基于GIS的森林景观格局研究——以桃山林场红塘沟流域为例

Study of forest landscape pattern based on GIS——A case in Hongtanggou valley of Taoshan Forest Farm

以2009年森林资源二类调查数据为基础,结合GIS分析软件,运用相关景观异质性指数和景观格局指数,系统地分析了红塘沟流域森林景观格局。结果表明:研究区森林景观以有林地为主体,其面积和斑块数的比例分别为73.48%和40.79%,优势度达到3.0338,为研究区景观基质;综合分析景观多样性指数、均匀度指数以及优势度指数表明,研究区景观异质性较低,景观各要素斑块交互镶嵌;景观斑块规模最大的为有林地,各景观斑块形状差异较大。

Based on the forest management inventories in 2009,and by using GIS software,this paper analyzed the forest landscape patterns in Hongtanggou valley of Tao Shan Forest Farm,and the related index of landscape heterogeneity and landscape indices was selected.The results show that：the forest landscape ware mainly forestland,is 73.48%of the total area of landscape,it can be used as the study area landscape matrix by 40.79%of the total number of landscape patches,and the dominance is 3.0338.Landscape diversity index,evenness index and dominance index analysis showed that,the lower landscape heterogeneity and heterogeneous landscape elements patches mosaic.Forestland was the largest scale for landscape patches,and the patches ware a variety of shapes.