Assessing the humus status and CO2 production in soils of anthropogenic and agrogenic landscapes in southern regions of the Russian Far East
- Autores: Purtova L.1, Kostenkov N.1, Shchapova L.1
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Afiliações:
- Institute of Biology and Soil Science, Far Eastern Branch
- Edição: Volume 50, Nº 1 (2017)
- Páginas: 42-48
- Seção: Soil Chemistry
- URL: https://journals.rcsi.science/1064-2293/article/view/223839
- DOI: https://doi.org/10.1134/S1064229317010124
- ID: 223839
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Resumo
The humus status and CO2 production have been assessed in soils of natural and anthropogenic landscapes in southern regions of the Far East with different types of redox conditions. A higher production of CO2 is typical of burozems and soddy-eluvial-metamorphic soils with oxidative and contrast redox conditions. These are soils with medium or high humus content, high potential humification capacity, and medium enrichment with catalase. A decrease in the content of humus in the plow horizons of soils in agrogenic landscapes is revealed compared to their natural analogues. The studied soils mainly have humus of the fulvate–humate type. The fractions strongly bound to the mineral soil component prevail in humic acids. In waterlogged mucky-humus gley soils, the anaerobic conditions hamper the biological activity and transformation of organic matter, which favors its accumulation. A low production of CO2 is observed in soils with reducing conditions. To determine the differences between the CO2 emission parameters in soils of agrogenic and natural landscapes, monitoring studies should be extended.
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Sobre autores
L. Purtova
Institute of Biology and Soil Science, Far Eastern Branch
Autor responsável pela correspondência
Email: Purtova@ibss.dvo.ru
Rússia, Vladivostok, 690022
N. Kostenkov
Institute of Biology and Soil Science, Far Eastern Branch
Email: Purtova@ibss.dvo.ru
Rússia, Vladivostok, 690022
L. Shchapova
Institute of Biology and Soil Science, Far Eastern Branch
Email: Purtova@ibss.dvo.ru
Rússia, Vladivostok, 690022