Specific Features of Chestnut Soils in the Southern Basins of Siberia
| Autor: | G. D. Chimitdorzhieva, E. V. Tsybikova |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Global and Planetary Change Ecology Global warming Soil Science 04 agricultural and veterinary sciences 010501 environmental sciences complex mixtures 01 natural sciences Humus chemistry Agronomy Long period Grazing Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Humic acid Environmental science Soil horizon Arable land Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Arid Ecosystems. 8:254-259 |
| ISSN: | 2079-0988 2079-0961 |
| DOI: | 10.1134/s2079096118040030 |
| Popis: | A long period of freezing and drying of the soil profile and frequent seasonal and daily temperature fluctuations lead to the formation of chestnut soils featuring slightly condensed and developed aliphatic humic acid (HA) chains, which makes the soils unstable. The current environmental condition of chestnut soils confirms this; the area of degraded arable and grazing lands in the Republic of Buryatia is significant. Their location in intermountain basins often results in a high vulnerability to deflation processes, leading to dehumification. This adverse phenomenon is currently amplified by global climate change, which intensifies the aridization rates. The noted complex of factors determines the specific composition of regional phytocoenoses, which are highly ligninoficated and depleted of protein components; this affects the structure of humic substances and determines the number of specific features of the local humus, which is distinct from that in similar soils of other regions. |
| Databáze: | OpenAIRE |
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