*Ganbold Ulambayar^1,2、Nakamura Dai¹、Avirmed Dashtseren^2,3、Watanabe Tatsuya¹、Yamkhin Jambaljav⁴、Ganbold Byambabayar⁵、Khurelbaatar Temuujin²、Gansukh Tsogt-Erdene²、Dagvadorj Otgonjargal¹ (1.Kitami Institute of Technology、2.Institute of Geography and Geoecology, Mongolian Academy of Sciences、3.UNESCO Chair of Environmental Sciences in Eastern Central Asia、4.Geocryo LLC、5.National University of Mongolia)