Organic Сarbon and Its Water-Soluble Fraction Content in Soils of Post-Fire Larch Associations of Central Evenkia
I. V. Tokareva, A. S. Prokushkin, V. V. Bogdanov
V. N. Sukachev Institute of Forest SB RAS
gavrilenko@ksc.krasn.ru, gavrilenko@ksc.krasn.ru, gavrilenko@ksc.krasn.ru
Keywords: water-extractable organic carbon, permafrost, ground fire, organic matter, forest litter, soil
Pages: 625-632
Abstract
Fire influence on the water-extractable organic carbon (WEOC) content in litters and soil profile of post-fire associations under the conditions of permafrost soil of different ages (1, 11, 15, 24, and 54 years) was studied. It was shown that the ground fires cause significant decrease in the content of water-soluble fraction of organic matter in litters and top 5 cm layer of soil in mounds, which most strongly experience the action of fire. In deeper soil horizons, the differences in WEOC content between intact stands and post-fire areas were not detected.
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