Gis-based County-level Land Use Planning Management Information System Applied Research

With the rapid development of social economy, the demand for non-agricultural construction land is increasing, so that the land supply and demand is in ever-growing conflicts. Since China is a country with great population, less arable land, and comparatively insufficient resources, the conflicts between land demand and supply becomes more and more striking with the increased population. The land supply becomes one of the main constraints to economic development. In a result, we should manage and utilize the land scientifically and cannot leave the land utility goes as it used to be. The overall planning of land utility is one of the effective measures we have to employ.The overall planning of land utility refers to an integrated and long-term arrangement for land development, utility, renovation and protection in terms of timing and space by government based on the holistic interest in a long run, with the objective of all land within the region mainly focused on the utility. The purpose is "to strengthen the macro-control and planning management for land utility in order to utilize land resources properly and promote national economic development in harmony, as well as provide argument for the land management regulation combined with certain areas and approval of land utility".Over the past years, basically the land utility in our country is a static planning. However, the planning objective and scheme have to be adjusted all the time since economic, social and politic factors usually influence the request for land utility. At the same time, current situation for land utility also needs adjusting according to the planning implementation. But the traditional planning method fails to meet the above requests. The management information system of overall planning for land utility based on GIS technology possesses superior functions in terms of updating data, adjusting scheme, land utility statistics and dynamic decision, which provides a more scientific quantitative data for land utility. According to the above situation, we research and develop the management information system of overall planning for land utility based on GIS.Based on GIS platform, the management information system of overall planning for land utility is developed for second time. The GIS platform selected is Maplnfo 6.5 with development language of DELPHI 6.0. By use of the second development language MapBasic 6.5 within Maplnfo, Maplnfo can be utilized. ORACLE 8.1.7 is selected as the data platform to manage relevant spatial information and attribute information and maintain, revise and visit database through programming.The system function design includes the basic functions of general GIS, such as input and revision to spatial database and attribute database; dual-direction enquiry on current diagram of land utility, administrative region diagram and attribute information (planning information management and enquiry). The system possesses preview function to choose project sites for planning and to make thematic maps automatically.The thesis explores and analyses several aspects needed considering to establish a management information system of overall planning for land utility based on GIS, and design relevant software, of which the latter can satisfy the requests of some basic enquiries and analysis, as well as support managers to make decision.