eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-06-14 11 Spl.Edn.2 257 263 10.13005/bbra/1472 12403 article Yermolaev Oleg Petrovich 1 Ivanov Maxim Andreevich 1 Kazan Federal University, 420008, Kazan, Kremlevskaya str. 18, Russia. International Laboratory for Comparative Urban Research, Institute for the Comparative Studies of Modernity, Kazan Federal University The article presents the methodology of environmental assessment of the state of a river basin based on the landscape approach using geoinformation systems. This study implements the landscape approach to evaluation, when types of terrain, i.e. the natural geographical systems, act as the spatial-operational units, which ensures the objectivity of the obtained results. The main land use categories are used as the factor of anthropogenic pressures. With this purpose, a spatial database of the functional use of the studied territory, based on the results of a satellite image analysis, was created. https://www.biotech-asia.org/vol11_nospl_edn2/environmental-assessment-of-basin-geosystems-based-on-the-landscape-approach/ Environmental assessment; watershed; Anthropogenic pressures; landscapes; geoinformation systems; RSD