沟道侵蚀与地面遥感监测研究

Study on the gully erosion and remote sensing of ground

该文通过安塞纸纺沟和天水龙王沟内两条小冲沟的地面遥感监测,取得大量资料与较好的结果。该方法能高速度、高精度地监测沟道小流域的总输沙量、主要产沙部位及各地形部位的产沙量,主要产沙区分布在谷缘线附近及其以下的沟坡。导致沟坡为主要产沙区的因素是梁峁坡地表径流和沟坡本身的表面径流。

Based on the remote sensing and monitoring to the two small gullies in Zhifang vally of Ansai county and Longwang vally of Tianshui,a lot of data and better resulls were obtained.The method could monitor the total sedimet transport of gully,sediment load of major sediment producing section and of topographic area with high speed and presision,the main parts producing sediment distributes near the gully line and the slope under it.The predominent factors causing sediment are runoff from ridge,mound and slope.