RESEARCH ON THE URBAN SPATIAL EXPANSION UNDER ADMINISTRATIVE DISTRICT ADJUSTMENT——ACASE STUDYOF PANYUDISTRICT,GUANGZHOU
研究了广州番禺从1988到2004年建成区土地数量、时空格局和扩张模式，发现行政区划调整推动了城市化，但未促进管理创新和增长模式转型。
The purpose of this paper is to reveal the characteristics of the land quantity,space-time pattern,as well as the expansion mode of the built-up area of Panyu city,Guangdong province,which was turned from a small town to a metropolitan area in the past 20 years.The data obtained from LANSAP and TM/ETM images and spanning the five stages from 1988 to 2004 were analyzed with the assistance of Erdas and Arcgis software system in this paper.The results indicate that Panyu has been urbanized rapidly and its urban space has been expanded quickly since open door policy,which have accelerated the land use for city construction with self-organization as its leading mode of urban spatial expansion,especially after the Turning County into of Panyu in 1992.However,its dynamic mode of the expansion and the land using still inherited their former modes.The new urban planning of resulted in the change in Panyu's urban spatial expansion from its Self-organizationto Organization after Turning Panyu City into One District of Guangzhou in 2000 and the adjustment of administrative districts in 2005 respectively,which have brought on remarkable development of regional economy and urbanization in and Panyu,and its urban spatial expansion pattern is featured with implants growth,especially after the construction of universities' area.Although the adjustment of administrative districts satisfied the needs of the rapid urbanization and the urban spatial expansion,it hasn't yet stimulated the innovation of urban management system and transformation of growth model.The urban spatial expansion is influenced by several factors,such as the needs of economic and social development,resources allocation and marginal utility of urban expansion.So,unreasonable advancement and restriction on urban spatial expansion will do harm to the healthy and sustainable development of cities.