Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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REFORESTATION OF THE LARCH AT THE NORTHERN LIMIT OF DISTRIBUTION IN ARY-MAS FOREST ISLAND, TAIMYR PENINSULA

Rudinsky M.G. 1
1 Siberian Institute of Plant Physiology and Biochemistry SB RAS
Dendrochronological studies were conducted in polar forests of Ary-Mas forest (Taimyr Peninsula). We have identified two waves of mass regeneration of Dahurian larch in the mid-1950s and the first half of the 1980s. In the dynamics of tree ring greatest imprint left the first period. Until the mid -1950s highest growth stands were characterized by woodlands and from the second half of the 1950s before present maximum increase is observed in the forests. The most likely reason for this was the increase in capacity of the snow cover in the forests. Over the past 50-60 years has been stable thermal regime but there was a significant increase of precipitation especially in the winter mostly in forests. Later destruction of snow cover and a thermal insulating effect of moss cover in these habitats have led to decreased production of larch forests.