Interaction of heavy metals with the organic matter of an ordinary chernozem |
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Authors: | T. M. Minkina G. V. Motuzova O. G. Nazarenko |
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Affiliation: | (1) Department of Biology and Soil Science, Rostov State University, ul. Bolshaya Sadovaya 105, Rostov-on-Don, 344006, Russia;(2) Faculty of Soil Science, Moscow State University, Leninskie gory, Moscow, 119992, Russia;(3) Agroecological Faculty, Don State Agrarian University, Persianovskii, Rostov-on-Don oblast, 346493, Russia |
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Abstract: | Lead, copper, and zinc interacted with the soil organic matter when applied to an ordinary chernozem in a pot experiment. Two years after the treatment, an appreciable part of the metals applied was found in the organic substances, predominantly in a loosely bound state. These organic substances were supposed to be organomineral complexes, the formation of which resulted in the partial destruction of humic acid molecules. These processes increased the content of aliphatic structures and the share of fulvic acids and decreased the content of humic acids in the organic matter of the chernozem. |
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