Information on the thesis

Theoretical and methodological approaches to the study of systemic basin systems and
their  changes,  especially  under  the  influence  of  anthropogenic  factors  are  analyzed  in
dissertation. Considered present state of the basins’ nature management problems studies,
proved the feasibility of using keys and catena method in research and algorithm of the
historical and geographical analysis, determined the dominant role of water factor in basin
formation. Accomplished componentwise analysis of the r. Styr basin’s environment using
modern GIS technology, with the construction of a series of transverse (by key points) and
longitudinal  profiles and  thematic  maps,  features  of  the  settlement  areas  and  traditional
forms of nature management and impact of current economic activity on the  basin’s state
are shown. The concept of water factor and its components, features of spatial-temporal
dynamics of rainfall, surface and ground water are highlighted, found the closeness of the
relationship between the components of the water factor, also found indicative role of the
surface  water’s  chemical  composition.  The  complex  evaluation  of  the  r.  Styr  basin’s
surface water quality and integrated assessment of indicators of natural and anthropogenic
basin’s  complexes  is  accomplished,  held  zoning,  on  the  quality  of  surface  water  and
anthropogenic transformations are proposed to optimize environmental management in the
basin system.
Key words: basin system, water factor, the chemistry of surface water, water quality,
level of anthropogenic transformation, optimization of natural resources.