%DA%A9%DA%BE" title="مٹی پرکھ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="مٹی پرکھ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7_%D0%BF%D0%BE%D1%87%D0%B2%D1%8B" title="Анализ почвы – Russian" lang="ru" hreflang="ru" data-title="Анализ почвы" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AE%E0%AE%A3%E0%AF%8D_%E0%AE%AA%E0%AE%B0%E0%AE%BF%E0%AE%9A%E0%AF%8B%E0%AE%A4%E0%AE%A9%E0%AF%88" title="மண் பரிசோதனை – Tamil" lang="ta" hreflang="ta" data-title="மண் பரிசோதனை" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AD%E0%B1%82%E0%B0%B8%E0%B0%BE%E0%B0%B0_%E0%B0%AA%E0%B0%B0%E0%B1%80%E0%B0%95%E0%B1%8D%E0%B0%B7" title="భూసార పరీక్ష – Telugu" lang="te" hreflang="te" data-title="భూసార పరీక్ష" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q877107#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div 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div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For other uses, see <a href="/wiki/Geotechnical_investigation" title="Geotechnical investigation">Geotechnical investigation</a>.</div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:20150319-OC-LSC-0534_(16868799182).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/20150319-OC-LSC-0534_%2816868799182%29.jpg/300px-20150319-OC-LSC-0534_%2816868799182%29.jpg" decoding="async" width="300" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/20150319-OC-LSC-0534_%2816868799182%29.jpg/450px-20150319-OC-LSC-0534_%2816868799182%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/20150319-OC-LSC-0534_%2816868799182%29.jpg/600px-20150319-OC-LSC-0534_%2816868799182%29.jpg 2x" data-file-width="6000" data-file-height="4004" /></a><figcaption>A <a href="/wiki/Horticulture" title="Horticulture">horticulture</a> student taking a soil sample in a garden near <a href="/wiki/Lawrenceville,_Georgia" title="Lawrenceville, Georgia">Lawrenceville, Georgia</a></figcaption></figure> <p>A <b>soil test</b> is a <a href="/wiki/Laboratory" title="Laboratory">laboratory</a> or <a href="/wiki/In_situ" title="In situ">in-situ</a> analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of <a href="/wiki/Plant_nutrients_in_soil" title="Plant nutrients in soil">nutrients</a> in order to provide <a href="/wiki/Fertilizer" title="Fertilizer">fertilizer</a> recommendations in agriculture. In <a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">geotechnical engineering</a>, soil tests can be used to determine the current physical state of the soil, the <a href="/wiki/Seepage" class="mw-redirect" title="Seepage">seepage</a> properties, the <a href="/wiki/Shear_strength_(soil)" title="Shear strength (soil)">shear strength</a> and the <a href="/wiki/Deformation_(engineering)" title="Deformation (engineering)">deformation</a> properties of the soil. Other soil tests may be used in <a href="/wiki/Geochemical" class="mw-redirect" title="Geochemical">geochemical</a> or <a href="/wiki/Ecological" class="mw-redirect" title="Ecological">ecological</a> investigations. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Agricultural_soil_tests">Agricultural soil tests</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=1" title="Edit section: Agricultural soil tests"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/Agriculture" title="Agriculture">agriculture</a>, a <b>soil test</b> commonly refers to the <a href="/wiki/Analysis" title="Analysis">analysis</a> of a <a href="/wiki/Soil" title="Soil">soil</a> sample to determine <a href="/wiki/Nutrient" title="Nutrient">nutrient</a> content, composition, and other characteristics such as the <a href="/wiki/Acidity" class="mw-redirect" title="Acidity">acidity</a> or <a href="/wiki/PH_level" class="mw-redirect" title="PH level">pH level</a>. A soil test can determine <a href="/wiki/Fertility" title="Fertility">fertility</a>, or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive fertility and inhibitions from the presence of non-essential <a href="/wiki/Trace_mineral" class="mw-redirect" title="Trace mineral">trace minerals</a>. The test is used to mimic the function of roots to assimilate minerals. The expected rate of growth is modeled by the <a href="/wiki/Law_of_the_Maximum" class="mw-redirect" title="Law of the Maximum">Law of the Maximum</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Labs, such as those at <a href="/wiki/Iowa_State" class="mw-redirect" title="Iowa State">Iowa State</a> and <a href="/wiki/Colorado_State_University" title="Colorado State University">Colorado State University</a>, recommend that a soil test contains 10-20 sample points for every 40 acres (160,000 m<sup>2</sup>) of field. <a href="/wiki/Tap_water" title="Tap water">Tap water</a> or chemicals can change the composition of the soil, and may need to be tested separately. As soil nutrients vary with depth and soil components change with time, the depth and timing of a sample may also affect results. </p><p>Composite sampling can be performed by combining soil from several locations prior to analysis. This is a common procedure, but should be used judiciously to avoid skewing results. This procedure must be done so that government sampling requirements are met. A reference map should be created to record the location and quantity of field samples in order to properly interpret test results. </p> <div class="mw-heading mw-heading3"><h3 id="Geographic_distribution_of_samples_for_precision_agriculture">Geographic distribution of samples for precision agriculture</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=2" title="Edit section: Geographic distribution of samples for precision agriculture"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/Precision_agriculture" title="Precision agriculture">precision agriculture</a>, soil samples may be geolocated using GPS technology in order to estimate the geospatial distribution of nutrients in the sampled area. The geolocated samples are collected using a distribution and resolution that allows for the estimation of the geospatial variability of the soil area where the crop will be grown. Many different distributions and resolutions are used, depending upon many factors including the goals of the geospatial nutrient analysis and cost of sample collection and analysis.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>For example, in the United States corn and soybean growing regions a grid distribution with a resolution of 2.5 acres per grid (one sample for each 2.5 acre grid) is offered by many precision agriculture soil test service providers. This is generally referred to as grid soil testing. </p> <div class="mw-heading mw-heading3"><h3 id="Storage,_handling,_and_moving"><span id="Storage.2C_handling.2C_and_moving"></span>Storage, handling, and moving</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=3" title="Edit section: Storage, handling, and moving"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Soil chemistry changes over time, as biological and which chemical processes break down or combine compounds over time. These processes change once the soil is removed from its natural ecosystem (flora and fauna that penetrate the sampled area) and environment (temperature, moisture, and solar light/radiation cycles). As a result, the chemical composition analysis accuracy can be improved if the soil is analyzed soon after its extraction — usually within a relative time period of 24 hours. The chemical changes in the soil can be slowed during storage and transportation by freezing it. Air drying can also preserve the soil sample for many months. </p> <div class="mw-heading mw-heading3"><h3 id="Lab_testing">Lab testing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=4" title="Edit section: Lab testing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Soil_test.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Soil_test.JPG/220px-Soil_test.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Soil_test.JPG/330px-Soil_test.