摘要
小流域是水土流失综合治理的基本单元 ,定量研究其侵蚀产沙的空间分布 ,对于水土保持措施的实施有着重要的意义。作为土壤侵蚀重要的研究热点之一 ,土壤侵蚀定量研究在我国已有 5 0年之久 ,回顾并总结过去的研究成果对于今后更好地开展研究工作十分必要。在简要回顾了我国土壤侵蚀定量研究的过去与现状的基础上 ,主要就降雨特性、坡度、坡长、坡向、植被盖度及土地利用方式等影响因子与土壤侵蚀的定量关系研究 ,以及小流域侵蚀产沙定量研究方面的最新进展进行了归纳和总结 。
A small watershed is the basic unit of comprehensively controlling soil and water loss. It is very important for designing soil and water conservation measures and preventing soil and water loss to quantitatively study its spatial distribution of erosion yield. The quantitative research on soil erosion, as one of the key research focuses, has been studied in China for 50 years and much work has been done in this field. To summarize the past achievement is of significance to our research work for the further. On the basis of reviewing the past and present situations of the quantitative research on soil erosion in China, some quantitative researches and the recent development, including the relationship between soil erosion and some chief natural factors causing soil erosion such as the characteristics of rainfall, slope length, slope degree, slope aspect, vegetative cover degree and types of land use were induced and summarized. Also the recent development of quantitative research on the erosion yield in small watersheds was summarized.Meanwhile, the problems of researches in these fields were discussed.
出处
《水土保持研究》
CSCD
2002年第3期243-248,共6页
Research of Soil and Water Conservation
基金
中国科学院知识创新工程项目 (KZCX1-10 -0 4)
中欧合作项目 (D980 5 2 5 0 0 )资助
关键词
土壤侵蚀
定量研究
地貌因子
小流域
侵蚀产沙
soil erosion
quantitative study
geomorphologic factor
sediment yield in small catchments
