Change of Heavy Metals Speciation in Soil-Vegetation Cover After a Forest Fire
B. L. SHCHERBOV, E. V. LAZAREVA, V. V. BUDASHKINA, I. N. MYAGKAIA, I. S. ZHURKOVA
a:2:{s:4:"TEXT";s:87:"Institute of Geology and Mineralogy SB RAS, 630090, Novosibirsk, Acad. Koptyugа ave., 3";s:4:"TYPE";s:4:"text";}
Keywords: forest fires, migration, heavy metals, speciation
Abstract
Forest fires are the cause of migration of many chemical compounds and elements, among which a separate role, in regard to ecology, belongs to heavy metals. Many of them (Hg, Cd, Pb and others) actively migrate together with smoke plumes. In some cases, atmospheric emissions may reach to 50 % of their initial content in combustible forest materials. The processes of combustion, removal and deposition of chemical elements in new places are accompanied by a rise of bioavailable speciation, which reflects in the change of biochemical indices of soil-vegetation cover after fires.
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