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Soil_test.JPG/440px-Soil_test.JPG 2x" data-file-width="2592" data-file-height="1944" /></a><figcaption>Soil testing in progress</figcaption></figure> <p>Soil testing is often performed by commercial labs that offer a variety of tests, targeting groups of compounds and minerals. Laboratory tests often check for plant nutrients in three categories: </p> <ul><li>Major nutrients: <a href="/wiki/Nitrogen" title="Nitrogen">nitrogen</a>, <a href="/wiki/Phosphorus" title="Phosphorus">phosphorus</a>, and <a href="/wiki/Potassium" title="Potassium">potassium</a></li> <li>Secondary nutrients: <a href="/wiki/Sulfur" title="Sulfur">sulfur</a>, <a href="/wiki/Calcium" title="Calcium">calcium</a>, <a href="/wiki/Magnesium" title="Magnesium">magnesium</a></li> <li>Minor nutrients: <a href="/wiki/Iron" title="Iron">iron</a>, <a href="/wiki/Manganese" title="Manganese">manganese</a>, <a href="/wiki/Copper" title="Copper">copper</a>, <a href="/wiki/Zinc" title="Zinc">zinc</a>, <a href="/wiki/Boron" title="Boron">boron</a>, <a href="/wiki/Molybdenum" title="Molybdenum">molybdenum</a>, <a href="/wiki/Chlorine" title="Chlorine">chlorine</a></li></ul> <p>The amount of plant-available <a href="/wiki/Phosphorus" title="Phosphorus">phosphorus</a> is most often measured with a chemical extraction method, and different countries have different standard methods. Just in Europe, more than 10 different soil phosphorus tests are currently in use and the results from these different tests are not directly comparable.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Do-it-yourself" class="mw-redirect" title="Do-it-yourself">Do-it-yourself</a> kits usually only test for the three "major nutrients", and for soil <a href="/wiki/Acidity" class="mw-redirect" title="Acidity">acidity</a> or <a href="/wiki/PH_level" class="mw-redirect" title="PH level">pH level</a>. Do-it-yourself kits are often sold at farming cooperatives, university labs, private labs, and some hardware and gardening stores. <a href="/wiki/Electrical_meter" class="mw-redirect" title="Electrical meter">Electrical meters</a> that measure pH, water content, and sometimes nutrient content of the soil are also available at many hardware stores. Laboratory tests are more accurate than tests with do-it-yourself kits and electrical meters. An <a rel="nofollow" class="external text" href="http://us.wlabs.com/wp-content/uploads/2013/02/samplesoilreport.pdf">example soil sample report</a> is provided for reference by Wallace Laboratories LLC. </p><p>In order to avoid complex and expensive analytical techniques, prediction based on regression equations relating to more easily measurable parameters can be provided by <a href="/wiki/Pedotransfer_function" title="Pedotransfer function">pedotransfer functions</a>. For instance, soil bulk density can be predicted using easily measured soil properties such as soil texture, pH and organic matter.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Soil testing is used to facilitate fertilizer composition and dosage selection for land employed in both agricultural and horticultural industries. </p><p>Prepaid mail-in kits for soil and ground water testing are available to facilitate the packaging and delivery of samples to a laboratory. Similarly, in 2004, laboratories began providing fertilizer recommendations along with the soil composition report. </p><p>Lab tests are more accurate and often utilize very precise <a href="/wiki/Flow_injection_analysis" title="Flow injection analysis">flow injection</a> technology (or Near InfraRed (NIR) scanning<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>). In addition, lab tests frequently include professional interpretation of results and recommendations. Provisory statements included in a lab report may outline any anomalies, exceptions, and shortcomings in the sampling, analytical process or results. </p><p>Some laboratories analyze for all 13 mineral nutrients and a dozen non-essential, potentially toxic minerals utilizing the "universal soil extractant" (<a href="/wiki/Ammonium_bicarbonate" title="Ammonium bicarbonate">ammonium bicarbonate</a> <a href="/wiki/DTPA" class="mw-redirect" title="DTPA">DTPA</a>).<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Engineering_soil_testing">Engineering soil testing</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=5" title="Edit section: Engineering soil testing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">geotechnical engineering</a>, a <b>soil test</b> can be used to determine the physical characteristics of a soil, such as its <a href="/wiki/Water_content" title="Water content">water content</a>, <a href="/wiki/Void_ratio" title="Void ratio">void ratio</a> or <a href="/wiki/Bulk_density" title="Bulk density">bulk density</a>. Soil testing can also provide information related to the <a href="/wiki/Shear_strength_(soil)" title="Shear strength (soil)">shear strength</a>, rate of <a href="/wiki/Soil_consolidation" title="Soil consolidation">consolidation</a> and <a href="/wiki/Hydraulic_conductivity" title="Hydraulic conductivity">permeability</a> of the soil. The following is a non-exhaustive list of engineering soil tests. </p> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col"> <ul><li>Water content</li> <li><a href="/wiki/Specific_gravity" class="mw-redirect" title="Specific gravity">Specific gravity</a></li> <li><a href="/wiki/Particle-size_distribution" title="Particle-size distribution">Grain size analysis</a> (<a href="/wiki/Sieve_analysis" title="Sieve analysis">sieve analysis</a> or <a href="/wiki/Hydrometer" title="Hydrometer">hydrometer</a> method)</li> <li><a href="/wiki/Atterberg_limits" title="Atterberg limits">Atterberg limits</a></li> <li><a href="/wiki/Shrink%E2%80%93swell_capacity" title="Shrink–swell capacity">Free swell index</a></li> <li>Swelling pressure</li> <li><a href="/wiki/Bulk_density" title="Bulk density">Dry density</a></li> <li><a href="/wiki/Triaxial_shear_test" title="Triaxial shear test">Triaxial shear test</a></li> <li><a href="/wiki/Direct_shear_test" title="Direct shear test">Direct shear test</a></li> <li><a href="/wiki/Relative_density#The_relative_density_in_soil_mechanics" title="Relative density">Relative density</a></li> <li><a href="/wiki/Oedometer_test" title="Oedometer test">Oedometer test</a> for <a href="/wiki/Soil_consolidation" title="Soil consolidation">consolidation</a></li> <li><a href="/wiki/California_bearing_ratio" title="California bearing ratio">California bearing ratio</a> (CBR)</li> <li><a href="/wiki/Hydraulic_conductivity#Laboratory_methods" title="Hydraulic conductivity">Permeability tests</a> (constant-head, falling-head, etc.)</li> <li><a href="/wiki/Shear_vane_test" title="Shear vane test">Vane shear test</a></li></ul></div> <div class="mw-heading mw-heading2"><h2 id="Soil_contaminants">Soil contaminants</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=6" title="Edit section: Soil contaminants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Common mineral <a href="/wiki/Soil_contaminant" class="mw-redirect" title="Soil contaminant">soil contaminants</a> include <a href="/wiki/Arsenic" title="Arsenic">arsenic</a>, <a href="/wiki/Barium" title="Barium">barium</a>, <a href="/wiki/Cadmium" title="Cadmium">cadmium</a>, <a href="/wiki/Copper" title="Copper">copper</a>, <a href="/wiki/Mercury_(element)" title="Mercury (element)">mercury</a>, <a href="/wiki/Lead" title="Lead">lead</a>, and <a href="/wiki/Zinc" title="Zinc">zinc</a>. </p><p>Lead is a particularly dangerous soil component. The following table from the <a href="/wiki/University_of_Minnesota" title="University of Minnesota">University of Minnesota</a> categorizes typical soil concentration levels and their associated health risks.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <table class="wikitable"> <caption>Children and pregnant women should avoid contact with soil estimated total lead levels above 300 <a href="/wiki/Parts_per_million" class="mw-redirect" title="Parts per million">ppm</a> </caption> <tbody><tr> <th>Lead Level</th> <th>Extracted lead (ppm)</th> <th>Estimated total lead (ppm) </th></tr> <tr> <td>Low</td> <td><43</td> <td><500 </td></tr> <tr> <td>Medium</td> <td>43-126</td> <td>500-1000 </td></tr> <tr> <td>High</td> <td>126-480</td> <td>1000-3000 </td></tr> <tr> <td>Very high</td> <td>>480</td> <td>>3000 </td></tr></tbody></table> <p>The following is a non-exhaustive list of recommendations to limit exposure to lead in garden soils: </p> <ol><li>Locate gardens away from old painted structures and heavily traveled roads</li> <li>Give planting preferences to fruiting crops (tomatoes, squash, peas, sunflowers, corn, etc.)