Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

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ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 11 (153) 2016

Биология и биотехнологии

Сандаков О. Н. аспирант Уральский государственный лесотехнический университет

УДК:630.421:630.187

THE SHARE OF BLOWDOWN STANDS IN GROWING STOCKS OF VARIOUS FORMATIONS AND FOREST TYPES GROUPS

 Thepaper touches upon the data of blowdown stands area in different formationstands of South Ural taiga. On the basis of the forest regulations materialsand route surveying on the territory of Bilimbayevsky and Shalinskiy forestdivisions (Sverdlovsk region forestry department) it has been established thatthe share of coniferous stocks constitutes 71.2 % of the whole territory of theblowdown stocks (7703.5 ha). The maximum blowdown stocks territory (4228.5 ha)is characteristic for spruce forest. However, the share of blowdown standsterritory in relation to their territory is higher than that of the larchstands. Thus, if the share of blowdown stands in deciduous stand constitutes4.63 % but in larch and spruce stands – only 2.13 and 2.05 % accordingly, stands ofmultifrass line forest type suffer from winds the most. The share of blowdownstands in the above-menhoned group of forest type reaches 92 % out of the wholesquare in coniferous stands and 92.1 % in deciduous. Blowdown stands do notoccur in highland forest type stands but their share in cowberry and sphagnumforest type does not exceed 0.6 % out of the entire blowdown stands squarefootage. The data on blowdown stands distribution according to forestformations and groups of forest types can be applied when projectingreforestation methods, in choosing the main wood species as well as in carryingout the measures to increase the stability of stands growing up.


Keywords:

Keywords: south Ural taiga subzone, hurricane wind, blowdown, windbreakage, forest formation, group of forest types.


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