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首页> 外文期刊>Journal of the American Water Resources Association >Characterizing and Contextualizing the Water Challenges of Megacities
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Characterizing and Contextualizing the Water Challenges of Megacities

机译：表征和背景化特大城市的水挑战

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We characterize and compare water challenges confronting the 28 megacities of the world in 2014. Relying on existing literature and diverse primary data sources, we present a unique portrait at a global scale of the water implications of the rapid growth in megacities. We find that differentiating and analyzing the complexity of megacities' water problems based on geographic contexts, historical development trajectories, urban population growth rates, and forms of urban expansion helps explain the nature of the various water management problems they confront. Two governance features also shed light on megacity water challenges: fragmentation resulting from forms of megacity urban expansion; and, urban dualism resulting from contradictions between historical and cultural legacies and the rise of global engineering and technological norms for water management. The increasing vulnerability of megacities to climate change poses risks as well as opportunities for a more collective response to address this global phenomenon. Our analysis raises important questions and offers guidance about the future trajectories of many more large cities around the world that are on their way to becoming megacities.
机译：我们对2014年全球28个特大城市面临的水资源挑战进行了表征和比较。借助现有文献和多种原始数据来源，我们在全球范围内对特大城市的快速增长所带来的水影响进行了独特的描述。我们发现，根据地理环境，历史发展轨迹，城市人口增长率和城市扩张形式来区分和分析特大城市的水问题的复杂性，有助于解释它们所面临的各种水资源管理问题的性质。治理的两个特征也揭示了特大城市的用水挑战：特大城市城市扩张形式造成的支离破碎；历史和文化遗产之间的矛盾以及全球水资源管理工程和技术规范的兴起导致城市二元化。特大城市对气候变化的脆弱性日益增加，带来了风险，也为应对这一全球现象提供了更加集体的对策的机会。我们的分析提出了重要的问题，并为世界上许多正在成为特大城市的大城市的未来发展轨迹提供了指导。

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