STUDY OF THE LANDSCAPE STRUCTURE OF PRIOLKHONYE
V.M. PLYUSNIN, I.N. BILICHENKO, S.A. SEDYKH
V.B. Sochava Institute of Geography, Siberian Branch, Russian Academy of Sciences, 664033, Irkutsk, ul. Ulan-Batorskaya, 1, Russia plyusnin@irigs.irk.ru
Keywords: Priolkhonye, Primorskii Range, landscape structure, field work, mountain geosystems, mountain steppe, diversity of geosystems
Abstract
Presented are the results from investigating the geosystems in the northern part of Primorskii Range and Priolkhonskoe Plateau which are being intensely used for recreational purposes. In studying the landscapes, we examined the regional regu larities, the climate and topography characteristics, vegetation, and the specific features in current use of the territory. The in vestigations were made in the northern part along the watershed divides and on the eastern macroslope of Primorskii Range and on Priolkhonskoe Plateau. More than 500 detailed field descriptions were prepared in four key areas. The study territory is characterized by a close interpenetration of taiga and steppe geosystems represented by a combination of mountain-taiga dark-coniferous and, more often, light-coniferous piedmont larch steppizated and mountain-steppe geosystems. This explains the landscape diversity of the study territory. The main factor of disturbances to the geosystems on Primorskii Range is represented by fires which were recorded in the four areas, and by an active tourism development on Olkhonskoe Plateau.
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