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Effects of long-term medieval agriculture on soil properties:A case study from the Kislovodsk basin,Northern Caucasus,Russia

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Journal of Mountain Science 2018年第6期15卷 1171-1185页

作者： chernysheva elena KHOMUTOVA Tatiana FORNASIER Flavio KUZNETSOVA Tatiana BORISOV Alexandr Institute of Physicochemical and Biological Problems in Soil Science Russian Academy of Sciences Institutskaya 14229o Pushchino Moscow region Russia 2 CREA - VE Consiglio per la ricerca in Agricoltura e rAnalisi della Economia Agraria Centro di Ricerea Viticoltura ed Enologia Via Trieste 23 34170 Gorizia Italy

The chemical properties and biological activities of soils were studied in the vicinity of the medieval settlement Podkumskoe-3 in the Kislovodsk basin(Northern Caucasus, Russia). Between the 5 th and 8 th centuries this area was ploughed regularly, but it was then abandoned up to the present day. It has been established that past human activity leads to soil undergoing significant transformations in terms of microbial communities and enzyme activity, and that such changes are maintained over long periods. Long-term manuring in the middle of the first millennium AD led to an increase in organic carbon content and the accumulation of nitrate nitrogen. Soils of ancient abandoned fields are associated with increases in microbial biomass, number of saprotrophic bacteria, urease activity, and fungal mycelium biomass. The observed changes in the microbiological and biochemical properties of soil were conditioned by secondary anthropogenically induced succession after the abandonment of arable lands.

关键词： Anthropogenic soils Manuring Enzymeactivity Microbial biomass North Caucasus MiddleAges

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