Variable	Description	Data Source
Bio3	Isothermality/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio4	Temperature seasonality/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio5	Mean daily maximum air temperature of the warmest month/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio6	Mean daily minimum air temperature of the coldest month/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio7	Annual range of air temperature/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio8	Mean daily mean air temperatures of the wettest quarter/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio9	Mean daily mean air temperatures of the driest quarter/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio10	Mean daily mean air temperatures of the warmest quarter	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio11	Mean daily mean air temperatures of the coldest quarter/°C	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio12	Annual precipitation amount/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio13	Precipitation amount of the wettest month/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio14	Precipitation amount of the driest month/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio15	Precipitation seasonality/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio16	Mean monthly precipitation amount of the wettest quarter/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio17	Mean monthly precipitation amount of the driest quarter/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio18	Mean monthly precipitation amount of the warmest quarter/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Bio19	Mean monthly precipitation amount of the coldest quarter/kg m−2	WorldClim-Global Climate Data (https://chelsa-climate.org) (accessed on 30 October 2022)
Dem	Elevation/m	https://www.gscloud.cn/ (accessed on 30 October 2022)
Sl	Slope/°	https://www.gscloud.cn/ (accessed on 30 October 2022)
Ndvi	Normalized difference vegetation index	https://www.gscloud.cn/ (accessed on 30 October 2022)
Highway	Distance to highway	https://www.webmap.cn/ (accessed on 30 October 2022)
Distw	Distance to water	https://www.webmap.cn/ (accessed on 30 October 2022)
LC	Land cover	https://www.resdc.cn/ (accessed on 30 October 2022)