期刊
RUSSIAN JOURNAL OF ECOLOGY
卷 39, 期 3, 页码 151-159出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1067413608030016
关键词
dissolved organic matter; larch biogeocenoses; drainage basin; permafrost; creek; export
类别
Fluxes of dissolved organic matter (DOM) in larch biogeocenoses and its export from the drainage basin have been studied in the zone of continuous permafrost. A comparative assessment of DOM input into the soil has been made on slopes of northern and southern exposures (as variants reflecting the current state and warming). The dynamics of DOM export in a creek depending on the increasing depth of the active soil horizon in the drainage area have been revealed. It is concluded that an increase in the depth of the seasonally thawing layer induced by global warming will not have any significant effect on the amount of annual DOM export. Reduction of DOM export may be expected upon a decrease in litter stocks under the effect of their mineralization and forest fires.
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