安徽省城市建设用地变化及驱动力分析

基于安徽省17个地级市的各类土地利用变化数据,采用典型相关分析、主成分分析和偏最小二乘回归分析等方法,分析安徽省2000~2011年建设用地的数量变化、结构变化及区域差异变化,探讨城市建设用地变化的主要驱动力。研究表明:安徽省城市建设用地面积以每年5.8%的速度不断增长;安徽省城市建设用地系统结构性增强,系统从无序向有序方向发展;从安徽省各市建设用地变化的区域特征来看,各市的建设用地相对变化率差异明显,东部、中部和南部地区变化幅度较大,西部和北部建设用地变化的幅度相对较小;居民生活水平的提高与经济发展、道路设施完善是安徽省城市建设用地变化的主要驱动力。

ANALYSIS ON URBAN COSTRUCTION LAND CHANGE AND DRIVING FORCES IN ANHUI PROVINCE

In this study, we analyzed the changes of number and structure, and regional differences of construction land using various types of land use data of 16 cities in Anhui Province, and the canonical correlation analysis, principal component analysis and partial least square regression. Meanwhile we discussed the main influence factors and degree of urban construction land change. The results are shown as follows. The urban construction land of Anhui Province increased at an annual rate of 5.8% and the structure of urban construction land was reasonable. From the regional characteristics of the change of construction land of various cities in Anhui Province, the relative change rate of construction land use of the cities was distinct and the change in the eastern, central and southern regions was more apparent, and the change in the northern and western regions was relatively stable. The development of economy and the improvement of transport infrastructure and the improvement of people's living standards were the main driving factors in the urban construction land change in Anhui Province.