摘要
通过野外模拟降雨实验 ,研究了降雨对地表糙度的影响规律 ,经过降雨作用后 ,随机糙度的地表 ,变化呈增加趋势 ,而有向糙度的地表 ,则呈减小趋势 ;随着降雨组合因子增加 ,随机糙度的变化量呈增加的趋势 。
On the base of field rainfal experiments, the effect regulars between rainfall and surface roughness were obtained The variation of roughness increased to random roughness and decreased to oriented roughness on the condition of rainfall. The variation of random roughness and oriented roughness was different with the increasing combinating factor of rainfall (PI). Random roughness increased, while oriented roughness decreased in an exponent function gradually.
出处
《水土保持研究》
CSCD
2003年第2期151-154,共4页
Research of Soil and Water Conservation
基金
陕西省"十五"科技攻关项目"不同类型区生态环境治理关键技术示范基地建设"( 2 0 0 1K0 1-G12 -0 3 )
关键词
地表糙度
降雨强度
降雨组合参数
土壤侵蚀
surface roughness
rainfall indensity
combinating factor of rainfall
