Fesyuk V. Structural-geographical background of formation and development of urboecosystems in north-west of Ukraine.

Theoretical background is defined and substantiated, concept of structural and geographical investigations of urban ecosystems based on system approach is developed. Algorithmic model of structural and geographic as well as geoecological analysis of environment of cities and the algorithm of implementation of sustainable optimization of environmental condition of cities is propounded. Peculiarities of city formation of this region against other regions are determined. Landscape structure of the territory and its impact on urban ecosystem formation, peculiarities of man's impact as the factor of ecosystem formation from the position of functional and structural, historical and genetic approach are analyzed.