城市建成区扩展
蒋宇超等
Source document (2019)
Using historical documents, ancient maps, survey maps of the Republican period, and remote sensing images, this paper restores the urban built-up area boundaries of the 56 cities in Jiangsu-Shanghai region since the Ming Dynasty. The paper selects the expansion rate, expansion intensity, power-law distribution index, fractal dimension, compactness, and migration distance of city gravity center to analyze the urban evolution process in terms of city scale and spatial form. At the same time, the paper uses the panel data model to analyze the possible factors that influence the expansion of urban built-up areas. The results show that: (1) the size of urban built-up areas in Jiangsu- Shanghai region has increased significantly over the past 600 years, and the total area of the study area has expanded by 59.9 times, among which the main city of Wuxi has expanded by 346.7 times; (2) the process of the expansion can be divided into five stages: the breeding stage, the embryonic stage, the initial stage, the acceleration stage, and the upgrading stage; (3) during the 600 years, the difference in the size of urban built-up areas in the study area tends to decrease, and the number of large cities has increased; (4) in terms of spatial 近六百年来城市建成区扩展过程与特征分析* ——以苏沪地区为例蒋宇超金晓斌覃丽君薛樵风成一农龙瀛杨绪红周寅康 JIANG Yuchao; JIN Xiaobin; QIN Lijun; XUE Qiaofeng; CHENG Yinong; LONG Ying; YANG Xuhong; ZHOU Yinkang 【作者简介】 蒋宇超(1994-)，男，南京大学地理与海洋科学学院， 硕士研究生。 金晓斌(1974-)，男，南京大学地理与海洋科学学院， 南京大学自然资源研究中心，教授，博士生导师，本文通信作者。 覃丽君(1993-)，女，南京大学地理与海洋科学学院， 硕士研究生。 薛樵风(1991-)，男，南京大学地理与海洋科学学院， 博士研究生。 成一农(1974-)，男，云南大学历史与档案学院，教授，博士生导师。 龙瀛(1980-)，男，清华大学建筑学院，清华大学恒隆房地产研究中心，特别研究员，博士生导师。中国城市规划学会城市规划新技术应用学术委员会副主任委员。 杨绪红(1988-)，男，南京大学地理与海洋科学学院， 南京大学自然资源研究中心，助理研究员。 周寅康(1962-)，男，南京大学地理与海洋科学学院， 南京大学自然资源研究中心，教授，博士生导师。 * 国家自然科学基金项目 (41671082) 资助。 PROCESS AND CHARACTERISTICS OF URBAN BUILT-UP AREA EXPANSION IN JIANGSU-SHANGHAI REGION IN THE PAST 600 YEARS 近六百年来城市建成区扩展过程与特征分析蒋宇超金晓斌覃丽君薛樵风成一农龙瀛杨绪红周寅康 56 城市规划 CITY PLANNING REVIEW 2019年第43卷第12期 VOL.43 NO.12 DEC. 2019 Planning Studies 规划研究 form, with the expansion of city scale, the urban form has become more complicated, the fractal dimension has increased, and the compactness of the urban form has decreased; (5) regarding the shift of the city gravity center, most cities in the plain area have expanded around the original cities evenly and the migration distances of the gravity centers are less than 3.5 km; (6) the expansion of city scale is greatly influenced by local economy and population, and its correlation with the urban administrative level is weak;