</li> <li>Incorporate organic materials such as finished <a href="/wiki/Compost" title="Compost">compost</a>, humus, and peat moss</li> <li>Lime soil as recommended by soil test (a pH of 6.5 minimizes lead availability)</li> <li>Discard old and outer leaves before eating leafy vegetables; peel root crops; wash all produce</li> <li>Keep dust to a minimum by maintaining a mulched and/or moist soil surface</li></ol> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=7" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Base-cation_saturation_ratio" title="Base-cation saturation ratio">Base-cation saturation ratio</a></li> <li><a href="/wiki/Fertilizer" title="Fertilizer">Fertilizer</a></li> <li><a href="/wiki/Geotechnical_investigation" title="Geotechnical investigation">Geotechnical investigation</a></li> <li><a href="/wiki/Liming_(soil)" title="Liming (soil)">Liming (soil)</a></li> <li><a href="/wiki/Plant_tissue_test" title="Plant tissue test">Plant tissue test</a></li> <li><a href="/wiki/SESL_Australia" title="SESL Australia">SESL Australia</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=8" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFSumner1999" class="citation book cs1">Sumner, Malcolm E. (1999-08-31). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=iP7LWpn5oJ0C&q=%22law+of+maximum%22+wallace&pg=SL4-PA89"><i>Soil Science</i></a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780849331367" title="Special:BookSources/9780849331367"><bdi>9780849331367</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">2012-11-08</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Soil+Science&rft.date=1999-08-31&rft.isbn=9780849331367&rft.aulast=Sumner&rft.aufirst=Malcolm+E.&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DiP7LWpn5oJ0C%26q%3D%2522law%2Bof%2Bmaximum%2522%2Bwallace%26pg%3DSL4-PA89&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASoil+test" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://cropwatch.unl.edu/ssm/soilsampling">"Soil Sampling for Precision Agriculture"</a>. <i>CropWatch</i>. 2015-09-17<span class="reference-accessdate">. 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"An overview of fertilizer-P recommendations in Europe: soil testing, calibration and fertilizer recommendations". <i>Soil Use and Management</i>. <b>28</b> (4): 419–435. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1475-2743.2012.00453.x">10.1111/j.1475-2743.2012.00453.x</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1475-2743">1475-2743</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:98596449">98596449</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Soil+Use+and+Management&rft.atitle=An+overview+of+fertilizer-P+recommendations+in+Europe%3A+soil+testing%2C+calibration+and+fertilizer+recommendations&rft.volume=28&rft.issue=4&rft.pages=419-435&rft.date=2012-12-01&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A98596449%23id-name%3DS2CID&rft.issn=1475-2743&rft_id=info%3Adoi%2F10.1111%2Fj.1475-2743.2012.00453.x&rft.aulast=Jordan-Meille&rft.aufirst=L.&rft.au=Rub%C3%A6k%2C+G.+H.&rft.au=Ehlert%2C+P.+a.+I.&rft.au=Genot%2C+V.&rft.au=Hofman%2C+G.&rft.au=Goulding%2C+K.&rft.au=Recknagel%2C+J.&rft.au=Provolo%2C+G.&rft.au=Barraclough%2C+P.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASoil+test" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFQiaoZhuJiaHuang2019" class="citation journal cs1">Qiao, Jiangbo; Zhu, Yuanjun; Jia, Xiaoxu; Huang, Laiming; Shao, Ming’an (2019-01-01). <a rel="nofollow" class="external text" href="https://doi.org/10.1007/s11368-018-2040-1">"Development of pedotransfer functions for predicting the bulk density in the critical zone on the Loess Plateau, China"</a>. <i>Journal of Soils and Sediments</i>. <b>19</b> (1): 366–372. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs11368-018-2040-1">10.1007/s11368-018-2040-1</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1614-7480">1614-7480</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Soils+and+Sediments&rft.atitle=Development+of+pedotransfer+functions+for+predicting+the+bulk+density+in+the+critical+zone+on+the+Loess+Plateau%2C+China&rft.volume=19&rft.issue=1&rft.pages=366-372&rft.date=2019-01-01&rft_id=info%3Adoi%2F10.1007%2Fs11368-018-2040-1&rft.issn=1614-7480&rft.aulast=Qiao&rft.aufirst=Jiangbo&rft.au=Zhu%2C+Yuanjun&rft.au=Jia%2C+Xiaoxu&rft.au=Huang%2C+Laiming&rft.au=Shao%2C+Ming%E2%80%99an&rft_id=https%3A%2F%2Fdoi.org%2F10.1007%2Fs11368-018-2040-1&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASoil+test" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.kake.com/story/40168844/on-the-spot-real-time-and-affordable-soil-testing-technology-is-enhancing-the-agricultural-value-chain-in-uganda">On-the-spot, real-time and affordable soil testing technology is enhancing the agricultural value chain in Uganda.</a></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ictupdate.cta.int/2019/01/14/on-the-spot-easy-and-affordable-soil-testing-for-kenyan-smallholder-farmers/">On-the-spot, easy and affordable soil testing for Kenyan smallholder farmers</a></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://us.wlabs.com/suitable-import-borrow-topsoil-or-reclaimed-soil/">"wlabs.com"</a>. Wallace Laboratories LLC<span class="reference-accessdate">. Retrieved <span class="nowrap">2012-11-08</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=wlabs.com&rft.pub=Wallace+Laboratories+LLC&rft_id=http%3A%2F%2Fus.wlabs.com%2Fsuitable-import-borrow-topsoil-or-reclaimed-soil%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASoil+test" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCarl_J._Rosen" class="citation web cs1">Carl J. Rosen. <a rel="nofollow" class="external text" href="https://conservancy.umn.edu/server/api/core/bitstreams/d04616ad-7af4-49f7-81a1-a8da9a0d2697/content">"Lead in the Home Garden and Urban Soil Environment"</a>. Extension.umn.edu<span class="reference-accessdate">. Retrieved <span class="nowrap">2012-11-08</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Lead+in+the+Home+Garden+and+Urban+Soil+Environment&rft.pub=Extension.umn.edu&rft.au=Carl+J.+Rosen&rft_id=https%3A%2F%2Fconservancy.umn.edu%2Fserver%2Fapi%2Fcore%2Fbitstreams%2Fd04616ad-7af4-49f7-81a1-a8da9a0d2697%2Fcontent&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASoil+test" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Soil_test&action=edit&section=9" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.epa.gov/ebtpages/pollsoilcontaminants.html">Pollutants/Toxics > Soil Contaminants</a></li> <li><a rel="nofollow" class="external text" href="http://www.epa.gov/superfund/students/clas_act/haz-ed/ff_09.htm">Common Contaminants</a></li> <li><a rel="nofollow" class="external text" href="http://www.ext.colostate.edu/pubs/Crops/00501.html">Colorado State University Extension Service</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20090627132930/http://grass-roots.ca/soil_test_info/why_a_soil_test.php">Mail-in soil test kits and nutrient management/fertilizer reports</a></li> <li><a rel="nofollow" class="external text" href="https://purl.fdlp.gov/GPO/gpo41808">Field Book for Describing and Sampling Soils</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output 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scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Soil_science_topics" title="Template:Soil science topics"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Soil_science_topics" title="Template talk:Soil science topics"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Soil_science_topics" title="Special:EditPage/Template:Soil science topics"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Soil_science" style="font-size:114%;margin:0 4em"><a href="/wiki/Soil_science" title="Soil science">Soil science</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><a href="/wiki/History_of_soil_science" title="History