The Construction Of Urban And Rural Integrative Land Resource Data Center Management System

In the recent years,the research on the Construction of Urban and Rural Integrative Cadastral Management Information System and Data Center is spreading like a raging fire in most districts national wide.But,why must set up the land resource data center?What problems can be solved?And what about the relations between data center and the simplex system?The construction of land resource informationization has been transferring from the mode of former simplex system to e-government and data center.With the implement of"Secondary Land Investigation"and"Golden Land Project",the establishment of management system which can manage and maintain kinds of special Land resource data become urgent.Also,the digital degree of land resource foundational information has been increasingly improved,and the demand of land resource foundation information,data share and information services is increasing more and more.Only the land e-government system and data center can slove the following problems,such as data origining differently,be incapable of data sharing,system and data maintaining complicatedly,data format disaccording,system and data constructing wastly and etc.The land resource data center sets up a integrative management system,which can manage kinds of land resource special data uniformly and concentratively,can inquire,analyse,update,output kinds of special charts and statistical forms,data conversion,and so on.The data center implement the uniform management of multi-scale data.The construction target of urban and rural integrative land resource data center management system:(1) implementing the citywide multi-scale data (urban and rural integrative data )amalgamation. (2) implementing multi-topic integrative management of land resource.(3) implementing multi-topic effective data conversion of land resource.How to apply dispersible and separated land resource information in order to supply service of land resource management decision-making and supply net social service is a imperious problem.Data center will set up a composite database system,which is integrative,distensible,uniform,multi-angle,exchangeable,dependable.Data center is a data warehouse between kinds of operation systems,departments.Chapter 1 analyses the background of the construction of land resource data center management system,the research purpose and main content. Chapter 2 analyses the actuality of land resource management,comes up with two management mode of land resource,including primary complex subject and primary district and partial subject integration,expatiates the deficiency of the existent urban and rural integrative system.Chapter 3 analyses the needs of data center operation and supporting technology,the relationship between data center and e-government system.Chapter 4 discusses the design of land resource data management system,including the criterions and principles of system design,entironment analysis,framework mode,logical framework,then takes the project of Urban and Rural Integrative Land Management System of Linhai as an example,including database content,coding system,primary function and characteristic,effect,the key technology,and expatiates ulteriorly the design idea.The last part is the conclusion and expectation.The research emphases is data management mode and the design of land resource data center management system,including multi-topics uniform management mode and multi-scale region data organizing management mode.In multi-topics uniform management mode,the physical layer and logical layer is independent and uniform.The mode sloves rationally the joint of the relationship between street,parcel of city cadastral investigation,and ownership units,patch of land-use investigation.This mode implements the integrative management and organic combination of ownership information and land-use management.Multi-scale data management and organization model realizes the seamless integration of city and country cadastral,also the integration of ownership management and land-use management.The system management only relates to the districts of province,city and country,but nothing to do with the quantity of the special data.In the developing course of land resource data center management system,we manage system framework by general net frame mode Browse/Server primarily and Client/Server secondarily to supply feasible solutions for operations of citywide departments.The urban and rural data center which bases on new GIS technology,is the basis of operation management and information service system.The data center construction includes:running platform construction,database construction,relative maintenance tools design,exchange system between higher and lower levels.The management tools of data center can span different districts and conform multi-scale and multi-origin database , and advance the share level of information resource.The implemention basis of land resource data center includes urban and rural integrative and multi-special data organism.The system data organism and management model base on land e-government system and"Digital City",and implement the management and combination of land-use programming,construction land management,land exploitation and consolidation,land market,mineral resources,land grading and evaluation,etc.The design of the system has to fully considered the system expansibility. The key technology of system design:(1) massive data management.(2) historical retrospect and temporal GIS.(3) multi-topic data maintenance and dynamic plug-in technology.(4) distributed isomerous spatial database technology and so on.The worked relative technical problems:(1) the joint of multi-scale data.(2) unification of urban and rural number system.(3) joint of urban cadastral database and rural land-use databse.(4) application and requirement of multi-scale land-use database.(5) compilation multi-scale maps.The urban and rural integrative land resource data center have instruction meaning to nation-wide data center construction,which meets the demands of land management mechanism,data share between different departments, integrative managemet mode,and implements data updating automatically.The construction of the urban and rural integrative land resource data center management system of Linhai validates the feasibility of system design thought and scheme.We believe that the accomplishment of data center has important referenced and applicable meaning and value.In the experimental course of system construction,there are many technological difficulties,such as massive data,multi-scale management,data updating,multi-topic management.The land resource data center can't do anything,the primary function includes data management,analysis,providing data services for e-government system.