Open AccessDynamics of changes in thawing and freezing depth in soils of Western Transbaikalia in different types of permafrost distribution
Author(s) -
Б-м Н. Гончиков,
Nimazhap Badmaev,
А. В. Базаров,
А. И. Куликов,
А. Ц. Мангатаев
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 - 10.1088/1755-1315/908/1/012038
Subject(s) - permafrost , soil water , steppe , environmental science , soil science , climate change , ecosystem , atmospheric sciences , physical geography , spatial distribution , geology , hydrology (agriculture) , ecology , oceanography , geography , geotechnical engineering , remote sensing , biology
This study reveals temperature regimes of the three contrasting ecosystems in the permafrost area of Western Transbaikalia: meadow-forest ecosystem, forest-steppe and dry-steppe. Annual profile temperature data show the functioning of the studied soils in cryogenic and long-term-seasonally-freezing temperature regime. The most explanatory temperature variables are temperature penetration above 5°C at 100 cm depth and the amount of days with temperature above 0.5°C and 10°C at 20 cm, 50 cm, and 100 cm depths. Also, this work presents a comparative analysis of indicators of soil climate change and shows the spatial-temporal distribution of the reaction of the thawing and freezing depth in soils.