摘要
通过对3种草本、3种灌木、3种乔木植被类型的小区径流资料分析研究,结果表明就减少径流损失作用而言,灌木作用最为明显,草本次之,乔木最差;就减少土壤侵蚀作用而言,灌木作用最为明显,乔木次之,草本最差;草本、灌木、乔木植被类型的年土壤侵蚀量和3种植被类型中的草本盖度表现出相反的趋势,即草本盖度越高的草本、灌木或乔木植被类型,年土壤侵蚀量越低。
Through the study of plot runoff resource,3 herb vegetation types,3 shrub vegetation types and 3 arbor vegetation types in loess hilly region,.The obtained results showed that shrub vegetation is the best,herb vegetation is medial,arbor vegetation is the worst in the function of reducing runoff.While shrub vegetation is the best, arbor vegetation is medial,herb vegetation is the worst in the function of reducing soil erosion.The whole year sediment amount of 3 herb vegetation types,3 shrub vegetation types and 3 arbor vegetation types has an opposite tendency with each herb cover degree, respectively. That is to say, the more of cover degree of herb,shrub or arbor vegetation, the less of sediment amount .
出处
《水土保持研究》
CSCD
2004年第2期153-155,共3页
Research of Soil and Water Conservation
基金
中国科学院知识创新项目(KZCX1-06)
国家重点基础研究发展规划项目(G2000018606)
国家"十五"科技攻关项目(2001BA508B17)