of soil science">History</a></li> <li><a href="/wiki/Index_of_soil-related_articles" title="Index of soil-related articles">Index</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Main fields</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pedology" title="Pedology">Pedology</a></li> <li><a href="/wiki/Edaphology" title="Edaphology">Edaphology</a></li> <li><a href="/wiki/Soil_biology" title="Soil biology">Soil biology</a></li> <li><a href="/wiki/Soil_microbiology" title="Soil microbiology">Soil microbiology</a></li> <li><a href="/wiki/Soil_zoology" title="Soil zoology">Soil zoology</a></li> <li><a href="/wiki/Soil_ecology" title="Soil ecology">Soil ecology</a></li> <li><a href="/wiki/Soil_physics" title="Soil physics">Soil physics</a></li> <li><a href="/wiki/Soil_mechanics" title="Soil mechanics">Soil mechanics</a></li> <li><a href="/wiki/Soil_chemistry" title="Soil chemistry">Soil chemistry</a></li> <li><a href="/wiki/Environmental_soil_science" title="Environmental soil science">Environmental soil science</a></li> <li><a href="/wiki/Agricultural_soil_science" title="Agricultural soil science">Agricultural soil science</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="8" style="width:1px;padding:0 0 0 2px"><div><span class="mw-image-border" typeof="mw:File"><a href="/wiki/File:Soil_profile.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/110px-Soil_profile.svg.png" decoding="async" width="110" height="159" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/165px-Soil_profile.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/220px-Soil_profile.svg.png 2x" data-file-width="456" data-file-height="660" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Soil topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Soil" title="Soil">Soil</a></li> <li><a href="/wiki/Pedosphere" title="Pedosphere">Pedosphere</a> <ul><li><a href="/wiki/Soil_morphology" title="Soil morphology">Soil morphology</a></li> <li><a href="/wiki/Pedodiversity" title="Pedodiversity">Pedodiversity</a></li> <li><a href="/wiki/Soil_formation" title="Soil formation">Soil formation</a></li></ul></li> <li><a href="/wiki/Soil_erosion" title="Soil erosion">Soil erosion</a></li> <li><a href="/wiki/Soil_contamination" title="Soil contamination">Soil contamination</a></li> <li><a href="/wiki/Soil_retrogression_and_degradation" title="Soil retrogression and degradation">Soil retrogression and degradation</a></li> <li><a href="/wiki/Soil_compaction" title="Soil compaction">Soil compaction</a> <ul><li><a href="/wiki/Soil_compaction_(agriculture)" title="Soil compaction (agriculture)">Soil compaction (agriculture)</a></li></ul></li> <li><a href="/wiki/Soil_sealing" title="Soil sealing">Soil sealing</a></li> <li><a href="/wiki/Soil_salinity" title="Soil salinity">Soil salinity</a> <ul><li><a href="/wiki/Alkali_soil" title="Alkali soil">Alkali soil</a></li></ul></li> <li><a href="/wiki/Soil_pH" title="Soil pH">Soil pH</a> <ul><li><a href="/wiki/Soil_acidification" title="Soil acidification">Soil acidification</a></li></ul></li> <li><a href="/wiki/Soil_health" title="Soil health">Soil health</a></li> <li><a href="/wiki/Soil_life" class="mw-redirect" title="Soil life">Soil life</a></li> <li><a href="/wiki/Soil_biodiversity" title="Soil biodiversity">Soil biodiversity</a></li> <li><a href="/wiki/Soil_quality" title="Soil quality">Soil quality</a></li> <li><a href="/wiki/Soil_value" title="Soil value">Soil value</a></li> <li><a href="/wiki/Soil_fertility" title="Soil fertility">Soil fertility</a></li> <li><a href="/wiki/Soil_resilience" title="Soil resilience">Soil resilience</a></li> <li><a href="/wiki/Soil_color" title="Soil color">Soil color</a></li> <li><a href="/wiki/Soil_texture" title="Soil texture">Soil texture</a></li> <li><a href="/wiki/Soil_structure" title="Soil structure">Soil structure</a> <ul><li><a href="/wiki/Pore_space_in_soil" title="Pore space in soil">Pore space in soil</a></li> <li><a href="/wiki/Pore_water_pressure" title="Pore water pressure">Pore water pressure</a></li></ul></li> <li><a href="/wiki/Soil_crust" title="Soil crust">Soil crust</a></li> <li><a href="/wiki/Soil_horizon" title="Soil horizon">Soil horizon</a></li> <li><a href="/wiki/Soil_biomantle" title="Soil biomantle">Soil biomantle</a></li> <li><a href="/wiki/Soil_carbon" title="Soil carbon">Soil carbon</a></li> <li><a href="/wiki/Soil_gas" title="Soil gas">Soil gas</a> <ul><li><a href="/wiki/Soil_respiration" title="Soil respiration">Soil respiration</a></li></ul></li> <li><a href="/wiki/Soil_organic_matter" title="Soil organic matter">Soil organic matter</a></li> <li><a href="/wiki/Soil_moisture" title="Soil moisture">Soil moisture</a> <ul><li><a href="/wiki/Soil_water_(retention)" title="Soil water (retention)">Soil water (retention)</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil_type" title="Soil type">Soil type</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Soil_classification" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Soil_type" title="Template:Soil type"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Soil_type" title="Template talk:Soil type"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Soil_type" title="Special:EditPage/Template:Soil type"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Soil_classification" style="font-size:114%;margin:0 4em"><a href="/wiki/Soil_classification" title="Soil classification">Soil classification</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/World_Reference_Base_for_Soil_Resources" title="World Reference Base for Soil Resources">World Reference Base<br /> for Soil Resources</a> (1998–)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acrisol" title="Acrisol">Acrisols</a></li> <li><a href="/wiki/Alisols" class="mw-redirect" title="Alisols">Alisols</a></li> <li><a href="/wiki/Andosol" title="Andosol">Andosols</a></li> <li><a href="/wiki/Anthrosol" title="Anthrosol">Anthrosols</a></li> <li><a href="/wiki/Psamment" title="Psamment">Arenosols</a></li> <li><a href="/wiki/Calcisol" title="Calcisol">Calcisols</a></li> <li><a href="/wiki/Cambisol" title="Cambisol">Cambisols</a></li> <li><a href="/wiki/Chernozem" title="Chernozem">Chernozem</a></li> <li><a href="/wiki/Cryosols" class="mw-redirect" title="Cryosols">Cryosols</a></li> <li><a href="/wiki/Durisol" title="Durisol">Durisols</a></li> <li><a href="/wiki/Ferralsols" class="mw-redirect" title="Ferralsols">Ferralsols</a></li> <li><a href="/wiki/Fluvisol" title="Fluvisol">Fluvisols</a></li> <li><a href="/wiki/Gleysol" title="Gleysol">Gleysols</a></li> <li><a href="/wiki/Gypsisols" class="mw-redirect" title="Gypsisols">Gypsisols</a></li> <li><a href="/wiki/Histosol" title="Histosol">Histosol</a></li> <li><a href="/wiki/Kastanozem" title="Kastanozem">Kastanozems</a></li> <li><a href="/wiki/Leptosol" title="Leptosol">Leptosols</a></li> <li><a href="/wiki/Lixisol" title="Lixisol">Lixisols</a></li> <li><a href="/wiki/Luvisol" title="Luvisol">Luvisols</a></li> <li><a href="/wiki/Nitisol" title="Nitisol">Nitisols</a></li> <li><a href="/wiki/Phaeozem" title="Phaeozem">Phaeozems</a></li> <li><a href="/wiki/Planosol" title="Planosol">Planosols</a></li> <li><a href="/wiki/Plinthosol" title="Plinthosol">Plinthosols</a></li> <li><a href="/wiki/Podzol" title="Podzol">Podzols</a></li> <li><a href="/wiki/Regosol" title="Regosol">Regosols</a></li> <li><a href="/wiki/Retisol" title="Retisol">Retisols</a></li> <li><a href="/wiki/Solonchak" title="Solonchak">Solonchaks</a></li> <li><a href="/wiki/Solonetz" title="Solonetz">Solonetz</a></li> <li><a href="/wiki/Stagnosol" title="Stagnosol">Stagnosol</a></li> <li><a href="/wiki/Technosol" title="Technosol">Technosols</a></li> <li><a href="/wiki/Umbrisol" title="Umbrisol">Umbrisols</a></li> <li><a href="/wiki/Vertisol" title="Vertisol">Vertisols</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/USDA_soil_taxonomy" title="USDA soil taxonomy">USDA soil taxonomy</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alfisol" title="Alfisol">Alfisols</a></li> <li><a href="/wiki/Andisol" title="Andisol">Andisols</a></li> <li><a href="/wiki/Aridisol" title="Aridisol">Aridisols</a></li> <li><a