关键词: 征地移民, 实物调查, 无人机测量, 全面套合, 多指标空间叠加,

Abstract: The mode of using field survey to complete the object investigation of land requisition and resettlement in water conservancy projects is unable to meet the actual needs.On the basis of full investigation of authoritative data,aiming at improving work efficiency with the mode of indoor analysis as dominant way and accompanied with in-situ survey,a set of physical survey scheme based on UAV aerial survey was put forward,including using real estate title and geographical national data to complete geospatial information integration,attribute information integration and operation,geospatial analysis,and field verification as supplementary physical investigation.The results showed that the scheme can quickly fix the physical information at standard time to put an end to the temporary illegal building;the high efficiency field collection shortened the working time to reduce the cost;overall overlap ananlysis of statutory data can ensure that the legal principle of requisition is sufficient;superposition of multi-index space made the form of achievement more abundant.This result can reflect the situation of the investigation area more scientifically and truthfully,providing reference for the completion of similar work.

Key words: land requisition and resettlement, object investigation, UAV measurement, overall overlap analysis, multi-index space superposition,