Humus status of buried soils in loess deposits of the Minusinsk intermontane trough
Abstract
The study of the humus status of the buried soil sequence in loess deposits of the Minusinsk intermontane trough revealed that the group humus composition and humus properties of the buried soils did not undergo considerable changes and preserved their initial parameters upon the burial under the conditions of low biological activity. Neither the group humans composition nor the humus substance properties fell beyond the limits typical of the humus status of recent soils. The fractional composition of the humus acids might undergo secondary alternations after the burial. The dependence between the humus type and the length of the biological activity period permitted us to make a paleoclimatic reconstruction of the bioclimatic conditions that might have existed during the formation of the loess deposits in the Minusinsk intermontane trough. It was shown that the soil-climatic zones were repeatedly alternating during the Quaternary period due to the global climate change.
- Publication:
-
Eurasian Soil Science
- Pub Date:
- May 2008
- DOI:
- 10.1134/S1064229308050025
- Bibcode:
- 2008EurSS..41..471B
- Keywords:
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- Humic Acid;
- EURASIAN Soil Science;
- Humus Horizon;
- Gray Forest Soil;
- Taiga Zone