href="/wiki/Entisol" title="Entisol">Entisols</a></li> <li><a href="/wiki/Gelisol" title="Gelisol">Gelisols</a></li> <li><a href="/wiki/Histosol" title="Histosol">Histosols</a></li> <li><a href="/wiki/Inceptisol" title="Inceptisol">Inceptisols</a></li> <li><a href="/wiki/Mollisol" title="Mollisol">Mollisols</a></li> <li><a href="/wiki/Oxisol" title="Oxisol">Oxisols</a></li> <li><a href="/wiki/Podzol" title="Podzol">Spodosols</a></li> <li><a href="/wiki/Ultisol" title="Ultisol">Ultisols</a></li> <li><a href="/wiki/Vertisol" title="Vertisol">Vertisols</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other systems</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/FAO_soil_classification" title="FAO soil classification">FAO soil classification</a> (1974–1998)</li> <li><a href="/wiki/Unified_Soil_Classification_System" title="Unified Soil Classification System">Unified Soil Classification System</a></li> <li><a href="/wiki/AASHTO_Soil_Classification_System" title="AASHTO Soil Classification System">AASHTO Soil Classification System</a></li> <li><a href="/wiki/R%C3%A9f%C3%A9rentiel_p%C3%A9dologique" title="Référentiel pédologique">Référentiel pédologique</a> (French classification system)</li> <li><a href="/wiki/Canadian_system_of_soil_classification" title="Canadian system of soil classification">Canadian system of soil classification</a></li> <li><a href="/wiki/Australian_Soil_Classification" title="Australian Soil Classification">Australian Soil Classification</a></li> <li><a href="/wiki/Polish_Soil_Classification" title="Polish Soil Classification">Polish Soil Classification</a></li> <li><a href="/wiki/1938_USDA_soil_taxonomy" title="1938 USDA soil taxonomy">1938 USDA soil taxonomy</a></li> <li><a href="/wiki/List_of_U.S._state_soils" title="List of U.S. state soils">List of U.S. state soils</a></li> <li><a href="/wiki/List_of_vineyard_soil_types" title="List of vineyard soil types">List of vineyard soil types</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-systematic soil types</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sand" title="Sand">Sand</a></li> <li><a href="/wiki/Silt" title="Silt">Silt</a></li> <li><a href="/wiki/Clay" title="Clay">Clay</a></li> <li><a href="/wiki/Loam" title="Loam">Loam</a></li> <li><a href="/wiki/Topsoil" title="Topsoil">Topsoil</a></li> <li><a href="/wiki/Subsoil" title="Subsoil">Subsoil</a></li> <li><a href="/wiki/Soil_crust" title="Soil crust">Soil crust</a></li> <li><a href="/wiki/Claypan" title="Claypan">Claypan</a></li> <li><a href="/wiki/Hardpan" title="Hardpan">Hardpan</a></li> <li><a href="/wiki/Gypcrust" title="Gypcrust">Gypcrust</a></li> <li><a href="/wiki/Caliche" title="Caliche">Caliche</a></li> <li><a href="/wiki/Parent_material" title="Parent material">Parent material</a></li> <li><a href="/wiki/Pedosphere" title="Pedosphere">Pedosphere</a></li> <li><a href="/wiki/Laimosphere" title="Laimosphere">Laimosphere</a></li> <li><a href="/wiki/Rhizosphere" title="Rhizosphere">Rhizosphere</a></li> <li><a href="/wiki/Bulk_soil" title="Bulk soil">Bulk soil</a></li> <li><a href="/wiki/Alkali_soil" title="Alkali soil">Alkali soil</a></li> <li><a href="/wiki/Bay_mud" title="Bay mud">Bay mud</a></li> <li><a href="/wiki/Blue_goo" title="Blue goo">Blue goo</a></li> <li><a href="/wiki/Brickearth" title="Brickearth">Brickearth</a></li> <li><a href="/wiki/Brown_earth" title="Brown earth">Brown earth</a></li> <li><a href="/wiki/Calcareous_grassland" title="Calcareous grassland">Calcareous grassland</a></li> <li><a href="/wiki/Dark_earth" title="Dark earth">Dark earth</a></li> <li><a href="/wiki/Dry_quicksand" title="Dry quicksand">Dry quicksand</a></li> <li><a href="/wiki/Duplex_soil" title="Duplex soil">Duplex soil</a></li> <li><a href="/wiki/Eluvium" title="Eluvium">Eluvium</a></li> <li><a href="/wiki/Expansive_clay" title="Expansive clay">Expansive clay</a></li> <li><a href="/wiki/Fill_dirt" title="Fill dirt">Fill dirt</a></li> <li><a href="/wiki/Fuller%27s_earth" title="Fuller's earth">Fuller's earth</a></li> <li><a href="/wiki/Hydrophobic_soil" title="Hydrophobic soil">Hydrophobic soil</a></li> <li><a href="/wiki/Loess" title="Loess">Loess</a></li> <li><a href="/wiki/Lunar_soil" class="mw-redirect" title="Lunar soil">Lunar soil</a></li> <li><a href="/wiki/Martian_soil" class="mw-redirect" title="Martian soil">Martian soil</a></li> <li><a href="/wiki/Mud" title="Mud">Mud</a></li> <li><a href="/wiki/Muskeg" title="Muskeg">Muskeg</a></li> <li><a href="/wiki/Paleosol" title="Paleosol">Paleosol</a></li> <li><a href="/wiki/Peat" title="Peat">Peat</a></li> <li><a href="/wiki/Prime_farmland" title="Prime farmland">Prime farmland</a></li> <li><a href="/wiki/Quicksand" title="Quicksand">Quicksand</a></li> <li><a href="/wiki/Serpentine_soil" title="Serpentine soil">Serpentine soil</a></li> <li><a href="/wiki/Spodic_soil" class="mw-redirect" title="Spodic soil">Spodic soil</a></li> <li><a href="/wiki/Stagnogley" title="Stagnogley">Stagnogley</a></li> <li><a href="/wiki/Subaqueous_soil" title="Subaqueous soil">Subaqueous soil</a></li> <li><a href="/wiki/Takir_(soil)" title="Takir (soil)">Takir</a></li> <li><a href="/wiki/Terra_preta" title="Terra preta">Terra preta</a></li> <li><a href="/wiki/Terra_rossa_(soil)" title="Terra rossa (soil)">Terra rossa</a></li> <li><a href="/wiki/Tropical_peat" title="Tropical peat">Tropical peat</a></li> <li><a href="/wiki/Yedoma" title="Yedoma">Yedoma</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Types_of_soil" title="Category:Types of soil">Types of soil</a></div></td></tr></tbody></table></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Soil_conservation" title="Soil conservation">Soil conservation</a></li> <li><a href="/wiki/Soil_management" title="Soil management">Soil management</a></li> <li><a href="/wiki/Soil_guideline_value" title="Soil guideline value">Soil guideline value</a></li> <li><a href="/wiki/Soil_survey" title="Soil survey">Soil survey</a></li> <li><a class="mw-selflink selflink">Soil test</a></li> <li><a href="/wiki/Soil_governance" title="Soil governance">Soil governance</a></li> <li><a href="/wiki/Soil_value" title="Soil value">Soil value</a></li> <li><a href="/wiki/Soil_salinity_control" title="Soil salinity control">Soil salinity control</a></li> <li><a href="/wiki/Erosion_control" title="Erosion control">Erosion control</a></li> <li><a href="/wiki/Agroecology" title="Agroecology">Agroecology</a></li> <li><a href="/wiki/Liming_(soil)" title="Liming (soil)">Liming (soil)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related fields</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Geology" title="Geology">Geology</a></li> <li><a href="/wiki/Geochemistry" title="Geochemistry">Geochemistry</a></li> <li><a href="/wiki/Petrology" title="Petrology">Petrology</a></li> <li><a href="/wiki/Geomorphology" title="Geomorphology">Geomorphology</a></li> <li><a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">Geotechnical engineering</a></li> <li><a href="/wiki/Hydrology" title="Hydrology">Hydrology</a></li> <li><a href="/wiki/Hydrogeology" title="Hydrogeology">Hydrogeology</a></li> <li><a href="/wiki/Biogeography" title="Biogeography">Biogeography</a></li> <li><a href="/wiki/Earth_materials" title="Earth materials">Earth materials</a></li> <li><a href="/wiki/Archaeology" title="Archaeology">Archaeology</a></li> <li><a href="/wiki/Agricultural_science" title="Agricultural science">Agricultural science</a> <ul><li><a href="/wiki/Agrology" class="mw-redirect" title="Agrology">Agrology</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Societies, Initiatives</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Australian_Society_of_Soil_Science_Incorporated" title="Australian Society of Soil Science Incorporated">Australian Society of Soil Science Incorporated</a></li> <li><a href="/wiki/Canadian_Society_of_Soil_Science" title="Canadian Society of Soil Science">Canadian Society of Soil Science</a></li> <li><a href="/wiki/Central_Soil_Salinity_Research_Institute" title="Central Soil Salinity Research Institute">Central Soil Salinity Research Institute</a> (India)</li> <li><a href="/wiki/German_Soil_Science_Society" title="German Soil Science Society">German Soil Science