Open AccessCALCIUM IN SOIL HUMUS OF WEST-SIBERIAN TRANSECT
Author(s) -
Б. М. Кленов,
M. V. Yakutin
Publication year - 2020
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2020-4-2-64-70
Subject(s) - humus , transect , calcium , soil water , environmental chemistry , soil science , chemistry , composition (language) , environmental science , ecology , biology , linguistics , philosophy , organic chemistry
The paper analyzes the behavior of one of the main components of humus (humic acids - calcium system) depending on the participation of calcium in the biological cycle of substances. The role of calcium in the formation of ecological stability of humic systems is shown, which largely determines the environmentally sustainable agriculture. It is shown that the changeable calcium amounts to no more than a half of its total content in humus horizon of automorphic zonal soils. Within the limits of the transect, the participation of calcium in binding of humic and fulvic acids is distributed according to their content in humus composition. Additional assessment of exchangeable calcium content to be determined by nontraditional method showed the same geographic regularity of its distribution in the soils of the transect as in the case of distribution of the main characteristics of humus.