灌河地涵顶管工作井和接收井施工技术  

Benefits of Soil and Water Conservation for Different Vegetation Revetments

作　　者：吕晶[1] 高甲荣[1] 娄会品[1] 刘瑛[1] 

机构地区：[1]北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083

出　　处：《中国农村水利水电》2009年第12期92-94,98,共4页China Rural Water and Hydropower

基　　金：基金项目：圈家自然科学基金资助项目（40771128）.

摘　　要：植物护岸是河流生态护岸的重要组成内容，其植物配置形式决定了植物固土保水效果的好坏。从坡岸不同植物配置形式对防治岸坡水土流失的效果出发，以怀九河天然草本植物护坡形式和人工乔木护坡形式，雁栖河六棱花砖护坡形式和人工草皮护坡形式作为研究对象，采用野外人工模拟降雨方法，并与裸岸岸坡作对比，研究了不同坡岸植物配置形式的地袁径流产流时间、径流总量及平均径流量、径流量随时问变化趋势和产生的泥沙量。结果表明，人工草皮护坡削减径流作用最明显，防止土壤侵蚀的作用显著，六棱花砖护坡形式和天然草本植物护坡形式防止水土流失作用次之，而人工乔木护坡形式防治水土流失作用不明显。合理配置岸坡植物有利于减少地表径流和泥沙量，为今后河流生态护岸设计提供参考。Vegetation revetment is an important component of river ecological embankments. The vegetation disposing styles influence its soil and water conservation. Eased on artificial rainfall simulations, natural herb revetment, tree ecological revetment, six-edgetile revetment and sod revelment are selected to research into their soil and water conservation effects. Meanwhile, naked banks are selected as comparative sites. Runoff initiation time, total runoff, average runoff, tendency of runoff with time and sediment yield is monitored. The results show that the effect of reducing runoff and soil loss of sod revetment is more significant than that of natural herb revetment and six-edge-tile revetment. However, the effect of tree ecological revetment is the least obvious. Reasonable vegetation disposing is good for decreasing the slope runoff and sediment. It is hoped that the results serve as references for the design of ecological embankment.

关 键 词：植物护坡 地表径流 土壤侵蚀 

分 类 号：X171.4[环境科学与工程—环境科学]