...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecological Applications >Contemporary evolution and scaling of 32 major cities in China
【24h】

Contemporary evolution and scaling of 32 major cities in China

机译：中国32个主要城市的当代演变与扩展

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Most of the planet's population currently lives in urban areas, and urban land expansion is one of the most dramatic forms of land conversion. Understanding how cities evolve temporally, spatially, and organizationally in a rapidly urbanizing world is critical for sustainable development. However, few studies have examined the coevolution of urban attributes in time and space simultaneously and the adequacy of power law scaling across cities and through time, particularly in countries that have experienced abrupt, widespread, political and economic changes. Here, we show the temporal coevolution of multiple physical, demographic, socioeconomic, and environmental attributes in individual cities, and the cross-city scaling of urban attributes at six time points (i.e., 1978, 1990, 1995, 2000, 2005, and 2010) in 32 major Chinese cities. We found that power law scaling could adequately characterize both the cross-city scaling of urban attributes across cities and the longitudinal scaling describing the temporal coevolution of urban attributes within individual cities. The cross-city scaling properties demonstrated substantial changes over time signifying evolved social and economic forces. A key finding was that the cross-city linear or superlinear scaling of urban area with population contradicts the theoretical sublinear power law scaling proposed between infrastructure and population. Furthermore, the cross-city scaling between area and population transitioned from linear to superlinear over time, and the superlinear scaling in recent times suggests decreased infrastructure efficiency. Our results demonstrate a diseconomy of scale in urban areal expansion that indicates a significant waste of land resources in the urbanization process. Future planning efforts should focus on policies that increase urban land use efficiency before continuing expansion.
机译：大多数地球人口目前住在城市地区，城市土地扩张是最戏剧性的土地转换形式之一。了解城市在迅速城市化世界中，城市在空间，空间和组织如何在迅速的城市化世界中对可持续发展至关重要。然而，很少有研究已经检查了时间和空间的城市属性的共同区分，以及城市跨越城市权力缩放的充分性，特别是在经历突然，广泛，政治和经济变革的国家。在这里，我们展示了各个城市的多个物理，人口统计学，社会经济和环境属性的时间参与，以及在六个时间点（即1978,1990,1995,2000,2005和2010年的城市属性的交通城市缩放）在32个主要的城市。我们发现权力规模可以充分表征城市城市属性的跨城市缩放以及描述各个城市城市属性的时间参与的纵向缩放。交通城市缩放物业随着时间的推移表明了致力于发展的社会和经济力量的大量变化。一个关键的发现是，与人口的城市地区的跨城线或超连线缩放相矛盾，建议基础设施和人口之间的理论上载重管权力缩放。此外，从线性转换到超级线性的区域和群体之间的跨城径缩放，近次的超连线缩放表明基础设施效率降低。我们的结果表明，城市面积扩张规模不全，表明城市化进程中的土地资源大幅浪费。未来规划努力应专注于在继续扩张之前提高城市土地利用效率的政策。

著录项

  • 来源
    《Ecological Applications》 |2018年第6期|共14页
  • 作者

    SHUQING ZHAO; SHUGUANG LIU; CHUNXUE XU; WENPING YUAN; YAN SUN; WENDE YAN; MEIFANG ZHAO; GEOFFREY M. HENEBRY; JINGYUN FANG;

  • 作者单位

    Key Laboratory for Earth Surface Processes of the Ministry of Education College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    National Engineering Laboratory of Forest Ecology and Applied Technology for Southern China College of Biological Science and Technology Central South University of Forest and Technology Changsha 410004 China;

    Key Laboratory for Earth Surface Processes of the Ministry of Education College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    Key Laboratory of Urban Climate and Ecodynamics Zhuhai Joint Innovative Center for Climate-Environment-Ecosystem Beijing Normal University Zhuhai 519087 China;

    Key Laboratory for Earth Surface Processes of the Ministry of Education College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    National Engineering Laboratory of Forest Ecology and Applied Technology for Southern China College of Biological Science and Technology Central South University of Forest and Technology Changsha 410004 China;

    National Engineering Laboratory of Forest Ecology and Applied Technology for Southern China College of Biological Science and Technology Central South University of Forest and Technology Changsha 410004 China;

    Geospatial Sciences Center of Excellence (GSCE) South Dakota State University Brookings South Dakota 57007 USA;

    Key Laboratory for Earth Surface Processes of the Ministry of Education College of Urban and Environmental Sciences Peking University Beijing 100871 China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境生物学;
  • 关键词

    evolution of cities; horizontal scaling; power scaling; scaling laws; temporal scaling; urban attributes; urban ecosystems; urban sustainability;

    机译：城市的演变;水平缩放;电力缩放;缩放法律;时间缩放;城市属性;城市生态系统;城市可持续性;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号