基于3S技术的土地详查方法创新

简要介绍了将3S技术应用于土地详查的具体方法,分析了3S技术对土地详查精度提高的贡献,指出了存在的具体问题。

INNOVATIONS IN METHODS OF LAND USE DETAILED SURVEY BASED ON 3S TECHNIQUES

Land Use Detailed Survey (LUDS) is a process for acquiring detailed information about types, distribution, quantity, application status and tenure of land on large scales according to The Chinese Technical Order of Land Use Status Survey. LUDS is characterized by rigorous land use classifications, strict precision indices, on-the-spot survey and land tenure survey. Nevertheless, the traditional methods for LUDS are based on handwork, and are hence time-wasting and need lots of manpower; In addition, the survey processes have cockamamie programs and can easily produce errors. With the rapid progress of RS, GPS and GIS, the conditions for acquiring land use information are much better than before. This paper briefly describes the concerted methods of 3S in LUDS and evaluates the precision improvement. It also points out some troubles in 3S application.