Influence of the Fires and Clearing on the Ecological Factors for Natural Regeneration of the Forest
Y. N. Ilyichev1, L. A. Ignat'ev2, S. Y. Artymuk2
1 West Siberian Branch of the V. N. Sukachev Institute of Forest SB RAS
2 Institute of Soil Science and Agrochemistry SB RAS
tarhan8@mail.ru
Keywords: forest fire, clear felling, soil ecological factors, reforestation
Pages: 861-869
Abstract
The influence of fire events and forest cutting on the soil and ecological factors of reforestation in the pine forests of the Middle territory of the Ob basin was studied. It was revealed that potassium content increased, pH shifted toward the neutral values, humus (detritus) content decreased in the upper layer of the sod-podzol soil of cutover patches. The fell trussing after fire caused some increase in the temperature of the upper soil horizons, while the temperature of over-soil air increased by a factor of 1,5-2. Sometimes temperature reached the critical level for the emerging seedlings causing their death. The humidity of the upper soil level increased with respect to the reference up to 10 %. In general, the ecological factors on forest cuttings correspond to the conditions of natural reforestation.
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