Society</a></li> <li><a href="/wiki/Indian_Institute_of_Soil_Science" title="Indian Institute of Soil Science">Indian Institute of Soil Science</a></li> <li><a href="/wiki/International_Union_of_Soil_Sciences" title="International Union of Soil Sciences">International Union of Soil Sciences</a></li> <li><a href="/wiki/International_Year_of_Soil" title="International Year of Soil">International Year of Soil</a></li> <li><a href="/wiki/National_Society_of_Consulting_Soil_Scientists" title="National Society of Consulting Soil Scientists">National Society of Consulting Soil Scientists</a> (US)</li> <li><a href="/wiki/OPAL_Soil_Centre" title="OPAL Soil Centre">OPAL Soil Centre</a> (UK)</li> <li><a href="/wiki/Soil_Science_Society_of_Poland" title="Soil Science Society of Poland">Soil Science Society of Poland</a></li> <li><a href="/wiki/Soil_and_Water_Conservation_Society" title="Soil and Water Conservation Society">Soil and Water Conservation Society</a> (US)</li> <li><a href="/wiki/Soil_Science_Society_of_America" title="Soil Science Society of America">Soil Science Society of America</a></li> <li><a href="/wiki/World_Congress_of_Soil_Science" title="World Congress of Soil Science">World Congress of Soil Science</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Scientific journals</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Acta_Agriculturae_Scandinavica_B" title="Acta Agriculturae Scandinavica B">Acta Agriculturae Scandinavica B</a></i></li> <li><i><a href="/wiki/Journal_of_Soil_and_Water_Conservation" title="Journal of Soil and Water Conservation">Journal of Soil and Water Conservation</a></i></li> <li><i><a href="/wiki/Plant_and_Soil" title="Plant and Soil">Plant and Soil</a></i></li> <li><i><a href="/wiki/Pochvovedenie" title="Pochvovedenie">Pochvovedenie</a></i></li> <li><i><a href="/wiki/Soil_Research" title="Soil Research">Soil Research</a></i></li> <li><i><a href="/wiki/Soil_Science_Society_of_America_Journal" title="Soil Science Society of America Journal">Soil Science Society of America Journal</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Land_use" title="Land use">Land use</a></li> <li><a href="/wiki/Land_conversion" class="mw-redirect" title="Land conversion">Land conversion</a></li> <li><a href="/wiki/Land_management" title="Land management">Land management</a></li> <li><a href="/wiki/Vegetation" title="Vegetation">Vegetation</a></li> <li><a href="/wiki/Infiltration_(hydrology)" title="Infiltration (hydrology)">Infiltration (hydrology)</a></li> <li><a href="/wiki/Groundwater" title="Groundwater">Groundwater</a></li> <li><a href="/wiki/Crust_(geology)" title="Crust (geology)">Crust (geology)</a></li> <li><a href="/wiki/Impervious_surface" title="Impervious surface">Impervious surface</a>/<a href="/wiki/Surface_runoff" title="Surface runoff">Surface runoff</a></li> <li><a href="/wiki/Petrichor" title="Petrichor">Petrichor</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Project page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/16px-Symbol_project_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/23px-Symbol_project_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/31px-Symbol_project_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Wikipedia:WikiProject_Soil" title="Wikipedia:WikiProject Soil">Wikipedia:WikiProject Soil</a></li> <li> <span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Soil" title="Category:Soil">Category soil</a></li> <li>  <a href="/wiki/Category:Soil_science" title="Category:Soil science">Category soil science</a></li> <li><span class="noviewer" typeof="mw:File"><span title="List-Class article"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/23px-Symbol_list_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/31px-Symbol_list_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/List_of_soil_scientists" title="List of soil scientists">List of soil scientists</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Geotechnical_engineering" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Geotechnical_engineering" title="Template:Geotechnical engineering"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Geotechnical_engineering" title="Template talk:Geotechnical engineering"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Geotechnical_engineering" title="Special:EditPage/Template:Geotechnical engineering"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Geotechnical_engineering" style="font-size:114%;margin:0 4em"><a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">Geotechnical engineering</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Offshore_geotechnical_engineering" title="Offshore geotechnical engineering">Offshore geotechnical engineering</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geotechnical_investigation" title="Geotechnical investigation">Investigation</a> <br />and<br />instrumentation</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Field (<i>in situ</i>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"><div class="div-col" style="column-width: 33em;"> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Core_sample.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/20px-Core_sample.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/30px-Core_sample.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/40px-Core_sample.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Core_drill" title="Core drill">Core drill</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Cone_penetration_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/20px-Cone_penetration_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/30px-Cone_penetration_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/40px-Cone_penetration_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Cone_penetration_test" title="Cone penetration test">Cone penetration test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Geo-electrical_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/20px-Geo-electrical_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/30px-Geo-electrical_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/40px-Geo-electrical_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Geo-electrical_sounding&action=edit&redlink=1" class="new" title="Geo-electrical sounding (page does not exist)">Geo-electrical sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:In_situ_permeameter_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/20px-In_situ_permeameter_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/30px-In_situ_permeameter_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/40px-In_situ_permeameter_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Permeability_(Earth_sciences)" class="mw-redirect" title="Permeability (Earth sciences)">Permeability test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Load_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/20px-Load_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/30px-Load_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/40px-Load_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Load_test" class="mw-redirect" title="Load test">Load test</a> <ul><li><a href="/wiki/Static_load_testing" title="Static load testing">Static</a></li> <li><a href="/wiki/Dynamic_load_testing" title="Dynamic load testing">Dynamic</a></li> <li><a href="/wiki/Statnamic_load_test" title="Statnamic load test">Statnamic</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Pore_pressure_measurement.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/20px-Pore_pressure_measurement.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/30px-Pore_pressure_measurement.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/40px-Pore_pressure_measurement.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> Pore pressure measurement <ul><li><a href="/wiki/Piezometer" class="mw-redirect" title="Piezometer">Piezometer</a></li> <li><a href="/wiki/Well#Classification" title="Well">Well</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Ram_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/20px-Ram_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/30px-Ram_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/40px-Ram_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Ram_sounding&action=edit&redlink=1" class="new" title="Ram sounding (page does not exist)">Ram sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rock_control_drilling.