Humus and humic acids in chernozems of the southeastern Transbaikal region (Chita Oblast)

Humic acids (HAs) in the noncalcareous chernozems developed from the colluvium of argillites and chlorite schist are characterized by a predominance of the first, relatively mobile fraction (HA-1) and a lower content of the second (HA-2) fraction. Modern nondestructive physicochemical methods for st...

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Published inEurasian soil science Vol. 41; no. 2; pp. 149 - 153
Main Authors Chimitdorzhieva, G D, Ayurova, D B, Andreeva, D B
Format Journal Article
LanguageEnglish
Published Silver Spring Springer Nature B.V 01.02.2008
Subjects
Decomposing organic matter
Geochemistry
Humic acids
Humus
Intensive farming
Soil sciences
Wind erosion
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Summary:Humic acids (HAs) in the noncalcareous chernozems developed from the colluvium of argillites and chlorite schist are characterized by a predominance of the first, relatively mobile fraction (HA-1) and a lower content of the second (HA-2) fraction. Modern nondestructive physicochemical methods for studying the chemical structure of HA macromolecules have shown that the Has in the virgin soils have approximately equal portions of aromatic and aliphatic groups. In the plowed soils, the portion of aromatic carbon increases under the impact of the intensive agricultural use of these soils and their susceptibility to wind erosion. [PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1064-2293
1556-195X
DOI:10.1007/s11475-008-2005-2