南京城市扩展与其空间增长管理的研究

URBAN EXPANSION AND ITS SPATIAL GROWTH MANAGEMENT IN NANJING

城市的空间扩展是城市化发展的直接体现 ,透过对城市扩展的分析研究 ,可以加深对城市化本质的理解 ,并可为城市可持续发展提供有效的空间决策资讯。本文选取南京城市扩展作为分析的具体案例 ,在充分认识和剖析自然景观、区域经济及城市用地结构特征等条件基础上 ,揭示了南京城市扩展的空间动态过程及其诱导性因子。基于对城市总体规划的概念性理解 ,论文概括了南京城市空间增长的基本管理措施 :即 ,外围总体控制———框定主城区 ;主城内部空间的分片管理—结构优化 ;

s: At present, with the acceleration of urbanization in ou r countr y, the research on the phenomena of urbanization has caught much more attention, even become a central topic for discussion. Yet the direct spatial materializat ion of urbanization is urban spatial expansion. It will enhance the understandin g for the essence of urbanization, and provide sufficient information for the po licy-making about urban spatial sustainable development. The article chooses ur ban spatial expansion of Nanjing as its case study. On the base of deep cognitio n and anatomy on natural landscape, regional economy and urban land use structur al feature etc, the spatial dynamic procedure of urban expansion in Nanjing and its influential factor are exposed. Based on the analysis on the feature of eco nomic development and demography in Nanjing, the paper concludes: Nanjing is in the phase of urbanization acceleration, and urban spatial concentration developm ent appears more and more obvious, meanwhile there exists analogously ring-type and spatial sprawl expansion for urban land use. With the fast development of u rban space, there also appear serious internal structural issues for future deve lopment. Moreover, from the view of analysis on urban spatial network, with the further growth of urban space, the pattern of spatial structure in Nanjing gradu ally evolves from the type of geometric shape to that of freeness, which embodie s the transition of organic combination from structural close to structural open ness. Finally, based on the conceptual apprehension on urban general planning, t he article generalizes the basic management strategy for urban spatial growth co ntrol: namely, 1) General control from outer designated ring—confine the ma in cities building area; 2) zoning management for internal space in the main c ities building area—structural optimizing; 3) spatial organizing in metropoli s development zone at regional level-spatial guide from outer area. In a word, the paper focuses on the urban spatial expansion under the background of urbaniz ation as well as management patterns for urban spatial growth. From the experien ce of Najing city case study, it will provide scientific and effective base for metropolis sustainable development.