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/20px-Rock_control_drilling.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/30px-Rock_control_drilling.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/40px-Rock_control_drilling.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Rock_control_drilling&action=edit&redlink=1" class="new" title="Rock control drilling (page does not exist)">Rock control drilling</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rotary_pressure_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/20px-Rotary_pressure_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/30px-Rotary_pressure_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/40px-Rotary_pressure_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Rotary-pressure_sounding" title="Rotary-pressure sounding">Rotary-pressure sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rotary_weight_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/20px-Rotary_weight_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/30px-Rotary_weight_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/40px-Rotary_weight_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Rotary_weight_sounding&action=edit&redlink=1" class="new" title="Rotary weight sounding (page does not exist)">Rotary weight sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Sample_series.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/20px-Sample_series.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/30px-Sample_series.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/40px-Sample_series.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a class="mw-selflink-fragment" href="#Soil_testing">Sample series</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Screw_plate_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/20px-Screw_plate_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/30px-Screw_plate_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/40px-Screw_plate_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Screw_plate_test&action=edit&redlink=1" class="new" title="Screw plate test (page does not exist)">Screw plate test</a></li></ul> <ul><li><a href="/wiki/Deformation_monitoring" title="Deformation monitoring">Deformation monitoring</a> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Inclinometer.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/20px-Inclinometer.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/30px-Inclinometer.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/40px-Inclinometer.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Inclinometer" title="Inclinometer">Inclinometer</a></li> <li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Settlement_recordings.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/20px-Settlement_recordings.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/30px-Settlement_recordings.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/40px-Settlement_recordings.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Soil_consolidation" title="Soil consolidation">Settlement recordings</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Shear_vane_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/20px-Shear_vane_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/30px-Shear_vane_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/40px-Shear_vane_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Shear_vane_test" title="Shear vane test">Shear vane test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Simple_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/20px-Simple_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/30px-Simple_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/40px-Simple_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Simple_sounding&action=edit&redlink=1" class="new" title="Simple sounding (page does not exist)">Simple sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Standard_penetration_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/20px-Standard_penetration_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/30px-Standard_penetration_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/40px-Standard_penetration_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Standard_penetration_test" title="Standard penetration test">Standard penetration test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Total_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/20px-Total_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/30px-Total_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/40px-Total_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Total_sounding" title="Total sounding">Total sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Trial_pit.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/20px-Trial_pit.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/30px-Trial_pit.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/40px-Trial_pit.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Trial_pit" title="Trial pit">Trial pit</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Visible_rock.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/20px-Visible_rock.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/30px-Visible_rock.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/40px-Visible_rock.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Bedrock" title="Bedrock">Visible bedrock</a></li></ul> <ul><li><a href="/wiki/Nuclear_densometer" class="mw-redirect" title="Nuclear densometer">Nuclear densometer test</a></li></ul> <ul><li><a href="/wiki/Exploration_geophysics" title="Exploration geophysics">Exploration geophysics</a></li></ul> <ul><li><a href="/wiki/Crosshole_sonic_logging" title="Crosshole sonic logging">Crosshole sonic logging</a></li></ul> <ul><li><a href="/wiki/Pile_integrity_test" title="Pile integrity test">Pile integrity test</a></li></ul> <ul><li><a href="/wiki/Wave_equation_analysis" title="Wave equation analysis">Wave equation analysis</a></li></ul></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a class="mw-selflink selflink">Laboratory <br />testing</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Soil_classification" title="Soil classification">Soil classification</a></li> <li><a href="/wiki/Atterberg_limits" title="Atterberg limits">Atterberg limits</a></li> <li><a href="/wiki/California_bearing_ratio" title="California bearing ratio">California bearing ratio</a></li> <li><a href="/wiki/Direct_shear_test" title="Direct shear test">Direct shear test</a></li> <li><a href="/wiki/Hydrometer" title="Hydrometer">Hydrometer</a></li> <li><a href="/wiki/Proctor_compaction_test" title="Proctor compaction test">Proctor compaction test</a></li> <li><a href="/wiki/R-value_(soils)" title="R-value (soils)">R-value</a></li> <li><a href="/wiki/Sieve_analysis" title="Sieve analysis">Sieve analysis</a></li> <li><a href="/wiki/Triaxial_shear_test" title="Triaxial shear test">Triaxial shear test</a></li> <li><a href="/wiki/Oedometer_test" title="Oedometer test">Oedometer test</a></li> <li><a href="/wiki/Hydraulic_conductivity#Experimental_approach" title="Hydraulic conductivity">Hydraulic conductivity tests</a></li> <li><a href="/wiki/Water_content#Measurement" title="Water content">Water content tests</a></li> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil" title="Soil">Soil</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Clay" title="Clay">Clay</a></li> <li><a href="/wiki/Silt" title="Silt">Silt</a></li> <li><a href="/wiki/Sand" title="Sand">Sand</a></li> <li><a href="/wiki/Gravel" title="Gravel">Gravel</a></li> <li><a href="/wiki/Peat" title="Peat">Peat</a></li> <li><a href="/wiki/Loam" title="Loam">Loam</a></li> <li><a href="/wiki/Loess" title="Loess">Loess</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Properties</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydraulic_conductivity" title="Hydraulic