Based on the theory of information entropy, time series and spatial variation of land use changes of Bijie City in 2009-2013 were analyzed from different dimensions such as land use degree and land use diversity. The ...Based on the theory of information entropy, time series and spatial variation of land use changes of Bijie City in 2009-2013 were analyzed from different dimensions such as land use degree and land use diversity. The result showed that in 2009-2013, the forest vegetation was well protected, and the construction land was under reasonable expansion under the influence of economic development, the land use degree of which developed gradually to width and depth, and the trend of information entropy showed a graduate increase, indicating that land use scale became more reasonable and the area of different land type became more balanced in Bijie in the period. The study results showed that land resources in Bijie City were used rationally under the strategy from central government local government,and Bijie was in the benign development of economic development—resource distribution—scale change. Moreover, Bijie chould further improve land use pattern such as redevelop stock construction land, optimize the industrial land use pattern and mountain agricultural land development in the future.展开更多
This paper introduces a GIS based methodology to generate dynamic process model for the simulation based analysis of a sensitive rural watershed.The Direct Computer Mapping(DCM)based solution starts from GIS layers an...This paper introduces a GIS based methodology to generate dynamic process model for the simulation based analysis of a sensitive rural watershed.The Direct Computer Mapping(DCM)based solution starts from GIS layers and,via the graph interpretation and graphical edition of the process network,the expert interface is able to integrate the field experts’knowledge in the computer aided generation of the simulation model.The methodology was applied and tested for the Southern catchment basin of Lake Balaton,Hungary.In the simplified hydrological model the GIS description of nine watercourses,121 water sections,57 small lakes and 20 Lake Balaton compartments were mapped through the expert interface to the dynamic databases of the DCM model.The hydrological model involved precipitation,evaporation,transpiration,runoff,infiltration.The COoRdination of INformation on the Environment(CORINE)land cover based simplified‘‘land patch”model considered the effect of meteorological and hydrological scenarios on freshwater resources in the land patches,rivers and lakes.The first results show that the applied model generation methodology helps to build complex models,which,after validation can support the analysis of various land use,with the consideration of environmental aspects.展开更多
基金Supported by the Mutual Fund Project for Soft Science Research of Guizhou Science and Technology Department and Guizhou University of Finance and Economics(Qiankehe LH[2013]7249)~~
文摘Based on the theory of information entropy, time series and spatial variation of land use changes of Bijie City in 2009-2013 were analyzed from different dimensions such as land use degree and land use diversity. The result showed that in 2009-2013, the forest vegetation was well protected, and the construction land was under reasonable expansion under the influence of economic development, the land use degree of which developed gradually to width and depth, and the trend of information entropy showed a graduate increase, indicating that land use scale became more reasonable and the area of different land type became more balanced in Bijie in the period. The study results showed that land resources in Bijie City were used rationally under the strategy from central government local government,and Bijie was in the benign development of economic development—resource distribution—scale change. Moreover, Bijie chould further improve land use pattern such as redevelop stock construction land, optimize the industrial land use pattern and mountain agricultural land development in the future.
基金The research is supported by the Hungarian‘Social Renewal Operational Programme’in the frame of the TA´MOP-4.2.2.A-11/1/KONV-2012-0038 projectas well as by the Bilateral Chinese-Hungarian project in the frame of TE´T_12_CN-1-2012-0041 project.
文摘This paper introduces a GIS based methodology to generate dynamic process model for the simulation based analysis of a sensitive rural watershed.The Direct Computer Mapping(DCM)based solution starts from GIS layers and,via the graph interpretation and graphical edition of the process network,the expert interface is able to integrate the field experts’knowledge in the computer aided generation of the simulation model.The methodology was applied and tested for the Southern catchment basin of Lake Balaton,Hungary.In the simplified hydrological model the GIS description of nine watercourses,121 water sections,57 small lakes and 20 Lake Balaton compartments were mapped through the expert interface to the dynamic databases of the DCM model.The hydrological model involved precipitation,evaporation,transpiration,runoff,infiltration.The COoRdination of INformation on the Environment(CORINE)land cover based simplified‘‘land patch”model considered the effect of meteorological and hydrological scenarios on freshwater resources in the land patches,rivers and lakes.The first results show that the applied model generation methodology helps to build complex models,which,after validation can support the analysis of various land use,with the consideration of environmental aspects.
