The article contains the results of researching of the dynamics of the length of the channel network of elementary watercourses within the territory of the catchment basin of the Logovezh river in the XXI century. The researched territory is located in the Upper Volga basin in the zone of mixed coniferous-deciduous forests and characterized by high forest cover and swampiness. The research is based on the materials of the expedition work, carried out in the summer of 2021, the data of thematic maps and literary sources, processed using GIS. As a result of field researchs, the current position of the sources of elementary watercourses has been established, the indicator of the change in the length of their channels in the XXI century has been calculated. The fact of both increasing and reducing the length of the channel network of elementary watercourses with the predominance of their reduction processes has been established. Against the background of the restoration of the landscapes of the researched territory, there is a partial increase in the length of the channel network of elementary watercourses.

The article presents the results of landscape differentiation of the territory of the state nature complex reserve “Ichalkovsky Bor” (Nizhny Novgorod region), performed at the hierarchical level of landscapes and stows. The research territory lies in the forest-steppe zone, and characterized by a rugged karst topography relief, high biological diversity, which determined its complicated landscape structure and great environmental and recreational importance. In 2020 it was decided to organize a geopark, based on the state nature complex reserve Ichalkovsky Bor. All these circumstances determine the high demand for the landscape zoning scheme, which is necessary for the effective organization of environmental and recreational activities. In the course of the research, 4 landscapes were identified, which included 33 kinds of stows. The work was carried out on the basis of field researches, conducted in 2015-2020, materials of remote sensing of the Earth, thematic maps, literature data, processed using GIS.

The article presents the results of landscape differentiation of the territory of the Voskresensky district of the Nizhny Novgorod region. The territory of the Voskresensky district, which has high indicators of tourist and recreational potential, needs to be considered from the perspective of landscape zoning. The research established boundaries and described 11 landscapes, as well as a landscape map of the territory of the Voskresensky district.

The article presents the results of research of lakes of the city district of Dzerzhinsk city, located in the Western part of the Nizhny Novgorod region, in the lowland Oka-Volga interfluve. The research was conducted in 2017-19 to research the largest lakes within the city district. Based on the results of the work, bathymetric maps of lakes were created, it’s main morphometric and hydrological characteristics were determined. On the basis of the received data hypotheses of the origin of lakes are put forward.

The article provides a brief overview of the history of researching of the lakes of the Nizhny Novgorod region. The research area is located in the west of the Nizhny Novgorod region, and characterized by extremely poor knowledge of the main characteristics, origin and development of lakes. The exploration of morphometric and hydrological characteristics of lakes is solved by instrumental measurements in the field. Consideration of the genesis and evolution of lakes is a more complex issue, and its solution without taking into account the landscape structure of the territory and the specifics of the geological structure, geomorphological, botanical and other characteristics of the host landscape cannot be accepted as a complete logical work. In this article, along with the morphometric and hydrological features of the researched lakes, the modern physico-geographical characteristics of the researched territory are presented, based on the results of the analysis of thematic maps, remote sensing data, statistical and literary data and field researches. Bathygraphic schemes of seven largest and most typical lakes, located on the terraces above the floodplain of the Oka River Valley within the Nizhny Novgorod Region, created, based on the results of field research, are presented. The main morphometric and hydrological characteristics of the researched lakes were calculated and analyzed using GIS. On the basis of morphometric characteristics and taking into account the features of the geological structure, topography, hydrographic network of the territory and vegetation features of the superaqual complex, judgments are made about the genesis of the considered lakes.