LANDSCAPE STRUCTURE KHEMCHIKSKY BASIN (WESTERN TYVA)
The spatial and morphological structure of landscapes Khemchiksky basin made with the use of GIS. The regularities of the spatial distribution of the main groups of landscapes, showing differences in the complexity of their landscape drawings, certain hydro-climatic conditions and high zone. Noting that the largest share in the landscape structure of the territory belongs to its middle geosystems (45,41 %) and represent erosion and denudation of natural-territorial complexes. In order smaller share belongs exaration and erosion-denudation highland (32,11 %), and least represented steppe-intermountain basins (22,48 %). The analysis showed that depression Khemchiksky landscapes characterized by a predominance of larch forests in the mid-mountain zone, which in turn marked as geosystems with a high diversity and complexity of the spatial structure of the resulting terrain feature, and associated differences in exposition. In general, the diversity of landscapes of the basin involved South Siberian (taiga, forest-steppe, steppe) and the Central Asian groups Geom.