Research on Monitoring Technology of Erosion Gully in Loess Residual Plateau Gully Area Based on UAV Photogrammetry
China is one of the countries with the most serious soil erosion in the world,especially in the Loess Plateau in Northwest China,where soil erosion is most significant.In this paper,the dynamic monitoring of soil erosion was carried out in Zhongduo Tableland of Jixian County,Linfen City,Shanxi Province,through the use of UAV-mounted LiDAR to establish a three-dimensional model to derive the amount of change in the morphological characteristics of the erosion gully,i.e.,the amount of expansion of the erosion gully.The results of the UAV monitoring were also verified by deploying braziers at the head of the selected erosion gully and monitoring the changes in the height of the braziers before and after heavy rainfall.It is finally concluded that the application of UAV remote sensing monitoring technology in erosion gully can comprehensively improve the technical level of erosion gully monitoring,enhance the efficiency of monitoring work,and is worthy of popularizing its use in erosion gully monitoring.
万方数据
维普
