The County Land Use Structure Study Based On Information Entropy And Fractal Dimension

Land is the basic natural resource. It plays an extremely important fundamental role in the development of human society. And the results of the human activities are directly reflected in changes of the land use structure. Rational land use structure will promote a sustainable development of the use and exploitation of land resources, it can achieve better social, economic and ecological benefits, it can achieve a reasonable and beneficial cycle for the land use.Land use system is an open complex giant system. Considering the complexity of land use system, based on the perspective of system theory, in the process of the Hanshou county land use structure change study, this paper uses land use information entropy theory and fractal dimension model. And this paper analyzes and studys the the land use structure change of Hanshou county from 2005 to 2009. Eventually it obtains Some useful results. This research work include as follows:Firstly, the paper introduces briefly the the basic theory and method about information entropy and fractal geometry, secondly, the paper explains data sources, technical procedures, data content and database building flow of land use database which is established by the Second National Land Survey. Thirdly, the paper mainly describes and introduces the theory and analytical methods about information entropy of land use structure and fractal dimension which will be used in this paper. Fourthly, the information entropy and fractal dimension method are applied to land use structure evaluation of Hanshou County, and the paper introduces land use classification information entropy concept based on the weighted.And application examples are given.Fifthly, based on the index of information entropy and fractal dimension, the paper makes the analysis and summary about Hanshou county land use structure.Hanshou county land use structure information entropy is declining year by year. It indicates that the order of Hanshou county land use structure is increasing year by year, and the rationality of land use is improving. By the analysing the value of fractal dimension, it can obtain the situation of every land type in Hanshou county land use structure.Comprehensively applying the information entropy and fractal dimension method to evaluation and analysis of county land use structure change, it can provide a scientific basis for scientific management and rational utilizing.