葎草的水土保持效益研究  

Efficiency of Humulus Scandens on Soil and Water Conservation

作　　者：杨开宝[1] 李景林[1] 张国云[1] 

机构地区：[1]西北农林科技大学资环学院,陕西杨凌712100

出　　处：《水土保持通报》2003年第6期26-28,共3页Bulletin of Soil and Water Conservation

基　　金：农业部丰收计划项目"黄坡治理与开发--葎草的示范与推广

摘　　要：3a定位试验研究表明,艹律草群落不仅是一种优良的牧草资源,也是保土固土能力特别强的水土保持草本植物,是绿化荒山、荒坡、荒沟,改善黄土高原生态环境的一种理想草被;播种当年地面覆盖度可达80%,第2a可达90%以上;综合分析计算结果表明,与天然草被相比,艹律草配置简易水保工程措施的蓄水效益为46%,减沙效益为75.9%。Located experiment in 3 years indicates that Humulus scandens is not only a kind of good forage grass resources, but also a soil and water conservation herb which has strong capacity to fix and protect soil. It is a kind of ideal grass vegetation to afforest barren mountain, slop and gully, to improve ecological environment of the loess plateau. The coverage could be 80% within the seeding year and more than 90% the next year. The result with synthetical calculation and analyzing indicates that the water conserving efficiency of Humulus scandens combined with simply soil and water conservation physical measures is 46%, and the sand reducing efficiency is 75.9%.

关 键 词：Lu草 水土保持植物 荒山荒坡治理 降雨径流 地表冲刷 植被盖度 

分 类 号：S157.433[农业科学—土壤学]