城市中心区空间波动拓展及周期理论探析  

VOLATILE SPATIAL EXPANSION OF URBAN CENTRAL AREA AND ITS CYCLE THEORY

作　　者：胡昕宇[1] 杨俊宴[1] 史宜[1] 

机构地区：[1]东南大学建筑学院

出　　处：《城市规划》2016年第5期68-76,共9页City Planning Review

基　　金：国家自然科学基金项目(51278114);中央高校基本科研业务费专项资金资助项目(2242014Y10002);江苏省普通高校研究生科研创新计划资助项目(CXZZ13_0128)

摘　　要：通过测算南京等城市中心区发展过程,发现了城市中心区用地规模与用地强度指标增长的空间波动拓展现象。从形态学的角度对城市中心区空间形态波动拓展的深层次规律进行研究,提出中心区"规模-强度"交替拓展模型,即在市场经济的环境下,中心区通过自组织形成了其空间发展机制,使中心区交替处于外部扩张期与内部填充期,并表现为用地规模、用地强度两项指标的周期性交替增长。新街口中心区1978-2013年形态发展数据的量化实证研究证明,中心区空间规模的波动拓展与社会投资存在明显的互动规律。该拓展模型的运作可以解释为"溢出-回波"空间博弈、"收益-成本"经济博弈与"市场-政策"政策博弈三方面综合影响的结果,据此可为把握城市中心区的形态演化规律提供有益的参考。By observing the development process of urban central areas in Nanjing, Shanghai, and Hong Kong, this paper finds the volatile spatial expansion phenomenon of land use scale and land use intensity in urban central areas. It further summarizes the deep laws of the spatial changes of urban central area from a morphological perspective and proposes a ＂land scale-intensity＂ alternative expansion model. In other words, under the market economy, the spatial development mechanism that urban central areas form through self-organization leads to them in the periods of external expanding or internal filling alternatively and the alternative growth of land use scale and land use intensity. The quantitative empirical study on the morphological development data of Xinjiekou downtown area of Nanjing from 1978 to 2013 proves that there is a significant interaction between the volatile spatial expansion of urban central area and social investment. The alternative expansion model can be interpreted as the result of the joint influence of the ＂spill-echo＂ game, ＂proceeds-cost＂ game, and ＂market-policy＂ game. This provides a reference for understanding the spatial expansion law of urban central areas.

关 键 词：城市中心区 拓展模式 周期性波 动 量化分析 

分 类 号：TU984.113[建筑科学—城市规划与设计]