Figure 1

Location and terrain of the study area. (Note: The Arcgis10.8 software was used in this study. The data were obtained from The China Standard Map Service System. Drawing review No: GS(2020)4619.)
Location and terrain of the study area. (Note: The Arcgis10.8 software was used in this study. The data were obtained from The China Standard Map Service System. Drawing review No: GS(2020)4619.)