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Majority of the eastern half of Siberia is covered with forests of larch species. The forests are also growing mostly on continuous permafrost. However, the natural environment is quite different in the rest of the northern hemisphere. Tundra or arctic desert is virtually the only biome-type where the continuous permafrost predominates. Therefore, a biome of extensive forests over permafrost has never...
Floristic diversity has been investigated in different latitudinal zones of Central Siberia. The area of focus in the present analysis stretches about 2,900 km from Karskoe Sea, at 77°41′N latitude, to the southern Russian state border, at 49°45′N. In terms of longitude, the area stretches approximately 2,075 km from the Yenisey River, at 82°E, to the Lena River, at 130°E. Total area makes up about...
Species of the genus Larix Mill. are the most abundant trees in Russian Federation. Some 263.2 million ha are occupied by forests where the larch dominate, constituting 36.6% of the whole forest area of the country (Forest Fund of Russia 1999). Vast areas of larch forests are concentrated in Siberia. Having very high adaptability, Siberian larch species (Larix sibirica Ledeb., L. gmelinii (Rupr) Rupr...
Climatic conditions are ecologically the most important factors influencing the differentiation and character of the vegetation cover at a global scale (Archibold 1995). In particular, fluctuations in climate and weather during drought periods affect vegetation both directly and indirectly through factors such as those related to forest fires. Characteristics of permafrost and vegetation vary...
Fire is the dominant form of disturbance in boreal forests (Wein and MacLean 1983; Van Cleve et al. 1986; Payette 1992; Rees and Juday 2002). In the Siberian cryolithic zone, ground fires are predominant among the disturbance factors; about 1.5% of the total forested area is damaged annually by wild fires (Sofronov et al. 1998). Fire frequency of northern taiga forests varies between once every 20-200...
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