广州市的蔓延机理与调控

The Mechanism and Adjustment of Urban Sprawl of Guangzhou

城市蔓延给城市的合理发展带来多方面的危害。广州市自20世纪80年代以来,城市蔓延日趋严重。大型项目的建设、城市机动化与快速交通的发展、外围地区房地产的发展以及行政区划的调整等多种因素,都不同程度地导致了广州的城市蔓延。广州现行的城市发展政策与空间策略并不能很好地起到控制城市蔓延的作用。要遏制城市的继续蔓延,需要运用精明增长的理念,注重提高增长的质量,尽快制定明确的城市增长边界,严格控制外围郊区大型房地产的发展,并防止城市的过度机动化。

Urban sprawl, which is deemed as the byproduct of ever-increasing automobiles and highways, has brought quite a lot of harm to the sound development of urban areas. Since the 1980s, Guangzhou, the center of the Pearl River Delta in southern China, has experienced a booming period. With the expansion of urban space, sprawl has become more and more serious. The construction of great projects, motorization and the fast growth of express transportation, large scale real estate developments at the fringe of urban areas, as well as the adjustment of local regionalism, has led to the sprawl of Guangzhou. However, the current developmental strategy and spatial policy of Guangzhou, such as blocking the register of new motorcycles, evacuating the spatial structure to obtain more space, setting-up a few bio-corridors, as well as developing central towns in outskirts, may not take effective effect to alleviate sprawl. In order to hold back the current sprawl tendency, Guangzhou should adopt the concept of Smart Growth, pay attention to the quality of growth, make out a clear urban growth boundary, tightly control the large scale estate developments in its suburbs, and prevent the urban areas from excessive mobilization.