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侵蚀沟道普查是全国水利普查中水土保持普查重要内容之一,通过调查侵蚀沟道现状,可掌握侵蚀沟道的分布、面积及危害等。对全国侵蚀沟道普查的目标、对象、指标及采集方法、技术路线、流程等进行了初探,提出了利用“3S”技术提取普查指标和利用GPS、激光测距仪以及传统测量方法进行普查指标采集的方法,可为全国侵蚀沟道普查工作提供借鉴和技术支撑。
Erosion channel survey is one of the important contents of water and soil conservation survey in the national water census. By investigating the status quo of the erosion channel, the distribution, area and hazards of the erosion channel can be grasped. The objectives, targets, indicators and acquisition methods, technical routes and processes of the National Erosion Channel Census were explored. The paper proposed the use of “3S” technology to extract census indicators and the use of GPS, laser range finder and traditional measurement methods Census indicators collected method for the national erosion channel census provide reference and technical support.