Dynamics of channel network extention of elementary water currents of the mixed coniferous and broad-leaved woods zone in the 21st century (by the example of a catchment basin of the veletma river of the Nizhny Novgorod region)
The article contains the results of studying of dynamics of extent of channel network of elementary water currents in a zone of the mixed coniferous and broad-leaved woods within the Nizhny Novgorod Region (a catchment basin of the Veletma River) in the 21st century. The research is based on materials of the forwarding researches conducted during the summer period of 2018 and the GIS-analysis of data of remote sensing of Earth during the period from 2001 to 2018. Based on the results of the study, the current locations of the sources of elementary watercourses in the Veletma river catchment area of the Nizhny Novgorod region are determined, the dynamics of elementary watercourses relative to 2001 is calculated. The fact of significant reduction of extent of channel network of elementary water currents is established and strong dependence between woodiness of the territory and extent of channel network of elementary water currents is revealed.