Design And Realization Of Land Geography Information System

With increasing diversification of society and economy, land use is changing rapidly, which makes government departments'operation flow quite complex, especially land supervision branches'and increases their working difficulties. Original means of handworked managing drawing has not able to meet the requirements such as efficient land management, because land information is mass,isomerous and include not only mass spatial and attribute data but also documents,images,audio and kinescope information. Land use changing rapidly causes mass land history data come into being. So it is a primary goal of land management information construction to efficiently manage and organize all kinds of data using GIS and computer communications technology in order to make these data accessing,storage,management and display convenient, to make us inspect,simulate,analyze and evaluate land use and to provide full,true,external information service and technology support in time.This paper first takes the construction of Shanghai land geography information system as the concrete target, brings forward the general structure of Land Geography Information System, chooses ArcGIS as our developing platform through comparing domestic and foreign GIS software platform; Secondly, realization technology and developing environment of our system are discussed, the secondary developing method of combination VC# based on ArcMap is chosen to complete land geography information system development task; Thirdly, our system is designed in detail, and system database is also designed and created supported by the latest object oriented data model, namely Geodatabase; Finally, Land Geography Information System is established supported by visual developing tools VS2005.NET. The functions such as data management, right management, land plan, land evaluate and image and document management are fulfilled.Our research has great realistic significance on the development of land geography information system. It also has positive effect on promoting the study and application of ArcGIS in the field of land management.