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坡面细沟形态是一个降雨驱动下侵蚀产沙的微地形动态响应系统,这一地形因素体现着坡面侵蚀动力学各要素及其相互作用,是基于物理过程的水蚀预报模型的关键部分。要建立具有物理意义的坡面侵蚀产流产沙预报模型,就必须从地形角度对细沟形态及其演化过程进行深入研究。评述了近年来国内外在坡面细沟形态演变与量化领域的相关研究成果,从理论研究和观测方法两方面剖析了制约研究发展的因素,提出了推动该研究发展的对策,即:构建细沟形态量化参数评价标准,从建立“状态+时间”综合量化模式入手,以坡面细沟形态为切入点,研究一个连续降雨过程中细沟形态的发育过程与降雨侵蚀产沙过程的关系,定量揭示坡面侵蚀响应规律。
The microtopography is a microtopography dynamic response system under rainfall-driven erosion and sediment production. This topographic factor reflects the various elements of the erosion dynamics and their interactions, and is a key part of the water erosion prediction model based on physical processes. To establish a physical model of runoff erosion and sediment yield prediction, it is necessary to conduct an in-depth study on the shape and evolution of the thin furrow from the perspective of the terrain. In this paper, the research results of the research on the morphological evolution and quantification of the rill in the slope at home and abroad are reviewed. The factors restricting the development of the research are analyzed both theoretically and observationally, and the countermeasures to promote the development of the research are proposed Beginning with the establishment of the comprehensive quantitative model of “state + time”, taking the sloping pattern as starting point, this paper studied the development of the shape of the gully and the process of rainfall erosion and sediment production during a continuous rainfall Relationship, quantitative revelation slope erosion response.