Russian Journal of Ecology
The results of studies on postfire succession in larch forests of the permafrost zone are discussed. The main directions of successional processes in burned-out areas of different ages are described. It has been shown that secondary pyrogenic successions in larch forests follow the scheme of rapid regeneration without tree species replacement and t...
Contemporary Problems of Ecology
The peculiarities of organic carbon water soluble fraction content in the litters and soil profile in burned forests of different age under the cryolithozone conditions have been revealed. It has been shown that surface fires cause a decrease in the content of water-extractable organic carbon (WEOC) in the litters and upper 5 cm deep layer of soil....
Russian Journal of Pacific Geology
The significant role of the drainage area’s geological background in the formation of the groundwater runoff in the active water-exchange zone was revealed for the first time on the basis of long-term observations of streams of the Upper Kolyma River region during the autumn-winter low-water period, when the rivers are fed only by the groundwater r...
Power Technology and Engineering
Quantitative data derived from observations of reformation of the thermoabrasive banks of the Viliyui Reservoir in Yakutia during the service period from 1972 through 2011, and results of analytical prediction of bank formations over the next 20 years for purposes of monitoring the ecological safety of this water body are presented.
Chemistry of Natural Compounds
Fatty-acid (FA) compositions of total lipids from the aerial parts of two newly studied horsetail species, Equisetum scirpoides and E. arvense, and the refined FA composition of E. variegatum growing under the distinctly continental climatic conditions of Yakutia were compared. All three species were shown to be 16:3-type plants according to the co...
Eurasian Soil Science
Detailed study of a peat plateau near the southern boundary of the East European permafrost zone has been performed. The botanical and palynological compositions of the peat to the depth of 10 m, its radiocarbon dates (the AMS method), and its physical and chemical characteristics have been determined. The accumulation of peat in this area began ab...
Moscow University Soil Science Bulletin
In the discontinuous cryolithozone in the north of Western Siberia in forest and tundra biogeocoenoses, two field methods for individual determination of root and microbial soil respiration were tested: plant shading and root exclusion (comparison of the plots with vegetation and without it). The proportion of of root respiration in the total soil ...
Herald of the Russian Academy of Sciences
AbstractThe article discusses the impact of global climate change on the components of the natural environment of the permafrost zone (e.g.., the center of the continental cryolithozone of the Northern Hemisphere). These changes have significantly intensified the dynamics of the climate parameters of the region: the average annual air temperatures,...
Abstract—The major and trace element compositions of stratified frozen peatlands in the forest–tundra of Northeastern European Russia were determined for the first time. The upper level of trace element accumulation was confined to the active (seasonally thawed) layer owing to airborne contamination over a long time span and related to the bioaccum...
Russian Journal of Plant Physiology
AbstractThe composition of lipids and fatty acids (FAs) and changes in their content in needles of summer- and autumn-vegetating conifer trees growing in the cryolithozone of Yakutia have been studied by thin-layer and gas-liquid chromatography–mass spectrometry. A comparative analysis of the content of total lipids (TL) and phospholipids (PL) has ...