开发区土地集约利用评价方法对比研究

开发区土地集约利用评价方法是全面客观评价开发区土地集约利用状况的关键要素。以南京市12个开发区为实证对象,尝试采用物元分析法和多因素综合评价法对开发区土地集约利用水平进行评价对比分析,并与土地集约利用效率评价结果对比分析,以期探求更合适的土地集约利用水平评价方法。研究结果表明:(1)南京各开发区集约用地主要限制因子各不相同,主要是企业用地容积率、企业用地建筑密度、建设用地投入强度和建设用地产出强度;南京各开发区之间的集约用地水平呈现出明显的差异,国家级开发区集约等级相对高于省级开发区,高新技术开发区集约等级相对高于传统经济类开发区;(2)相较于多因素综合评价法,物元分析法不但能反映研究对象的综合信息还能反映单个指标分异情况以及研究对象所处状态的稳定性,反映的信息更丰富;土地集约利用水平评价结果与土地集约利用效率评价结果排序具有一定差异,表明未来开发区不但要提高其集约利用水平更要提高集约利用效率。

A COMPARATIVE STUDY ON EVALUATION METHODS OF LAND INTENSIVE UTILIZATION IN DEVELOPMENT ZONE

The choice of evaluation method of land intensive use is the key factor for comprehensive and objective reflection of intensive land use in development zones.In order to explore a more suitable evaluation method,this paper evaluated 12 development zones in Nanjing City,by using matter-element model and comprehensive evaluation method to analyze the land intensive use level and efficiency.The results showed that:The main limiting factors of intensive land use in Nanjing development zones are different due to the main factors like volume ratio of enterprise land,building density of enterprise land,input intensity of construction land,and output intensity of construction land and so on;There are significant differences of intensive land level among Nanjing's Development Zones.For example,the intensive level of National Development Zone is higher than Provincial Development Zone,and the Hi-tech Development Zone is higher than the traditional economic development zone.Compared with the comprehensive evaluation method,the matter-element model can not only response comprehensive information of the research object,but also can reflect the distribution of single index and the stability of research object.The rank of intensive land use is different from the land intensive use efficiency,it showed that the development zone should not only improve its intensive utilization level,but also improve the intensive use efficiency.