The Creation And Development Of Land Resources Ecological Economic Suitability Evaluation System Based On SuperMap

With increasing degenerative environment and conflict between land resources and growing population, people are facing serious challenge. So we must always adhere to the basic national policy, that is, "quite cherishing, using land resources and protecting infield actually", and rightly deal with connection in between economic development and resources protection and environment constructing, and ensure sustaining development of social and economy, which is a yardstick of the creation of district ecology environment and economy constructing. But, at present the management means of land resources is laggard at a majority of areas in our country. Therefore, for realizing modernization of land resources management of our nation quickly, being meet for the need of land management department, this paper utilized that computer software technology was combined with the development tool of Geography Information System (GIS) to create the Land Resources Ecological Economical Suitability Evaluation System (LRES), and attempted scientific management to land resources of Zhao zhuang Village Yan Er Gou Watershed Yenan City in order to realize in control exactly of land use present condition in time and supply with decision-making support for this areas.According to the theory of information system, this dissertation assays the feasibility and necessary of developing the LRES. Based on that, the system was analyzed, schemed and designed. The structure of system was analyzed and the basic thinking and technology route were probing that applying object-oriented program design method, event-run mechanism, and developing LRES by using DelphiS.O visual program circumstance. At the same time, the make the landuse thematic map and the location thematic map by applying SuperMap GIS ActiveX to develop secondly, founded spatial database, and designed electronic map were studied.This system is based on GIS. Under the direction of the theory of system science, subject-intellectual knowledge is comprehensively applied in the paper, such as information science, computer science and land resources, and so on. Application of the systemic project and method, the system was designed by analyzing the object and mission of the system, the user's demand and the sources of data. Based on that, furthermore, the concept and logic of the database was designed. After classifying and coding of the data, a spatial database including such data types as text, figures and tables was built.This system consists concretely of dataset management, map browse, electronic map creation, information finding, user logging in and administration, network navigation modules and etc. Every module was run autonomously to improve the independence of the system in order to manage and assert the system. The systemused Object-Oriented and Controller-Oriented ActiveX. In addition, the system was based on GUI design idea, which was characteristic of frame in reason, mighty functions, friendly interface, simple use and strong service function.The merit of the system is organically combination GIS with MIS. The combination makes it possible to solve the difficult problem, which cannot be solved by the traditional MIS. The system offers a visual interface for LRES.