Fig. 1

Overview of the study area. The figure was generated using ArcGIS 10.6 (https://www.esri.com/zh-cn/arcgis/products/arcgis-desktop/overview).
Overview of the study area. The figure was generated using ArcGIS 10.6 (https://www.esri.com/zh-cn/arcgis/products/arcgis-desktop/overview).