基于熵值法的四川省城市土地集约利用评价

城市土地集约利用对于提高城市土地利用效率,缓解城市发展过程中的人地矛盾,促进城市经济发展具有重要意义。从土地投入强度、土地产出效益、土地利用强度三个方面建立指标体系,运用熵值法对四川省18个城市进行土地集约利用程度评价,运用ArcGIS生成空间结构图,分析土地集约利用程度空间结构特征。结果表明:四川省城市土地集约利用受土地投入强度和土地产出效益影响较大,受土地利用强度影响较小。从空间结构来看,四川省中部城市土地集约利用程度最高,东部城市次之,西南部城市土地集约利用程度最低。基于以上结果,为提高城市土地集约利用程度提出建议。

Urban Land Intensive Utilization Evaluation in Sichuan ProvinceBased on the Entropy Value Method

Urban land intensive utilization is of great significance to improve the efficiency of urban land utilization, alleviate the contradictory of people in the urban development process, promote the city''s economic development. Setting index system from three aspects of intensity of land investment, land output efficiency and land use intensity, we use the entropy method to evaluate land intensive utilization degree of 18 cities in Sichuan province. Generated spatial distribution maps using ArcGIS spatial distribution, we analyze land intensive utilization degree of spatial structure. The results show that urban land intensive utilization of city of Sichuan Province are greatly influenced by land into strength and output efficiency, less affected by the intensity of land use. From the point of spatial distribution, the highest degree in the central Sichuan province urban land intensive utilization, the eastern city of times, southwestern city land intensive utilization degree of the lowest. Based on the above results, we give suggestions for improving the urban land intensive utilization degree