基于改进TOPSIS法的城市土地利用绩效评价及障碍因子诊断——以重庆市为例  

An Evaluation of Urban Land Use Performance Based on the Improved TOPSIS Method and Diagnosis of Its Obstacle Indicators: A Case Study of Chongqing

作　　者：鲁春阳[1,2] 文枫[1] 杨庆媛[3] 陈琳琳[3] 宗会明[3] 

机构地区：[1]河南城建学院,平顶山467001 [2]西南大学资源环境学院,重庆400715 [3]西南大学地理科学学院,重庆400715

出　　处：《资源科学》2011年第3期535-541,共7页Resources Science

基　　金：国家"十一五"科技支撑计划(编号:2006BAJ14B04-02);重庆市国土资源局资助课题:"城市土地利用绩效评价指标体系研究"

摘　　要：城市土地利用绩效评价及障碍因子诊断是城市土地可持续利用的重要基础。论文从土地投入水平、土地利用程度、土地利用效益、土地利用可持续性四个方面构建了城市土地利用绩效评价指标,采用改进TOPSIS法和障碍度模型,根据重庆市1997年-2007年的城市土地利用数据和社会经济统计资料,评价其土地利用绩效水平及障碍因子。结果显示:①重庆市城市土地利用绩效逐渐提升,1997年-2007年绩效指数从0.1866增加到0.7707,土地绩效程度经历了低级绩效—中级绩效—良好绩效的演变历程;②2005年以前,土地利用生态可持续性是影响城市土地利用绩效的最大障碍因子,其中人均公共绿地面积的影响最大;2005年后,土地投入水平是最大障碍因子,地均从业人数的影响最大;③长远来看,土地利用程度是影响城市土地利用绩效的首要因素。土地利用程度和土地投入水平障碍度以年均9.66%、1.47%的速度增加,而土地利用效益和土地利用生态可持续性障碍度以年均3.00%和1.44%的速度下降。最后,根据重庆市城市土地利用绩效现状提出提升土地利用绩效的主要路径。Evaluation of urban land use performance and diagnosis of its obstacle indicators would be greatly helpful for sustainable land use. Most of cities are facing problems of extensive use of urban land. In order to promote the intensive use of urban land, this paper introduces a concept of urban land use performance and establishes a theoretical model to assess the land use performance. The evaluation index system was built with the indices of land use input level, land use degree, land use benefit, and land use sustainability, consisting of 14 evaluation indices. As urban land use is a complex multi-objective system, in the light of multi-objective making, the method of TOPSIS is used. It defines a measure in the target space, measuring the level of the target close to the ideal solution and away from the negative ideal solution. The Improved TOPSIS and obstacle degree model were jointly used. Based on investigation data of urban land use and social and economic statistic data, we calculated urban land use performance and its obstacle indicators of Chongqing Municipality. Results show that 1） the urban land use performance was gradually increasing, with the performance index increasing from 0.1866 to 0.7707 during the period 1997-2007. The degree of land use performance generally experienced three stages, i.e., low performance, medium performance, and good performance; 2） the obstacle degree of land use ecological sustainability was maximum, especially per capita green area. After 2005, the obstacle degree of the input level of land was maximum, especially per-land number of employees; and 3） in the long run, the land use degree was found to be the major factor affecting land use performance. The obstacle degree of land use degree and land input level increase by an annual average of 9.66% and 1.47%, respectively, but the obstacle degree of land use benefit and land use ecological sustainability decrease by an annual average of 3.00% and 1.44%, respectively. Finally, we put forward the main path to improve ur

关 键 词：城市土地利用 绩效 改进的TOPSIS 障碍度 重庆市 

分 类 号：F301.24[经济管理—产业经济]