平潭县城镇用地空间扩张特征与驱动力分析  

Analysis on Characteristics of Urban Land Spatial Expansion and Driving Force in Pingtan County

作　　者：洪武扬[1] 李飞雪[1] 

机构地区：[1]南京大学地理与海洋科学学院,江苏南京210023

出　　处：《河北师范大学学报（自然科学版）》2013年第6期626-630,共5页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金(40901184);教育部博士点基金(20090091120028)

摘　　要：研究城市空间扩张的形态特征和动力机制对解决城市化问题具有重要意义.以福建东部海岛型城镇平潭县为例,借助遥感和GIS技术方法,通过提取主城区城镇用地遥感信息,探讨平潭县主城区城镇扩张的空间特征和驱动机理.结果表明,平潭县主城区城镇用地在东部和南部方向扩张明显,西北方向增长较为缓慢,城镇重心向东南方向偏移;建设用地紧凑度指数变大,城镇扩张呈现良性态势,未来将形成趋于圆形的城市发展格局;平潭县城镇扩张是自然、经济、社会诸多因素综合作用的结果.Research on morphological characteristics and dynamic mechanism of urban expansion is vital to solve urbanization problems. This article took Pingtan county,an island-town located on the eastern seashore of Fujian province,as the study area. By extracting construction land information in Pingtan county, the morphological characteristics of the main urban area spatial expansion were summarized and the driving mechanism of urban land growth was investigated,using remote sensing and GIS comprehensively. The resuits showed that urban land spatial expansion of Pingtan county was quite distinct,mainly concentrated in eastern and southern parts, while the growth in northwest area was relatively slow. The county center shif- ted along the southeast direction. The compact index of construction land in the main urban district increased,which showed a healthy development momentum,and it gradually formed a similarly round pattern of urban development. The urban spatial expansion was a result of integrated natural, economic and social factors.

关 键 词：遥感 城镇扩张 海峡西岸经济区建设 平潭县 

分 类 号：F292[经济管理—国民经济]