森林植被和小流域生态修复对水沙变化的影响研究  

Effects of Forest Vegetation and Ecological Recovery of Small Watershed on Water and Sediment Variations

作　　者：兰跃东[1] 康玲玲[2] 

机构地区：[1]山西省水土保持生态环境建设中心,山西太原030002 [2]黄河水利科学研究院水利部黄河泥沙重点实验室,河南郑州450003

出　　处：《水土保持通报》2010年第1期35-38,共4页Bulletin of Soil and Water Conservation

基　　金："十一五"国家科技支撑计划"黄河流域水沙变化情势评价研究"(2006BAB06B01-04-06)

摘　　要：为探讨植被建设对水沙变化的影响,分析了北洛河流域森林植被和小流域生态修复的减水减沙作用。结果表明,森林植被对径流、泥沙有明显的削减作用,可削减径流62.4%,泥沙94.9%,同时还调蓄了径流的年内分配,可将20%～30%左右的汛期径流调节到非汛期释放。但也应当看到,森林一旦遭受破坏,在暴雨洪水的作用下,林区洪水泥沙也会剧增。另外,从小流域生态修复对水沙变化的影响来看,生态修复具有一定的减水减沙作用。Effects of forest vegetation and small watershed ecological recovery on water and sediment variations in Beiluo River basin were studied. Results showed that forest vegetation could reduce runoff and sediment by 62.4% and 94.9%, respectively. Meanwhile, it regulated the annual distribution of runoff and released 20%-30% of runoff from flood season to non-flood season. However, flood sediment in forest region increased drastically under the effect of storm flood when forest was destroyed. In view of the effects of ecological recovery on water and sediment variation, the ecological recovery had a certain role in reducing water and sediment.

关 键 词：森林植被 生态修复 水沙变化 北洛河 

分 类 号：S157.1[农业科学—土壤学]