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Abstract

The role of biota as a natural resource for the restoration of degraded chernozems of the Republic of Moldova is under discussion till nowadays. The status of biota of old-arable chernozems in conditions of the green manure applications has been evaluated statistically. Two experimental sites located in the central and southern zone of the Republic of Moldova have been tested by soil biological indicators during 2010-2012. The application of vetch as a green manure had created conditions for the improvement of the biota’s vital activity in chernozems which had been degraded as a result of a long-term arable use. The number of invertebrates increased from 48.1-55.0 to 71.6 - 78.0 exm-2, the number of Lumbricidae family – from 25.6-38.0 to 43.3-68.0 ex m-2. The effect of green manure was manifestedin the increase of share of Lumbricidae family in the total number of invertebrates by 12.1-20.8 %. The microbialbiomass content in the arable layer of soils rose up in average by 1.4-1.5 times. The humification processes intensified as a result of the interaction between the fresh organic matter and the soil biota. Biological parameters did not reach the level of soils under natural vegetation. Management with the green manuring for the biota’s restoration of degraded soils and for the improvement of soil quality and environment has been recommended.



Item Type: MPRA Paper -

Original Title: Soil biota as a natural resource for the restoration of degraded chernozems-

English Title: Soil biota as a natural resource for the restoration of degraded chernozems-

Language: English-

Keywords: soil biota, green manure, degraded chernozem-

Subjects: O - Economic Development, Innovation, Technological Change, and Growth > O1 - Economic Development > O13 - Agriculture ; Natural Resources ; Energy ; Environment ; Other Primary ProductsO - Economic Development, Innovation, Technological Change, and Growth > O4 - Economic Growth and Aggregate Productivity > O44 - Environment and GrowthO - Economic Development, Innovation, Technological Change, and Growth > O5 - Economywide Country Studies > O50 - GeneralQ - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q2 - Renewable Resources and Conservation > Q24 - Land-





Autor: Senicovscaia, Irina

Fuente: https://mpra.ub.uni-muenchen.de/61749/







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