摘要
为确定海河流域不同类型区水土保持综合治理的减水减沙作用 ,并为估算生态用水提供依据 ,采用定性与定量相结合的方法 ,划分海河流域生态环境建设区 ;在分区的基础上 ,根据多年来小流域治理减水减沙作用的观测成果 ,分析、计算黄土丘陵沟壑区、土石山区、石质山区的减水减沙定额 ;以各分区水土流失综合治理的保存面积及规划治理面积为依据 ,计算出海河流域现状、2 0 10年及 2 0 30年的水土保持生态用水分别为 2 6 0 6亿、4 2 92亿及71 5 3亿m3 。
Soil and water conservation(SWC) may protect and improve the eco-environment, reduce the amount of soil erosion and sediment of river, at the same time, it may also reduce the water resources of river. On the basis of dividing eco-environmental conservation zones and analyzing of the observation results of small watersheds management, the author calculated the amount of water use by soil and water conservation in Haihe river basin. The amount of water use by SWC at present is 26 06×108?m3, 42 92×108?m3 in 2010, and 71 53×108?m3 in 2030 respectively.
出处
《中国水土保持科学》
CSCD
2004年第1期46-51,共6页
Science of Soil and Water Conservation
基金
中国工程院西北地区生态环境建设区域配置咨询课题
水利部水土保持司资助项目 (北方水土保持生态用水研究 )
关键词
海河流域
水土保持
生态用水
生态环境
减水减沙作用
Haihe river basin
small watershed management
function of reducing water and sediment
ecological water use
