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

Autor:	D. B. Andreeva, G. D. Chimitdorzhieva, D. B. Ayurova
Rok vydání:	2008
Předmět:	Schist Soil Science chemistry.chemical_element Soil science Humus chemistry.chemical_compound chemistry Environmental chemistry Soil water Aeolian processes Chlorite Carbon Geology Earth-Surface Processes Colluvium
Zdroj:	Eurasian Soil Science. 41:149-153
ISSN:	1556-195X 1064-2293
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e7f65c579d0246beb04cefd048e03ef1 https://doi.org/10.1134/s1064229308020051 Zobrazit plný text záznamu Full text from SpringerLink