江苏省城市土地集约利用与城市化水平协调发展研究

Coordinated Development between Urban Land Intensive Use and Urbanization Level in Jiangsu Province

以江苏省为例,分别建立城市土地集约利用及城市化水平评价指标体系,运用全局主成分分析法,对2000年-2009年城市土地集约利用与城市化水平进行评价,在此基础上描述了两者的时间变化和时空差异特征,并运用协调发展评价模型对两者之间的协调度进行了分析。结果表明,江苏省城市土地集约利用与城市化水平均总体呈现上升趋势,但地区之间的差异较大,大致表现为苏南地区>苏中地区>苏北地区。从空间特征看,江苏省各个市土地集约利用与城市化水平协调度总体朝着有序的方向发展,两者之间的协调性不断增强,在空间上具有明显的聚集特征,同时也和区域经济发展水平有着较显著的正相关关系。

Urbanization is an inevitable requirement as well as a result of industrial development, and urban land intensive use is also necessary for the development of a city. However, along with the rapid development of urbanization, the contradiction between urbanization and land utilization is getting more and more obvious and tense. The main points of view on the relationship between the two are： urban construction promotes the urban land intensive use; at different stages of urbanization, urban land use is corresponding to intensive strength, use form and type; the premise of studying urban land intensive use is the full study on urbanization level and it＇ s development stage and features. This paper, taking Jiangsu Province as an example, has made a study on spatial differences as well as coordination between land intensive use and urbanization. With evaluation index systems of the two and global principal component analysis, we have evaluated the level of land intensive use and urbanization from 2000 to 2009 and then analyzed the temporal and spatial characteristics of them. Meanwhile, on the basis of an evaluation model of coordinated development, the coordinated degree was analyzed. The results show that： in the aspect of temporal characteristics, the levels of land intensive use and urbanization are both increasing, however, they vary in different regions--the southern area ranks the top, followed by central area and then northern area; in the aspect of spatial characteristics, the coordination between land intensive use level and urbanization level is increasing, which shows obvious gathering characteristics and significant spatial correlation. Moreover, the coordination presents a close positive correlation with regional economic development level.