Ecological and geomorphological research of Basandaika River basin(Tomsk Region)

Nowadays, the state and international policies are aimed at searching for ways of solving global and regionalecological problems. Active ecologization of public, philosophical, technical and natural sciences is done. Ecological andgeomorphological research, making ecological and geomorphological maps make it possible to estimate morphometrical andmorphodynamic relief indices (data), evaluate the type and amount of danger in the development of natural and anthropogenic, andanthropogenic geomorphological processes. The study of the relief morphometry peculiarities is topical. It should be noted that itprovides additional insight into soil formation processes, hydrological regime, directions of geochemical streams, vegetationdistribution, functions and landscape dynamics. Analysis of the maps of vertical and horizontal relief division, steepness and slopesexposition allows to estimate the conditions of the origin and development of unfavourable geomorphological processes. The aim of thecurrent research is to create and analyse the basic morphometrical maps as an integral component of ecological, geomorphological, andlandscape ecological research. The object of the studies is the Basandaika River as one of the most developed areas, within which bigsettlements, vast plowing fields and personal garden plots are located. The work resulted in analysing the development of dangerousnatural processes in the area under study made by the maps showing the horizontal and vertical relief division, exposition and steepnessof slopes. The analysis was made using the maps of the horizontal and vertical relief division, exposition and steepness of slopes. Thefollowing conclusions have been made: 1. The overall horizontal relief division (by rivers, gorges) changes from 0.7 to 1.3 km/km2 andincreases towards the Basandaika River source up to 2 km/km2. The values of horizontal division from 1 to 1.5 km/km2 (56 % of thearea under investigation) prevail in the river basin. Gorges form the basis of the horizontal territory division. 2. The vertical reliefdivision is significant. The values of 30-40 m (65% of the investigated area) are prevalent but there are territories with the relativeelevation of up to 100 m. Maximum vertical division values can be observed near the Basandaika River mouth towards its source. In theeastern part of the basin the vertical division decreases and varies from few up to 20 metres. 3. Slope steepness in the zone under studyranges from 0 to 25°. The slopes with the steepness from 0 to 7° are regarded as dominant ones. The highest slope steepness is observedin the riverside areas of watershed plains especially along the right bank of the Basandaika River. 4. Within the basin slopes of differentdegree of steepness are ploughed. They are characterized by a great amount of erosion danger. In the process of the territorial economicactivity favourable conditions to develop dangerous geomorphological processes as well as plain and ravine erosion are created.

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