水土保持通报2011，Vol.31Issue(5)：171-175,5.
基于遥感和GIS的三北防护林工程生态效益评价研究——以山西省中阳县为例
Ecological Benefit Evaluation of Three-north Shelter Forest Project Based on GIS——A Case Study in Zhongyang County,Shanxi Province
摘要
Abstract
Ecological benefits of the three-north shelter forest project were evaluated based on total value calculated from the data regarding project status,which was estimated using remote sensing monitoring and ground truthing in Zhongyang County,Shanxi Province.An ecological benefit evaluation map of the three-north shelter forest project was acquired using GIS,providing a basis for project evaluation and ecological compensation.The results show that the three-north shelter forest project in Zhongyang County has improved ecological environment significantly,resulted in annual average ecological benefit per unit area of 40 807.05 yuan/（hm2·a）,and annual total ecological benefit of 3.08×109 yuan/a.As of the spatial distribution,the sites located in the earthy-rocky mountainous area developed a large number of natural secondary forests,suggesting a better environmental conditions than in the loess area.Annual average ecological benefits per unit area in the earthy-rocky mountainous and in loess area were 42 800.98 and 37 342.20 yuan/（hm2·a）,respectively.In terms of vegetation type,annual average ecological benefit per unit area of the forests（coniferous,broadleaved,and coniferous and broadleaved mixed） was greater than that of shrub,as of 44 618.59 and 37 414.95 yuan/（hm2·a）,respectively.关键词
三北防护林工程/生态效益/遥感监测/GIS/中阳县Key words
the three-north shelter forest project/ecological benefit/remote sensing/GIS/Zhongyang County分类
农业科技引用本文复制引用
王晓慧,陈永富,陈尔学,张元应,雒艳兰..基于遥感和GIS的三北防护林工程生态效益评价研究——以山西省中阳县为例[J].水土保持通报,2011,31(5):171-175,5.基金项目
“十一五”国家科技支撑计划课题“国家重点林业工程监测技术研究” （）
中国林科院资源所中央级公益性科研院所基本科研业务费专项“林业生态环境监测中的尺度转换问题研究” （）
