森林工程2012，Vol.28Issue(4)：69-72,4.
森林水源涵养生态效益的估算与评价研究
Estimation and Evaluation on Ecological Benefit of Forest Water Conservation
摘要
Abstract
A conventional multivariate statistical model for estimating the ecological benefit of forest water conservation was con- structed by using the survey data from an Ecological Observatory Station and Landsat -5 TM remote sensing image data in 2008. The determination coefficient of the regression model was 0. 788 with average fitting accuracy of 81.1%. The parameters of this model were used as the input data in Geographic Information System （GIS） to reveal the spatial distribution of quantity and value in Laosban area in 2008, then the quantity of the total forest water conservation was computed as 2. 64 million tons. The total value of water conserva- tion derived from the currency structure model in the study area was estimated to be 1.32 million yuan. Finally, the variation features of the quantity changed with topographies were analyzed, which are in accordance with the actual situation.关键词
森林水源涵养/生态效益/统计模型Key words
forest water conservation/ecological benefit/statistic model分类
农业科技引用本文复制引用
翟畅,胡润田,范文义..森林水源涵养生态效益的估算与评价研究[J].森林工程,2012,28(4):69-72,4.基金项目
基金项目：“十二五”国家科技支撑计划 （）
