摘要
建立了草原沙化治理工程生态效益快速评价"植被-风沙活动-土壤"3个层次的指标体系,运用层次分析法确定了各个指标的权重,并对指标的域值进行了确定、量化和分级,选择镶黄旗翁贡乌拉苏木2种不同类型的治理工程做实例研究,建立相应的指标体系,地面调查和遥感解译相结合,运用研究提出的评价方法模型,对工程进行了生态效益评价。结果显示:2004年封沙育林工程得分为75.88分,生态效益良;2004年飞播造林工程得分为81.07分,生态效益优。
In this art icle,＂vegetation, soil, wind-sand activhies＂ three layers index system has been established and the value of the index has been decided by AHP. Take 2 types of ecological project in xianghuang banner as example, its ecological benefit were evaluated by using the method of remote sensing interpretati GV on and ground investigation. The results show that the score of enclosure project is 75.88, the score of Aerial Seeding project is 81.07.
出处
《草业科学》
CAS
CSCD
北大核心
2009年第9期7-12,共6页
Pratacultural Science
基金
中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助项目"基于3S的草原沙漠化治理工程生态效益快速评价体系建立"(2006-01-08)
关键词
3S技术
层次分析法
指标体系
生态效益
评价
草原沙化
3S technology
AHP
index system
ecological benefit
evaluation
grassland desertification
