Fig. 1

Map of the research site. Software information and data source: Map generated using ArcGIS version 10.8 (https://www.esri.com/en-us/arcgis/products/arcgis-desktop). The map was clipped from a publicly available China administrative boundary dataset (source: iGISMap, https://www.igismap.com/download-china-administrative-boundary-gis-data-for-national-province-and-more/).