History of the channel systems formation of the Kama-Keltma lowland in the Late Pleistocene

7th International Scientific Practical Conference "Modern problems of reservoirs and their catchments"

自然科学（总论）

Nazarov, N.N.^1 ; Kopytov, S.V.^1 ; Zhuikova, I.A.^2 ; Chernov, A.V.^3

Department of Physical Geography and Landscape Ecology, Perm State University, 15 Bukireva Street, Perm

614990, Russia^1

Geography Department, Institute of Chemistry and Ecology, Vyatka State University, 36 Moskovsky Str., Kirov

610000, Russia^2

Research Laboratory for Soil Erosion and Channel Processes, Lomonosov Moscow State University, 1 Leninskie Gory, Moscow

119991, Russia^3

关键词: Channel systems;    Deposited materials;    Flood plains;    Late Pleistocene;    Late Pleistocene-Holocene;    Satellite images;    Separate element;    Vegetation species;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/321/1/012023/pdf
DOI  :  10.1088/1755-1315/321/1/012023

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The outcome of the research of the geomorphological structure and age of deposited materials, with a particular focus on separate elements of the Kama-Keltma lowland erosive and accumulative relief, indicates the existence of six channel system formation (reorganization) stages in the late Pleistocene-Holocene: 1 - end of the Kalinin stadial; 2 - Mologa-Sheksna interstadial; 3 - Ostashkov stadial; 4 - 18-10 thousand years ago; 5 - 10-2.5 thousand years ago; 6 - 2.5 - 0 thousand years ago. According to the results of the analysis of Landsat-8 satellite images, the best geomorphological expression of the erosion relief was obtained for bands combinations of the SWIR and NIR 7-6-5 (indication of sandy bars and ridges, indication of the moistening degree of upper bog facies) and NIR, SWIR and RED bands -5-6-4 (indication of the vegetation species composition and the moistening degree of floodplain and swamp peat geosystems).