| Land resources are valuable and limited.With the development and prosperity of China's economic,The land market becomes quite lively.Under the circumstances,to be fully justified use every inch of land becomes the consensus of the people.Assessment of land quality is the prerequisite to rational use of land.With the deepening of the land market,grading of land in towns become the important task of the land management. Mufti-factors integrated classification and transaction example classification are two ways now in common use for grading of Land in towns.With GIS technology's development and ripeness,traditional handwork for grading of land in towns has gradually been replaced.The paper based on the Chibi city's practical situation,combine the methods of mufti-factor comprehensive appraisal and the Calculation Method of Differential Profit to accomplishes the Chibi city's urban land grading work.The major research content is as follows.1.Basic Theories.Discuss the development and basic theory structural model of the gradation and classification on urban land which based on the GIS technology,and the factors system which impact of urban land quality.2.Spatial AnalysisWith the reference book Regulations for gradation and classification on urban land the paper probes into Specific methods to how to divide rating unit and find out specific calculation methods by GIS.3.Database DesignBuild Chibi city's database which is ground on the ArcGIS and analyses the Data-processing methods,database structural design,as well as Data table structure which effect factor data storage.4.Classification Process ModelIn this part the main work is build and discuss the principle,flow and the relevant parameters setting of the Model,and explain the combination among them.5.Chibi city's Land Grading According to collected data from the city build the urban Land Grading System, straighten up and deal with the impact data by Spatial Analysis,then accomplish the Chibi city's urban land grading work. |
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