CALCIUM IN SOIL HUMUS OF WEST-SIBERIAN TRANSECT
| Autor: | Mikhail V. Yakutin, Boris M. Klenov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Soil humus
chemistry.chemical_element 04 agricultural and veterinary sciences 010501 environmental sciences Calcium complex mixtures 01 natural sciences chemistry Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Transect 0105 earth and related environmental sciences |
| Zdroj: | Interexpo GEO-Siberia. 4:64-70 |
| ISSN: | 2618-981X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|