中文摘要：

利用基于多准则判断的城市边缘区界定法,对广州市1990、2000及2009年的城市边缘区时空演变特征进行分析,研究结果表明：①广州市发展模式已经从＂单核心＂扩展模式逐渐转变为＂点-轴＂扩展模式,最终将形成以＂多核心＂为典型特征的广州大都市区;②1990年初期,广州市处于城市化加速期,整体显得较为粗放、混乱、无序。2000年以后,广州市城市发展战略重心向南部移动;③城市空间扩张与破碎度变化规律具有同步性和相似性,城市核心区的破碎度变化幅度对城市化水平具有指示作用;④城市边缘区是一种极其敏感与不稳定的时空综合体。发展初期多表现为不连续的、破碎,进入发展后期,其空间形态变得连续、紧凑,这种从无序到有序的现象将伴随着城市边缘区发展的始终。研究结果可为城市战略发展规划及城乡一体化建设提供理论支持和合理化建议。

英文摘要：

As an important part of urban region structure, urban fringe is the most sensitive area with acute contradictions in modern urban system. Deeply research on the regulation of the regional spatial variation is very important for promoting urban construction and regional development. The method of multiple criteria was used to analyze the spatial evolution of the urban fringe in Guangzhou for 1990, 2000 and 2009. The result shows that ： ① The development mode of Guangzhou has gradually changed from ＂single core＂ expansion to ＂point-axis＇ expansion, and a metropolitan area with ＂muhi-cores＂ will be eventually formed.② At the beginning of 1990s, Guangzhou was in the process of urbanization accelerated phase, and the urbanization was extensive and disordered. Since 2000, the overall strategic development center has moved to the south of Guangzhou.③The urban expansion and fragmentation are of synchronization and similarity, the variation extent of degree of fragmentation can indicate the level of urbanization. ④Urban fringe is a spatial-temporal complex, which is extremely sensitive and unstable. In the early stage of development, it is no-continuous and broken, and later it becomes continuous and compact. This phe-nomenon from disorder to order occurs throughout the development of the urban fringe. The result can provide theoretical support and reasonable proposals for strategic development plan and the integration of urban and rural construction.