近10年甘肃省城市用地综合效益及其内部协调度研究

城市用地是城市形成和发展的基础与载体，城市用地效益是城市效益的直接体现，本文以甘肃省12个城市为对象，建立甘肃省城市用地综合效益评价指标体系，定量测算了2002—2011年甘肃省各城市用地的社会经济与城市环境效益间协调度变化过程，以此揭示甘肃省城市用地综合效益空间分布特征。结果表明:甘肃省12个城市的城市用地综合效益整体都有所上升，尤其是城市用地经济效益增长明显，城市用地综合效益内部构成开始出现均衡增长态势，基本均衡城市由2002年的2个城市（嘉峪关市、金昌市和酒泉市），增加到2011年的5个城市（金昌市、白银市、天水市、武威市、张掖市和酒泉市）；从城市用地社会经济效益和生态环境效益间的协调状况，中度协调的城市由2002年2个城市（酒泉市和嘉峪关市），增加到了2011年5个城市（新增张掖市、金昌市和兰州市）。甘肃省全省各城市不仅城市用地综合效益不断提高，并且内部构成效益间协调性增大，协调型城市增多。

Research of Urban Land Comprehensive Benefit and Internal Harmony Degree of Gansu Province from 2002-2011

Urban land is the foundation for the city formation and development and urban land use efficiency is the direct embodiment of urban efficiency. In this paper, 12 cities in Gansu province were selected as the cases, and the index of urban land use comprehensive benefit evaluation was established to estimate the harmony degree between social economy and urban environmental benefit change process of the cities in Gansu province from 2002 to 2011 in order to reveal the spatial distribution characteristics of the urban land use integrated benefits in Gansu province. The results showed that the urban land comprehensive benefits of 12 cities in Gansu province increased, especially the economic benefits of urban land growth; urban land comprehensive benefit of internal format began to appear balanced growth trend, 3 cities (Jiayuguan, Jinchang and Jiuquan)belonged to the basic balanced cities in 2002, but in 2011, the five balanced cities included Jinchang, Baiyin, Tianshui, Wu wei, Zhangye, Jiuquan; with respect to urban land of coordination between social economy and ecological environment benefit, in 2002 moderate harmonious cities included 2 cities (Jiuquan and Jiayuguan), in 2011 five cities (Jiuquan, Jiayuguan, Zhangye, Jinchang and Lanzhou) were characterized as the moderate harmonious cities. All cities in Gansu province are not only the comprehensive benefit of increasing the urban land, and the coordination between internal efficiency increases and the number of more harmonious cities increases.