Abstract
The distribution boundaries of light-coniferous and deciduous forests formed by larch (Larix cajanderi Mayr), stone-birch (Betula ermanii Cham.), white birch (Betula platyphylla Sukacz.), poplar (Populus suaveolens Fisch.), chosenia (Chosenia arbutifolia (Pall.) A Skvorts.), alder (Alnus hirsute (Spach) Turcz. ex Rupr.) and willow trees (Salix udensis Trautv. et C.A. Mey., S. schwerinii E.L. Wolf), as well as elfin wood communities formed by Siberian dwarf-pine (Pinus pumila (Pall.) Rgl.), dwarf-alder (Alnus fruticosa Rupr.), and dwarf-birch (Betula middendorffii) have been clarified for the North of the Koryak Region. The remote sensing data, aerial photographs, original relevés and itinerary research data were used for small-scale forest vegetation mapping. A map of forests and elfin woods allocation in the mainland part of the Koryak Region was compiled. With the help of this map, the boundaries of the new geobotanical subdivision of the North of Koryak Region will be clarified and the most important phytogeographical boundaries within the Beringian forest-tundra zone will be determined.
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