Intensity Assessment of Erosion-Accumulative Processes in the Selenga Middle Mountains (Case Study of the Gully Network of the Nizhnyaya Bulanka Depression, Western Transbaikalia)
Bair Z. Tsydypov,
Bator V. Sodnomov,
Vladimir N. Chernykh,
Yury M. Ilyin,
Bair O. Gurzhapov,
Alexander A. Ayurzhanaev,
Maria V. Semenova,
Margarita A. Zharnikova,
Zhargalma B. Alymbaeva,
Eduard A. Batotsyrenov,
Fujia Li,
Hao Cheng,
Tcogto Bazarzhapov,
Tamir Boldanov,
Suocheng Dong,
Endon Zh. Garmaev
Affiliations
Bair Z. Tsydypov
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Bator V. Sodnomov
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Vladimir N. Chernykh
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Yury M. Ilyin
Buryat State Academy of Agriculture, 670024 Ulan-Ude, Russia
Bair O. Gurzhapov
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Alexander A. Ayurzhanaev
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Maria V. Semenova
Buryat State Academy of Agriculture, 670024 Ulan-Ude, Russia
Margarita A. Zharnikova
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Zhargalma B. Alymbaeva
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Eduard A. Batotsyrenov
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
Fujia Li
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Hao Cheng
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Tcogto Bazarzhapov
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Tamir Boldanov
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Suocheng Dong
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Endon Zh. Garmaev
Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia
The advantages of a quantitative assessment of the spatial and temporal variability of the boundaries and volumes of ravines using modern means and methods of aerial photography from an unmanned aerial vehicle (UAV) are substantiated, in contrast to traditional survey methods (linear method of benchmarks, tacheometric, aerial and space photography, laser scanning). The erosion zoning and mapping of linear and gully formations on the territory of the Kuitunka, Tarbagataika, and Kunaleika river basins (Selenga middle mountains) are carried out. The reanalysis data were used to assess extreme meteorological events leading to the acceleration of erosion processes. Paleontological material confirms the long duration of erosive-accumulative processes in the Nizhnyaya Bulanka depression. High-accuracy multi-temporal orthophotomaps and digital elevation models of Bulanka gully using unmanned aerial vehicles were produced. The method of quantitative estimation of gully formation rates is offered, which allows estimating with high accuracy the change of area and volume characteristics of erosive forms.