conductivity">Hydraulic conductivity</a></li> <li><a href="/wiki/Water_content" title="Water content">Water content</a></li> <li><a href="/wiki/Void_ratio" title="Void ratio">Void ratio</a></li> <li><a href="/wiki/Bulk_density" title="Bulk density">Bulk density</a></li> <li><a href="/wiki/Thixotropy" title="Thixotropy">Thixotropy</a></li> <li><a href="/wiki/Reynolds%27_dilatancy" class="mw-redirect" title="Reynolds' dilatancy">Reynolds' dilatancy</a></li> <li><a href="/wiki/Angle_of_repose" title="Angle of repose">Angle of repose</a></li> <li><a href="/wiki/Friction#Angle_of_friction" title="Friction">Friction angle</a></li> <li><a href="/wiki/Cohesion_(geology)" title="Cohesion (geology)">Cohesion</a></li> <li><a href="/wiki/Porosity" title="Porosity">Porosity</a></li> <li><a href="/wiki/Permeability_(earth_sciences)" class="mw-redirect" title="Permeability (earth sciences)">Permeability</a></li> <li><a href="/wiki/Specific_storage" title="Specific storage">Specific storage</a></li> <li><a href="/wiki/Shear_strength_(soil)" title="Shear strength (soil)">Shear strength</a></li> <li><a href="/wiki/Soil_liquefaction" title="Soil liquefaction">Sensitivity</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Structures <br />(<a href="/wiki/Soil-structure_interaction" title="Soil-structure interaction">Interaction</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Natural features</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Topography" title="Topography">Topography</a></li> <li><a href="/wiki/Vegetation" title="Vegetation">Vegetation</a></li> <li><a href="/wiki/Terrain" title="Terrain">Terrain</a></li> <li><a href="/wiki/Topsoil" title="Topsoil">Topsoil</a></li> <li><a href="/wiki/Water_table" title="Water table">Water table</a></li> <li><a href="/wiki/Bedrock" title="Bedrock">Bedrock</a></li> <li><a href="/wiki/Subgrade" title="Subgrade">Subgrade</a></li> <li><a href="/wiki/Subsoil" title="Subsoil">Subsoil</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a href="/wiki/Earthworks_(engineering)" title="Earthworks (engineering)">Earthworks</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li>Shoring structures <ul><li><a href="/wiki/Retaining_wall" title="Retaining wall">Retaining walls</a></li> <li><a href="/wiki/Gabion" title="Gabion">Gabion</a></li> <li><a href="/wiki/Ground_freezing" title="Ground freezing">Ground freezing</a></li> <li><a href="/wiki/Mechanically_stabilized_earth" title="Mechanically stabilized earth">Mechanically stabilized earth</a></li> <li><a href="/wiki/Pressure_grouting" title="Pressure grouting">Pressure grouting</a></li> <li><a href="/wiki/Slurry_wall" title="Slurry wall">Slurry wall</a></li> <li><a href="/wiki/Soil_nailing" title="Soil nailing">Soil nailing</a></li> <li><a href="/wiki/Tieback_(geotechnical)" title="Tieback (geotechnical)">Tieback</a></li></ul></li> <li><a href="/wiki/Land_development" title="Land development">Land development</a></li> <li><a href="/wiki/Landfill" title="Landfill">Landfill</a></li> <li><a href="/wiki/Digging" title="Digging">Excavation</a></li> <li><a href="/wiki/Trench" title="Trench">Trench</a></li> <li><a href="/wiki/Embankment_(earthworks)" title="Embankment (earthworks)">Embankment</a></li> <li><a href="/wiki/Cut_(earthworks)" title="Cut (earthworks)">Cut</a></li> <li><a href="/wiki/Causeway" title="Causeway">Causeway</a></li> <li><a href="/wiki/Terrace_(earthworks)" title="Terrace (earthworks)">Terracing</a></li> <li><a href="/wiki/Tunnel#Cut-and-cover" title="Tunnel">Cut-and-cover</a></li> <li><a href="/wiki/Cut_and_fill" title="Cut and fill">Cut and fill</a></li> <li><a href="/wiki/Fill_dirt" title="Fill dirt">Fill dirt</a></li> <li><a href="/wiki/Grading_(engineering)" class="mw-redirect" title="Grading (engineering)">Grading</a></li> <li><a href="/wiki/Land_reclamation" title="Land reclamation">Land reclamation</a></li> <li><a href="/wiki/Track_bed" title="Track bed">Track bed</a></li> <li><a href="/wiki/Erosion_control" title="Erosion control">Erosion control</a></li> <li><a href="/wiki/Earth_structure" title="Earth structure">Earth structure</a></li> <li><a href="/wiki/Expanded_clay_aggregate" title="Expanded clay aggregate">Expanded clay aggregate</a></li> <li><a href="/wiki/Crushed_stone" title="Crushed stone">Crushed stone</a></li> <li><a href="/wiki/Geosynthetics" title="Geosynthetics">Geosynthetics</a> <ul><li><a href="/wiki/Geotextile" title="Geotextile">Geotextile</a></li> <li><a href="/wiki/Geomembrane" title="Geomembrane">Geomembrane</a></li> <li><a href="/wiki/Geosynthetic_clay_liner" title="Geosynthetic clay liner">Geosynthetic clay liner</a></li> <li><a href="/wiki/Cellular_confinement" title="Cellular confinement">Cellular confinement</a></li></ul></li> <li><a href="/wiki/Infiltration_(hydrology)" title="Infiltration (hydrology)">Infiltration</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a href="/wiki/Foundation_(engineering)" title="Foundation (engineering)">Foundations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shallow_foundation" title="Shallow foundation">Shallow</a></li> <li><a href="/wiki/Deep_foundation" title="Deep foundation">Deep</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil_mechanics" title="Soil mechanics">Mechanics</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Forces</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Effective_stress" title="Effective stress">Effective stress</a></li> <li><a href="/wiki/Pore_water_pressure" title="Pore water pressure">Pore water pressure</a></li> <li><a href="/wiki/Lateral_earth_pressure" title="Lateral earth pressure">Lateral earth pressure</a></li> <li><a href="/wiki/Overburden_pressure" title="Overburden pressure">Overburden pressure</a></li> <li><a href="/wiki/Preconsolidation_pressure" title="Preconsolidation pressure">Preconsolidation pressure</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Phenomena/<br />problems</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Permafrost" title="Permafrost">Permafrost</a></li> <li><a href="/wiki/Frost_heaving" title="Frost heaving">Frost heaving</a></li> <li><a href="/wiki/Consolidation_(soil)" class="mw-redirect" title="Consolidation (soil)">Consolidation</a></li> <li><a href="/wiki/Soil_compaction" title="Soil compaction">Compaction</a></li> <li><a href="/wiki/Earthquake" title="Earthquake">Earthquake</a> <ul><li><a href="/wiki/Response_spectrum" title="Response spectrum">Response spectrum</a></li> <li><a href="/wiki/Seismic_hazard" title="Seismic hazard">Seismic hazard</a></li> <li><a href="/wiki/S_wave" title="S wave">Shear wave</a></li></ul></li> <li><a href="/wiki/Landslide" title="Landslide">Landslide</a> analysis <ul><li><a href="/wiki/Slope_stability_analysis" title="Slope stability analysis">Stability analysis</a></li> <li><a href="/wiki/Landslide_mitigation" title="Landslide mitigation">Mitigation</a></li> <li><a href="/wiki/Landslide_classification" title="Landslide classification">Classification</a></li> <li><a href="/wiki/Sliding_criterion_(geotechnical_engineering)" title="Sliding criterion (geotechnical engineering)">Sliding criterion</a></li> <li><a href="/wiki/Road#Slab_stabilization" title="Road">Slab stabilisation</a></li></ul></li> <li><a href="/wiki/Bearing_capacity" title="Bearing capacity">Bearing capacity</a> * <a href="/wiki/Stress_distribution_in_soil" title="Stress distribution in soil">Stress distribution in soil</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Software" title="Software">Numerical analysis <br />software</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SEEP2D" title="SEEP2D">SEEP2D</a></li> <li><a href="/w/index.php?title=STABL&action=edit&redlink=1" class="new" title="STABL (page does not exist)">STABL</a></li> <li><a href="/wiki/SVFlux" title="SVFlux">SVFlux</a></li> <li><a href="/wiki/SVSlope" title="SVSlope">SVSlope</a></li> <li><a href="/wiki/UTEXAS" title="UTEXAS">UTEXAS</a></li> <li><a href="/wiki/Plaxis" title="Plaxis">Plaxis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geoprofessions" title="Geoprofessions">Related fields</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div 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