Analysis of the Relationship between Forest Spatial Distribution Characteristics and Topographic Factors in Northwest Guizhou Nature Reserve Based on DEM Data——Taking Bijie National Forest Park in Guizhou as an Example
Based on the subclass data of the comprehensive monitoring of forest and grass ecology in 2021,subclasses of forest zoning in Bijie National Forest Park in Guizhou Province were extracted as the study area.The elevation,slope and slope direction were ob-tained by ArcMap 10.8 combined with the digital elevation model(DEM),and the forest types of different elevation,slope and slope levels in the study area were analyzed.It is of great significance to study the relationship between forest spatial distribution characteris-tics and topographic factors in the protected areas of northwest Guizhou.The results showed that the total forest area of the study area was 3690.55 hm2,which was densely distributed in 1501～2100 m,accounting for 96.66%of the whole.In the 6°～25°section,72.70%;In the semi-positive slope,semi-negative slope accounted for 53.59%,respectively more than 25%.
万方数据
