Based on 30 m ASTER GDEM data in the ArcGIS 10.3 environment,firstly,the optimal window for extracting macro geomorphic factors in the Yangmingshan area of Hunan province was analyzed using the mean-change point method.Subsequently,nine terrain factors,including elevati...MORE Based on 30 m ASTER GDEM data in the ArcGIS 10.3 environment,firstly,the optimal window for extracting macro geomorphic factors in the Yangmingshan area of Hunan province was analyzed using the mean-change point method.Subsequently,nine terrain factors,including elevation,slope,aspect,plane curvature,slope curvature,reli...