Spatiotemporal evolution of urban form and land-use structure in Hangzhou, China: evidence from fractals
Spatiotemporal evolution of urban form and land-use structure in Hangzhou, China: evidence from fractals
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中国杭州城市形态和土地利用结构的时空演化：来自分形的证据
DOI：
10.1068/b35078
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发表时间：
2010-09-01
期刊：
影响因子：
--
通讯作者：
Chen, Yanguang
中科院分区：
文献类型：
--
作者：
Feng, Jian;Chen, Yanguang
利用1949、1959、1980和1996年的城市土地利用图，运用分形理论，分析了杭州城市形态和土地利用结构的演变特征。我们发现，自相似性存在于建成区和市政区，分形特性往往成为更好地定义随着时间的推移。各土地利用类型的分维值均小于所有土地利用类型的分维值。从1980年到1996年，居住用地、工业用地和对外交通用地的分形维数增加，教育用地和旅游用地的分形维数减小，表明杭州城市自组织演化过程中，局部退化伴随着整体优化。探讨了杭州城市形态时空演变的机制，包括社会经济发展和城市活动的分散或集中。城市空间扩张的“摊大饼”式、城市建设的“尖峰茶镇”式以及自上而下的城市管理方式导致了中西方城市分形演化的差异。
Using fractal theory and urban land-use maps for 1949, 1959, 1980, and 1996, this study is devoted to analyzing the evolutionary features of urban form and land-use structure in Hangzhou, China. We find that self-similarity exists in both the built-up area and the municipal area, and fractal properties tend to become better defined with time. The fractal dimension of each type of land use is less than that of all land use. From 1980 to 1996, the fractal dimensions of residential, industrial, and external transport increased while those of educational and virescent land use decreased, indicating that partial degradation accompanied holistic optimization during the process of Hangzhou's self-organizing evolvement. The mechanisms of the spatiotemporal evolution of urban form in Hangzhou are discussed, including socioeconomic development and the dispersal or concentration of activities. The Tandabing approach to urban spatial expansion, the Jianfengchazhen approach to urban construction, and a top-down urban management style led to differences in fractal evolution between Chinese and Western cities.