REE示踪条带施放法研究坡面土壤侵蚀垂直分布规律

通过室内模拟和野外小区试验，采用中子活化分析手段，进行了运用ＲＥＥ 示踪条带施放法研究坡面土壤侵蚀垂直分布的可行性分析。结果表明：示踪元素条带施放法研究土壤侵蚀，可定量分析黄土坡面不同坡段的相对侵蚀量，具有满意的试验精度，并揭示了产沙强度随坡长存在３ 种变化模式。

Based on the experimental data obtained from the belt discharge of REE tracer and INAA technology in room and field,the probability using this method to study vertical distribution of soil erosion in slope is analyzed.The results indicate that the belt discharge method of REE tracer has good accuracy and can be used to study soil erosion in slope and analyze relative erosion of different zone in slope.The research reveals that there are three models in the degree of sand producing with slope length.\;