水土保持研究2012，Vol.19Issue(1)：60-64,69,6.
冀北山区生态恢复下生态输水现状分析——基于东北沟流域的实证
Transporting Clean Water to Downstream under Ecological Rehabilitation Background in Northern Mountainous Area of Hebei Province
摘要
Abstract
The northern mountainous area of Hebei Province as the water source of Beijing and Tianjin plays a vital role in ensuring the safety of downstream water.The focus of the study is on changes in eco-environment in the northern mountainous area of Hebei Province and effects of the change on transporting clean water to downstream.The data comprise land use in 1990 and 2009,precipitation from 1980 to 2009 and household survey in Dongbeigou Watershed where many environmental preservation projects were implemented.The results indicated that there was a huge progress in environmental construction with more than 50% land covered by forest;as the increase of vegetation cover,the intensity and frequency of soil erosion went down.By contrast,the available water resources declined due to the decrease of precipitation.The eco-water consumed by forest increased because of vegetation rehabilitation.In addition,the inhabitants in water source have not strong environmental protection sense and don＇t realize the important position of water source.Non-point source pollution induced by high input of amount of chemical fertilizer is harmful to transporting water to downstream.Setting up the ecological compensation scheme is a good way to coordinate the conflicts between water source area and downstream.关键词
生态恢复/生态输水/冀北山区/东北沟流域Key words
ecological rehabilitation/transporting clean water to downstream/northern mountainous area of Hebei Province/Dongbeigou Watershed分类
资源环境引用本文复制引用
吕明权,王晓龙,张怀..冀北山区生态恢复下生态输水现状分析——基于东北沟流域的实证[J].水土保持研究,2012,19(1):60-64,69,6.基金项目
水利部公益项目“冀北山区生态输水小流域治理模式与关键技术” （）
“十二五”国家科技支撑计划“农田水土保持工程与耕作关键技术” （）
