A national-scale assessment of land subsidence in China's major cities

• 成果类型: Article
• 署名作者: Ao, Zurui; Hu, Xiaomei; Tao, Shengli; Hu, Xie; Wang, Guoquan; Li, Mingjia; Wang, Fang; Hu, Litang; Liang, Xiuyu; Xiao, Jingfeng; Yusup, Asadilla; Qi, Wenhua; Ran, Qinwei; Fang, Jiayi; Chang, Jinfeng; Zeng, Zhenzhong; Fu, Yongshuo; Xue, Baolin; Wang, Ping; Zhao, Kefei; Li, Le; Li, Wenkai; Li, Yumei; Jiang, Mi; Yang, Yuanhe; Shen, Haihua; Zhao, Xia; Shi, Yue; Wu, Bo; Yan, Zhengbing; Wang, Mengjia; Su, Yanjun; Hu, Tianyu; Ma, Qin; Bai, Hao; Wang, Lijun; Yang, Ziyan; Feng, Yuhao; Zhang, Danhua; Huang, Erhan; Pan, Jiamin; Ye, Huiying; Yang, Chen; Qin, Yanwei; He, Chenqi; Guo, Yanpei; Cheng, Kai; Ren, Yu; Yang, Haitao; Zheng, Chengyang; Zhu, Jiangling; Wang, Shaopeng; Ji, Chengjun; Zhu, Biao; Liu, Hongyan; Tang, Zhiyao; Wang, Zhiheng; Zhao, Shuqing; Tang, Yanhong; Xing, Hanfa; Guo, Qinghua; Liu, Yu; Fang, Jingyun
• 署名单位: South China Normal University; Peking University; Peking University; Peking University; University of Houston System; University of Houston; Southern University of Science & Technology; Peking University; Beijing Normal University; Southern University of Science & Technology; University System Of New Hampshire; University of New Hampshire; Hangzhou Normal University; Zhejiang University; Beijing Normal University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Guangdong University of Technology; Sun Yat Sen University; Chinese Academy of Sciences; Institute of Zoology, CAS; Sun Yat Sen University; Chinese Academy of Sciences; Institute of Botany, CAS; Zhengzhou University; Nanjing Normal University; Nanjing Normal University; Nanjing Normal University; Southwest Jiaotong University; Beijing Forestry University; Peking University; Hainan University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-12867
• DOI: 10.1126/science.adl4366
• 发表日期: 2024-04-19
• 页码: 301-306
• 关键词: sea-level rise; dataset; MODEL; generation; OIL

摘要

China's massive wave of urbanization may be threatened by land subsidence. Using a spaceborne synthetic aperture radar interferometry technique, we provided a systematic assessment of land subsidence in all of China's major cities from 2015 to 2022. Of the examined urban lands, 45% are subsiding faster than 3 millimeters per year, and 16% are subsiding faster than 10 millimeters per year, affecting 29 and 7% of the urban population, respectively. The subsidence appears to be associated with a range of factors such as groundwater withdrawal and the weight of buildings. By 2120, 22 to 26% of China's coastal lands will have a relative elevation lower than sea level, hosting 9 to 11% of the coastal population, because of the combined effect of city subsidence and sea-level rise. Our results underscore the necessity of enhancing protective measures to mitigate potential damages from subsidence.