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STUDY ON CHANGEABLE PROCESS OF SOIOL EROSION DISTRIBUTIVE CHARACTERISTICS ON THE SLOPE SURFACE BY REE TRACING METHOD
Authors
刘普灵
琚彤军
Publication date
1 January 2005
Publisher
Abstract
本文利用REE示踪技术 ,初步探讨了野外全坡长小区在次降雨过程中 ,坡面侵蚀时空分布的动态变化过程。结果表明 :利用REE示踪法不仅可以准确地测定坡面不同地形部位的相对侵蚀量 ,还可通过对侵蚀过程样的分析 ,较为客观揭示降雨侵蚀过程中坡面各部位相对侵蚀量的时空变化趋势。坡面各部位相对侵蚀量随时间的变化可能存在三种模式 ,增长递减型、递增型和波动型。其最大侵蚀部位主要集中在坡面中段 ,并随降雨的持续 ,存在向坡面下部移动的趋势
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018