南京城镇空间形态的度量和分析

进入20世纪80年代，中国的城市化进程开始加快，城市化使城镇空间结构发生迅速的变化，并伴随着城镇形态的变化。城镇形态的变化不仅反映了城镇发展的方向、发展规模的变化，也反映了城镇与自然环境的关系，揭示了城镇发展与区域空间结构的关系。对城镇形态的定量化研究不仅深化城镇空间结构和城镇化的理论研究，而且有助于城镇规划的科学性，包括城镇的发展方向、发展规模、发展速度的优化和调控等。主要以南京市域城镇为案例，利用遥感技术的仿归一化植被指数法，提取2000年9月份南京Landsat TM影像上的城镇空间信 息，并用定量的方法，对城镇形态进行度量、分类，最后根据分类结果分析了城镇形态形成的背景和机制。据此，为城镇化进程中的城镇发展规划提供科学的参考依据。

MEASUREMENT AND ANALYSIS OF SPATIAL PATTERN IN NANJING

The urbanization has been developing fast since 1980's, which resulting in rapidly changes of urban patterns. The change of urban patterns not only reflects the change of direction and development scale of a very vague and rough city, but also shows the relation between a city and its natual environment and regional spatial structure. But up to now we still depict the urban pattern in qualitative methods, resulting in study in urban pattern. So it is important to find a quantitative way to describe urban pattern. A research of quantitative analysis on urban pattern can not only strength theoretical research of urban spatial structure and urbanization, but also provide scientific bases, including regulation of urban development direction, development scale, and development speed. This paper applies quantitative methods to measure and classify urban pattern. And then according to results of classification, we analyze background and mechanism of various urban patterns in order to provide scientific reference basis for urban development plan in urbanization process.