深圳市土地利用效益变化及其区域分异  

Land Use Efficiency and Regional Differentiation in Shenzhen City,China

作　　者：叶敏婷[1] 王仰麟[1] 彭建[1] 吴健生[1] 

机构地区：[1]北京大学城市与环境学院

出　　处：《资源科学》2008年第3期401-408,共8页Resources Science

基　　金：国家自然科学基金重点项目(编号:40635028);国家自然科学基金项目(编号:40471002)

摘　　要：在高度城市化地区开展土地利用效益评价研究有助于衡量城市土地利用水平,实现城市土地高效协调利用。本文在明晰土地利用效益内涵的基础上,结合深圳区域土地利用特征,从社会效益、经济效益、生态效益、环境效益四方面,构建深圳市土地利用效益评价指标体系,综合评价深圳市土地利用效益及其时间动态与空间分异,并通过城市土地利用效益的协调度模型,评价土地利用各类效益的协调程度。研究表明,深圳市总体土地利用效益处于中等状态,社会、经济、生态和环境4个子系统基本协调。全市各区土地利用效益均处于持续增长状态,并体现出一定的区域差异,本文基于评价结果提出相应的针对性建议。Land use efficiency is one of the primary fields in urban land use study as it is an essential indicator for land use assessment. Land use efficiency refers to the direct outputs or effects brought by land use process. Land use efficiency is an integrated concept comprising four sub-systems： society, economy, ecology and environment. With rapid urbanization and industrialization, Shenzhen is facing serious land use-related problems. Based on the definitions of land use efficiency and the characteristics of urban development in Shenzhen, an indicator system for assessing land use efficiency was established using AHP, in which 21 indicators representing society, economy, ecology and environment were included. This paper presented the situation and trends of land use efficiency in Shenzhen city as well as its spatial variability. In addition, a coordination-degree model was created in order to evaluate the coordinated degree of each sub-system of land use efficiency. The results showed that land use efficiency in Shenzhen is of moderate. The coordinated degree is also increasing, from 0.0631 to 0.5412, and now at a moderate level. There are significant spatial variations among districts in terms of land use efficiency and coordinated degree. Futian and Luohu are among the highest in both, followed by Yantian. Nanshan is with higher coordinated degree and lower efficiency. Bao＇an and Longgang are with moderate coordinated degree but lower efficiency. From 2000 to 2004, land use efficiency in all districts was increasing, while change of coordinated degree was irregular The ultimate goal of land use in urban areas is to maximize and coordinate the land use system for higher efficiency. By assessing la_,id use efficiency and coordinated degree as well as analyzing spatial variation, existing deficiencies are outlined. In addition, the analyses of land use efficiency provide a foundation for policy options. This research presents some additional approaches to improve land use efficiency.

关 键 词：土地利用效益 协调度 空间分异 深圳市 

分 类 号：F293.2[经济管理—国民经济] S565.4[农业科学—作物学]