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<!DOCTYPE html> <html > <head> <meta charset="utf-8"> <meta rel="search" type="application/opensearchdescription+xml" href="/open_search.xml" title="Academia.edu"> <meta content="width=device-width, initial-scale=1" name="viewport"> <meta name="google-site-verification" content="bKJMBZA7E43xhDOopFZkssMMkBRjvYERV-NaN4R6mrs"> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="SOteV5jqombJocvleuer7F71DOUaEj4SnRW1FRM1eUbi+O7jaz87BSr236ko58p1n8rof/6c1yJnWhMuj06wwA==" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:url" content="https://www.academia.edu/41340211/A_comparison_of_nitrogen_isotope_compositions_of_charred_and_desiccated_botanical_remains_from_northern_Peru" /> <meta name="twitter:title" content="A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru" /> <meta name="twitter:description" content="Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the" /> <meta name="twitter:image" content="https://0.academia-photos.com/152435/39959/3733831/s200_paul.szpak.jpg" /> <meta property="fb:app_id" content="2369844204" /> <meta property="og:type" content="article" /> <meta property="og:url" content="https://www.academia.edu/41340211/A_comparison_of_nitrogen_isotope_compositions_of_charred_and_desiccated_botanical_remains_from_northern_Peru" /> <meta property="og:title" content="A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru" /> <meta property="og:image" content="http://a.academia-assets.com/images/open-graph-icons/fb-paper.gif" /> <meta property="og:description" content="Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the" /> <meta property="article:author" content="https://trentu.academia.edu/PaulSzpak" /> <meta property="article:author" content="https://crimson.academia.edu/KatherineChiou" /> <meta name="description" content="Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the" /> <meta name="robots" content="noindex" /> <title>A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru | Paul Szpak and Katherine L Chiou - Academia.edu</title> <link rel="canonical" href="https://www.academia.edu/41340211/A_comparison_of_nitrogen_isotope_compositions_of_charred_and_desiccated_botanical_remains_from_northern_Peru" /> <script async src="https://www.googletagmanager.com/gtag/js?id=G-5VKX33P2DS"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-5VKX33P2DS', { cookie_domain: 'academia.edu', send_page_view: false, }); gtag('event', 'page_view', { 'controller': "single_work", 'action': "show", 'controller_action': 'single_work#show', 'logged_in': 'false', 'edge': 'unknown', // Send nil if there is no A/B test bucket, in case some records get logged // with missing data - that way we can distinguish between the two cases. // ab_test_bucket should be of the form <ab_test_name>:<bucket> 'ab_test_bucket': null, }) </script> <script> var $controller_name = 'single_work'; var $action_name = "show"; var $rails_env = 'production'; var $app_rev = 'b55351076b26328bd3ebb8c0edd1b35967bcfaed'; var $domain = 'academia.edu'; var $app_host = "academia.edu"; var $asset_host = "academia-assets.com"; var $start_time = new Date().getTime(); var $recaptcha_key = "6LdxlRMTAAAAADnu_zyLhLg0YF9uACwz78shpjJB"; var $recaptcha_invisible_key = "6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj"; var $disableClientRecordHit = false; </script> <script> window.require = { config: function() { return function() {} } } </script> <script> window.Aedu = window.Aedu || {}; window.Aedu.hit_data = null; window.Aedu.serverRenderTime = new Date(1732750980000); window.Aedu.timeDifference = new Date().getTime() - 1732750980000; </script> <script type="application/ld+json">{"@context":"https://schema.org","@type":"ScholarlyArticle","abstract":"Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the materials that are commonly preserved in the archaeological record and (2) the integrity of the isotopic compositions of archaeological plant remains that are uncharred or desiccated has been questioned, particularly for δ15N. By comparing charred and uncharred plant remains from two Late Moche (AD 600–800) sites in the Jequetepeque valley on the north coast of Peru—San José de Moro and Cerro Chepén—we sought to directly test the assumption that the isotopic compositions of desiccated plant remains are not representative of the isotopic compositions of the living plants. The average δ15N values of charred (+11.3 ± 4.4‰) and desiccated (+10.1 ± 5.1‰) remains from these two sites did not significantly differ from one another, suggesting that uncharred plant remains can produce reliable isotopic measurements under some circumstances. Furthermore, the relatively high δ15N values of the plant remains from these two sites are consistent with the ancient use of composted camelid manure as a fertilizer.","author":[{"@context":"https://schema.org","@type":"Person","name":"Paul Szpak"},{"@context":"https://schema.org","@type":"Person","name":"Katherine L Chiou"}],"contributor":[{"@context":"https://schema.org","@type":"Person","name":"Paul Szpak"}],"dateCreated":"2019-12-17","dateModified":null,"datePublished":"2019-01-01","headline":"A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru","inLanguage":"en","keywords":["Stable Isotope Analysis","Archaeobotany","Andean Archaeology","Paleoethnobotany","Taphonomy","Vegetation History and