{"title":"The Investigation of Enzymatic Activity in the Soils under the Impact of Metallurgical Industrial Activity in Lori Marz, Armenia","authors":"T. H. Derdzyan, K. A. Ghazaryan, G. A. Gevorgyan","volume":101,"journal":"International Journal of Environmental and Ecological Engineering","pagesStart":439,"pagesEnd":443,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10001074","abstract":"<p>Beta-glucosidase, chitinase, leucine-aminopeptidase, acid phosphomonoesterase and acetate-esterase enzyme activities in<br \/>\r\nthe soils under the impact of metallurgical industrial activity in Lori<br \/>\r\nmarz (district) were investigated. The results of the study showed that<br \/>\r\nthe activities of the investigated enzymes in the soils decreased with increasing distance from the Shamlugh copper mine, the Chochkan<br \/>\r\ntailings storage facility and the ore transportation road. Statistical<br \/>\r\nanalysis revealed that the activities of the enzymes were positively<br \/>\r\ncorrelated (significant) to each other according to the observation<br \/>\r\nsites which indicated that enzyme activities were affected by the<br \/>\r\nsame anthropogenic factor. The investigations showed that the soils<br \/>\r\nwere polluted with heavy metals (Cu, Pb, As, Co, Ni, Zn) due to<br \/>\r\ncopper mining activity in this territory. The results of Pearson<br \/>\r\ncorrelation analysis revealed a significant negative correlation<br \/>\r\nbetween heavy metal pollution degree (Nemerow integrated pollution<br \/>\r\nindex) and soil enzyme activity. All of this indicated that copper<br \/>\r\nmining activity in this territory causing the heavy metal pollution of<br \/>\r\nthe soils resulted in the inhabitation of the activities of the enzymes<br \/>\r\nwhich are considered as biological catalysts to decompose organic<br \/>\r\nmaterials and facilitate the cycling of nutrients.<\/p>\r\n","references":"[1] S. Kumar, S. Chaudhuri, S. K. Maiti, \u201cSoil dehydrogenase activity in\r\nnatural and mine soil \u2013 A review,\u201d Middle-East Journal of Scientific\r\nResearch, vol. 13, no. 7, pp. 898\u2013906, 2013.\r\n[2] B. A. Caldwell, \u201cEnzyme activities as a component of soil biodiversity:\r\nA review,\u201d Pedobiologia, vol. 49, pp. 637 \u2013 644, 2005.\r\n[3] D. Effron, A. M. de la Horra, R. L. Defrieri, V. Fontanive, P. M. 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