Research On The Method Of Land And Resources Survey Results Data Downsizing

This article is in the context of the project about "the Second national land survey results data downsizing". The main contents of the paper is Research on the Method of the Second national land survey results data downsizing. On the basis of researched and analysised the technical processes and implementation of the Second national land survey results data downsizing. Including Downsizing of Polygons,Downsizing of Linear features,Downsizing of Other elements.Then designed a method of downsizing which combining based on FME and Arcgis, and using the data of the test area and analysised the results of experimental.The main results are as follows:1, By reading a lot of literature, Researched and analysised the techniques and methods of Land use map downsizing at home and abroad. Analyzed and summarized the existing method of the Second national land survey results data downsizing.2, Summarized and compiled the technical indicators of the various elements at different scales of the Second national land survey results data downsizing. by research and analysis technical indicators of the Second national land survey results data downsizing. Then explains the meaning of these indicators.3, Design technical a processes to improve the efficiency of the Second national land survey results data downsizing by analyzing the index specification of the Second national land survey results data downsizing, then analysis indicates the entire process.4Using a county of Shanxi Province as an example,Introduced the method of the Second national land survey results data downsizing which based on FME and Arcgis.Introduced from the following three aspects:Downsizing of Polygons,Downsizing of Linear features,Downsizing of Other elements.5, Analyzed the results quality of the method of the Second national land survey results data downsizing which based on FME and Arcgis,test and verify the quality of results whether sufficed the requirements of the Second national land survey results data downsizing,in the end summary and analysis of this method..