Open AccessDynamics of the Length of the River Network of Elementary Watercourses in the Zone of Broad-leaved Forests under High Anthropogenic Pressure in the XXI Century (on the example of the catchment area of the Birlya river in the Republic of Tatarstan, Russia)
Author(s) -
А Е Асташин,
O N Pashkin,
O E Vatina,
N. I. Astashina,
A I Fomina
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/688/1/012023
Subject(s) - hydrology (agriculture) , drainage basin , channel (broadcasting) , geography , population , geographic information system , current (fluid) , physical geography , environmental science , geology , cartography , oceanography , demography , geotechnical engineering , engineering , sociology , electrical engineering
The article presents the results of research the dynamics of the length of the channel network of elementary watercourses within the territory of the catchment area of the Birlya river in the XXI century. The researched area is located in a zone of broad-leaved forests and characterized by high anthropogenic pressure on the landscape (high plowing and relatively high population density). The research is based on the materials of expedition work, carried out in the summer of 2020 and on geoinformation analysis of topographic map data. As a result of field work, the current position of the sources of elementary watercourses was realized, and the change in the length of rivers was calculated by comparing the position of it’s sources in 2001, recorded on topographic maps, with the position of the sources of rivers in 2020. Established the fact of multidirectional dynamics of the length of the channel network of elementary rivers in comparison with 2001 and the significant role of local conditions that determine this dynamics: the nature of agriculture, forest cover, ploughing, and the influence of animals.