Archaeobotany"],"locationCreated":null,"publication":"Vegetation History and 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window.loswp.shouldShowBulkDownload = true; window.loswp.showSignupCaptcha = false window.loswp.willEdgeCache = false; window.loswp.work = {"work":{"id":41340211,"created_at":"2019-12-17T12:15:24.219-08:00","from_world_paper_id":null,"updated_at":"2021-01-13T20:26:16.016-08:00","_data":{"doi":"10.1007/s00334-019-00761-2","abstract":"Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the materials that are commonly preserved in the archaeological record and (2) the integrity of the isotopic compositions of archaeological plant remains that are uncharred or desiccated has been questioned, particularly for δ15N. By comparing charred and uncharred plant remains from two Late Moche (AD 600–800) sites in the Jequetepeque valley on the north coast of Peru—San José de Moro and Cerro Chepén—we sought to directly test the assumption that the isotopic compositions of desiccated plant remains are not representative of the isotopic compositions of the living plants. The average δ15N values of charred (+11.3 ± 4.4‰) and desiccated (+10.1 ± 5.1‰) remains from these two sites did not significantly differ from one another, suggesting that uncharred plant remains can produce reliable isotopic measurements under some circumstances. Furthermore, the relatively high δ15N values of the plant remains from these two sites are consistent with the ancient use of composted camelid manure as a fertilizer.","publication_date":"2019,,","publication_name":"Vegetation History and Archaeobotany"},"document_type":"other","pre_hit_view_count_baseline":null,"quality":"low","language":"en","title":"A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru","broadcastable":true,"draft":null,"has_indexable_attachment":false,"indexable":true}}["work"]; window.loswp.workCoauthors = [5890,152435]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "grid"; window.loswp.fullPageMobileSutdModalVariant = "full_page_mobile_sutd_modal"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="loswp-grid--container"><div data-auto_select="false" data-client_id="331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b" data-landing_url="https://www.academia.edu/41340211/A_comparison_of_nitrogen_isotope_compositions_of_charred_and_desiccated_botanical_remains_from_northern_Peru" data-login_uri="https://www.academia.edu/registrations/google_one_tap" data-moment_callback="onGoogleOneTapEvent" id="g_id_onload"></div><div class="above-fold js-swp-splash-above-fold"><div class="work-card--container js-swp-control-work-card" data-entity-id="41340211"><div class="work-cover--wrapper"><div class="work-cover--container"><div class="work-cover--no-attachment-container js-swp-splash-paper-cover"><div class="work-cover--file-icon-wrapper"><img alt="paper cover icon" src="//a.academia-assets.com/images/single_work_splash/adobe.icon.svg" /></div><div class="work-cover--title js-swp-splash-paper-cover-page-title">A comparison of nitrogen isotope compositions of charred and desiccated botanical remains from northern Peru</div><br /><div style="margin-top: 170px"><button class="work-cover--request-pdf-button js-request-pdf-button"><svg style="width: 14px; 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font-size: 14px;">Abstract</div><div class="work-card--abstract js-swp-splash-abstract">Isotopic measurements of plant remains from archaeological sites are now routinely used to reconstruct agricultural practices in the Old World. These studies use charred botanical remains as the analytical substrate because (1) these are the materials that are commonly preserved in the archaeological record and (2) the integrity of the isotopic compositions of archaeological plant remains that are uncharred or desiccated has been questioned, particularly for δ15N. By comparing charred and uncharred plant remains from two Late Moche (AD 600–800) sites in the Jequetepeque valley on the north coast of Peru—San José de Moro and Cerro Chepén—we sought to directly test the assumption that the isotopic compositions of desiccated plant remains are not representative of the isotopic compositions of the living plants. The average δ15N values of charred (+11.3 ± 4.4‰) and desiccated (+10.1 ± 5.1‰) remains from these two sites did not significantly differ from one another, suggesting that uncharred plant remains can produce reliable isotopic measurements under some circumstances. Furthermore, the relatively high δ15N values of the plant remains from these two sites are consistent with the ancient use of composted camelid manure as a fertilizer.</div></div><div class="request-upload--container"><p class="request-upload--title">Katherine L Chiou hasn't uploaded this document.</p><div class="request-upload--info-text"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="info-circle" class="request-upload--info-icon svg-inline--fa fa-info-circle fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"></path></svg><p class="no-margin hide-on-small-mobile">Let Katherine know you want this document to be uploaded.</p><p class="no-margin hide-above-small-mobile">Ask for this document to be uploaded.</p></div><button class="work-cover--request-pdf-button small js-request-pdf-button hide-on-desktop"><svg style="width: 14px; 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