基于产业发展大数据的南京都市圈建成区扩张时空特征分析  

Spatial and Temporal Analyses of the Expansion of Built-Up Areas in Nanjing Metropolitan Area Based on Industrial Big Data

作　　者：王逸文 徐建刚[1] 刘迪 Wang Yiwen;Xu Jiangang;and Liu Di(School of Architecture and Urban Planning,Nanjing University,Nanjing 210008,China;School of Aeronautics and Astronautics,Sun Yat-sen University,Shenzhen 528406,China)

机构地区：[1]南京大学建筑与城市规划学院,南京210008 [2]中山大学航空航天学院,广东深圳528406

出　　处：《热带地理》2023年第5期821-836,共16页Tropical Geography

基　　金：国家自然科学基金项目:基于流域-城市雨洪生态调控模拟的海绵城市适应性规划方法研究(51778278);基于CAS-CA建模的山地城市适应性规划分析方法研究(51278239)。

摘　　要：随着长三角一体化发展升级为国家战略,南京都市圈城市一体化发展也进入新阶段。当前加盟区县城镇化水平及社会经济发展水平存在差异,合理规划产业布局,引导未来都市圈高质量发展,是当前所面临的关键问题。基于1990-2017年全域不透水面数据与企业大数据,采用空间形态定量评估、空间自相关分析以及区位熵评价等方法,对比过去28年南京都市圈建成区向外扩张与产业集聚发展的时空变化特征,探究南京都市圈的发展历程,以及不同产业对于都市圈空间发展的影响。研究发现:1)根据建成区扩展强度变化,南京都市圈建成区分布格局先是呈单核心圈层结构,2010年后演变成多核心;2)制造业集聚与建成区空间演进之间存在全局正相关性,但在2015年以后相关性有所降低;3)在劳动力密集且附加值低的制造业中,服装纺织、森工造纸和文体娱乐等产业的集聚过程,与建成区演进的正相关性先增后减。矿物加工业对建成区演进具有较强的推动力。南京都市圈正处于区域协调发展的关键时期,南京市应主动转移低端制造业到圈内其他地区,协同创新发展方式,持续提高自身首位度;都市圈其他地区应将土地资源投入从粗放型向效益型转变。With the integrated development of the Yangtze River Delta as a national strategy,urban development in the Nanjing metropolitan area has entered a new stage.However,facing the large differences between the newly joined districts and counties are the key issues of ensuring the driving role of Nanjing as a central city and guiding future high-quality development of the metropolitan area by planning the industrial layout.In this study,enterprise big data and impervious surface data were used as the sources to employ fractal theory,GIS spatial analysis,and other techniques to study the historical evolution characteristics of the built-up areas in the Nanjing metropolitan area.The spatial pattern changes of their expansion intensity have gone through three periods:1990-2000,2000-2010,and 2010-2017.The following stages were observed:1)In the first stage,the expansion intensity varied widely across the area with the overall pattern being unclear to date.2)In the second stage,a circular structure emerged gradually with high-value cores located in the main downtown area of Nanjing and the intensity of expansion decreasing from the core to periphery.3)In the third stage,the number of cores within the circle gradually increased to include Chuzhou Langya District,Huaian Qingjiangpu District,and the border area between Zhenjiang and Changzhou.Based on these stages,the spatial correlation between industrial agglomeration and spatial evolution of built-up areas in the Nanjing metropolitan circle were further analyzed using quantitative indicators such as the Moran index and locational entropy.The following results were obtained.1)A global positive correlation was observed between the agglomeration degree of manufacturing industries in the metropolitan circle and the spatial evolution intensity of built-up areas during 1990-2015;however,this global-level correlation has decreased in recent years owing to the slower development of manufacturing industries in some regions than the expansion of built-up areas.2)The structural diffe

关 键 词：企业大数据 产业发展 建成区 分形理论 空间自相关分析 南京都市圈 

分 类 号：TU984.113[建筑科学—城市规划与设计]