REEs示踪技术在土壤侵蚀研究中的应用

Applications of REEs Tracer Method Used in Soil Erosion Study

近年来,随着示踪技术在土壤侵蚀研究中的广泛应用,稀土元素示踪技术(REEs Tracer Method)已被公认为理想的土壤侵蚀示踪法。与传统的研究方法相比较,REEs示踪技术能够定量监测坡面侵蚀形态的时空演变过程,分析坡面侵蚀分布规律。同时,REEs示踪技术也为确定泥沙来源、评估土壤侵蚀与泥沙治理措施提供了帮助。分析了REEs示踪技术在土壤侵蚀研究中的可行性以及取得的成果,并对其在土壤侵蚀研究中的不足进行分析。

Recently,with the applications of tracer methods used in soil erosion,Rare Tracer Method(REETM) have been largely regarded as ideal tracers method for soil erosion. Compared to traditional means,it can be used to quantitatively monitor the temporal and spatial variation of slope erosion forms and analyze the law of the slope erosion distributions. Moreover,it was also able to determine the sediments source to evaluate the measures about governing soil erosion and sediments. Both the feasibility of REETM and achievements in soil erosion,were reviewed. Some limitations were also summarized.