基于无人机影像的废石场附近土壤侵蚀研究

Study on Soil Erosion Near Dump Slope Based on UAV Images

废石场附近的土坡结构松散,经过雨水冲刷形成侵蚀沟,造成水土流失,存在一定的安全隐患。传统的侵蚀沟监测采用传感器法、人工监测法等,这些方法费时费力,监测成本高。本文针对上述问题,利用无人机作为地理信息数据采集工具,快速获取监测区域影像,制作监测区域地形图,对地理信息数据进行人工判读结合地表平面曲率判断,定量提取侵蚀沟的土方量,最终利用土壤侵蚀模型解决废石场附近土坡侵蚀监测评价难题,这种方法对同类别土壤侵蚀监测项目具有一定的借鉴作用。

The soil slope near the dump slope has a loose structure,which forms an erosion ditch after rainwater scouring,causing water and soil loss,and posing certain safety hazards.Traditional monitoring methods for erosion ditches include sensor method,manual monitoring method,and other methods,which are time-consuming and laborious,and the monitoring cost is high.In response to the above issues,this paper uses UAV as a geographic information data acquisition tool to quickly acquire images of the monitoring area,produce topographic maps of the monitoring area,manually interpret geographic information data,combine with surface plane curvature judgment,and quantitatively extract the earthwork volume of the erosion ditch.Finally,the soil erosion model is used to solve the problem of monitoring and evaluating soil slope erosion near the dump slope,this method can be used as a reference for similar soil erosion monitoring projects.