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Bulgarian Journal of Soil Science, Agrochemistry and Ecology
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Soil Organic Matter Composition and Specific of Humification within Reddish Colored Soils from North-eastern Part of Sofia Plain
G. Dimitrov, E. Filcheva, M. Theoharov, T. Shishkov
Abstract: The paper deals with the humus system characteristics of the soils from intermountain valley of city of Sofia, distinguished by the reddish color and different development of aggregates stability. Four shallow soils and five deep soils are included in the study. The organic matter state is controlled by the processes provoked by the biological activities. Indirect this state is in relation with the local soil forming features. In the study were included soils formed on different parent rock materials occurred in the area with comparison between the humus systems characteristic: amount, distribution, composition and type.
Keywords: carbon; composition of organic matter; humic and fulvic acids; humus systems
Date published: 2017-03-07
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