激光微地貌扫描仪的开发研制及在坡面侵蚀研究应用初步

利用光线的反射与聚焦成象原理 ,将地表高程转换成不同物象点位置的电信号 ,再经计算机处理成数字高程模型 ,即形成用于获取地表糙度数字高程模型的激光微地貌扫描仪。实验测量得到 :在相同初始条件下 ,不同坡度土槽放水和降雨实验后地表形态的数字地形模型。通过对侵蚀地表形态的分析 ,得出坡度对坡面侵蚀及沟蚀影响的某些初步规律。

A high precision micro topographical laser scanner is presented in the paper It has been used to extract the rough surface Digital Elevation Model (DGM) Models for morphological patterns of soil surface under sheet/concentrated flow and rainstorms,under different slopes and the same initial conditions are obtained Through analysis of the morphology of soil surface,a preliminary attempt is made to estimate the influence of slope on upland and/or rill erosion The patterns of rill network are presented vi...