论文推送 | 全球的收缩城市：以LandScan全球人口数据集（2000–2019）为依据
本期为大家推介的内容为论文《全球的收缩城市：以LandScan全球人口数据集（2000–2019）为依据》(Shrinking cities on the globe: Evidence from LandScan 2000–2019)，发表在《Environment and Planning A: Economy and Space》，欢迎大家学习与交流。
近几十年来，城市收缩现象已经遍及全球，其特征是人口大量减少，经济下降和空间质量下降。为了在城市收缩的背景下保持全球经济繁荣并支持这一方向的决策，有必要在全球范围内准确地识别正在收缩的城市。我们利用重新定义的自然城市边界和LandScan全球人口数据集（2000-2019）来识别和绘制在全球范围内遭受人口流失和日渐缩小的城市。我们在2000-2019年期间发现了全球5004个收缩的城市，总面积为126,930平方千米。其数量和面积的比例分别为27％和22％。 收缩城市不断的聚集在一起，并且主要位于欧洲，亚洲东部和美国东北部。 在全球有41个国家拥有20个及以上规模的城市在收缩。 中国收缩的城市数量达到了679个，数量最多。伊拉克，伊朗，奥地利，南非，俄罗斯，格鲁吉亚和白俄罗斯等自然城市收缩率的中位数值> 50％，这表明这些国家的城市人口损失相对严重。我们的发现可用于通知决策者和城市规划者，以调整“以增长为导向”的规划范式并采用精确的策略以形成更健康的城市发展。
题目：《全球的收缩城市：以LandScan全球人口数据集（2000–2019）为依据》
（Shrinking cities on the globe: Evidence from LandScan 2000–2019）
作者：Xiangfeng Meng, Zhidian Jiang, Xinyu Wang, Ying Long
发表刊物：《》
DOI：10.1177/0308518X211006118
摘要ABSTRACT
Shrinking cities have spread across the globe in recent decades, characterizing significant population loss, economic decline, and decay in spatial quality. To maintain global economic prosperity in the context of urban shrinkage and support decision making in the direction, it is necessary to accurately identify shrinking cities on a global scale. We utilize redefined natural city boundaries and the LandScan dataset to identify and map shrinking cities experiencing population loss on the globe. As a result, we have identified 5004 shrinking cities worldwide, with a total area of 126,930 km2 during 2000–2019. The ratio of which in number and in area is 27% and 22%, respectively. The shrinking cities are clustered and mainly located in Europe, Eastern Asia, and northeastern United States. There are 41 countries with more than 20 shrinking cities on the globe. The number of shrinking cities in China reached 679, which is the most. Among the 41 countries, the median value of the natural cities’ shrinking ratios of Iraq, Iran, Austria, South Africa, Russia, Georgia, and Belarus is >50%, indicating that the urban population loss in these countries is relatively serious. Our findings can be used to inform decision makers and urban planners to adjust the “growth-oriented” planning paradigm and adopt precise strategies, to form a healthier urban development.
更多内容，请点击微信下方菜单即可查询。
请搜索微信号“Beijingcitylab”关注。
Email：BeijingCityLab@gmail.com
Emaillist: BCL@freelist.org
新浪微博：北京城市实验室BCL
微信号：beijingcitylab
网址: http://www.beijingcitylab.com
责任编辑：孟庆祥