城市土地可持续利用评价研究——以南京市为例

城市土地利用系统是一个典型的“生态-经济-社会”复合系统，对其可持续利用水平进行综合评价涉及到的指标多而复杂。从影响城市土地可持续利用的资源、社会、环境和经济等方面综合考虑，选取了耕地面积、粮食产量和年末总人口等15个相关指标，运用主成分分析方法，对南京市1995-2002年的土地利用状况进行综合评价。结果表明，用主成分分析方法对城市土地可持续利用水平进行综合评价，其评价结果与南京市的实际相符，具有一定的实用性和可操作性。

Research on Evaluation of Urban Sustainable Land-use——A Case Study of Nanjing City

The urban land utility was a system that composed of ecology, economy and society. Evaluation for the sustainability of urban land- use related to many indexes, this paper selected 15 indexes such as land area, food output and the population. Based on principle component analysis, the sustainability of urban land in Nanjing from 1995 to 2002 were evaluated. It was suggested that PCA was an effective method for many indexes on the assessment for urban land sustainable use.