城市土地利用绩效评价及障碍度诊断——以哈尔滨市为例

An Evaluation of Urban Land Use Performance and Diagnosis of Its Obstacle Degree——A Case Study of Harbin City

城市土地利用绩效评价及障碍度诊断是城市土地可持续利用和科学管理的重要依据。以哈尔滨市为研究区,从土地利用程度、土地利用效率、土地利用可持续性和土地管理4个方面构建城市土地利用绩效评价指标体系,采用熵权法计算权重、运用综合指数法评价2001—2008年城市土地利用绩效水平,并建立障碍度模型对影响城市土地利用绩效的障碍因子进行诊断。结果表明:哈尔滨市城市土地利用绩效水平总体呈上升态势,2001—2008年绩效指数从0.302 3增加到0.745 0。土地利用程度障碍度以年均8.98%的速度增加,而土地利用效率、土地利用可持续性和土地管理障碍度分别以年均0.62%,5.27%和9.16%的速度下降。土地利用程度是影响城市土地利用绩效的最大障碍因素,因此提高城市土地利用程度至关重要。

Evaluation of urban land use performance and diagnosis of its obstacle degree would be greatly helpful for sustainable land use and scientific management.This paper selects the Harbin City as the study area and establishes a theoretical model to assess the land use performance.The evaluation index system was built with the four indices of land use degree,land use efficiency,land use sustainability and land management.This paper used entropy method to calculate the index weight and evaluated the level of urban land use performance from 2001 to 2008 by the comprehensive index model,and built obstacle degree model to diagnose its obstacle indicators affecting urban land use performance.Results showed that the level of urban land use performance in Harbin City was generally upward,with the performance index increasing from 0.302 3 to 0.745 0 from 2001 to 2008.The obstacle degree of land use degree increased by an annual average of 8.98%,but the obstacle degree of land use efficiency,land use sustainability and land management decreased by an annual average of 0.62%,5.27% and 9.16%,respectively.The land use degree was found to be the biggest factor affecting urban land use performance and improving the urban land use degree is crucial.