Assessment of anthropogenic impact on water objects of the Selenga transboundary river basin (the Russian part)

The integrated estimation of the ecological condition of the Selenga river basin in the Russian part is presented in the article. This estimation has been done on the basis of factors analysis of direct and indirect impact on water objects. The factors of direct influence are based on indicators of water withdrawal for needs of housing and communal services, industry, agriculture, etc. and discharge of sewage waters, and factors of indirect influence, on the basis of indicators of the area and linearly-network influence on the water catchment area, such as number and population density, agricultural production structure, volumes of the industrial and agricultural production etc. The used indicators of the indirect estimation of influence were grouped according to the kinds of anthropogenic influences. The obtained results of the factors analysis of the direct influence on the water objects have revealed that the water objects of the most economically developed water-resource region suffer high anthropogenic impact that also is confirmed by the analysis of indirect influence factors.