摘要
提出了一种研究土壤侵蚀的新方法—稀土元素示踪法。该法通过多种稀土元素示踪，可以观测任一所给走坡段次暴雨的侵蚀量和沉积量，因而在土壤侵蚀垂直分布定量分析、特殊地形部位的土壤侵蚀以及小流域泥沙来源等研究领域有广阔应用前景。
REE tracer method .as a new method for studies of soil erosion, has been proposed and aclopted in this study. Because of multi-REE tracers employed, the erosion and spdimentation amount of any definite slope section can be observed conveniently in each rainfall. Therefore,the REE tracer method has a broad applied future for scientists to studythe vertical distribution quantitative annlysis of soll eroslon, the soil erosion of specific topographic parts as well as the sources of sediment in a small watershed.
出处
《水土保持研究》
CSCD
1997年第2期2-9,共8页
Research of Soil and Water Conservation
基金
中国科学院"八五"重点项目
关键词
稀土元素
示踪法
土壤侵蚀
分布
黄土高原
rare earth element
tracer method
soil erosion distribution
sediment
