当前位置: X-MOL 学术Glob. Environ. Chang. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Towards urban water sustainability: Analyzing management transitions in Miami, Las Vegas, and Los Angeles
Global Environmental Change ( IF 8.9 ) Pub Date : 2019-09-04 , DOI: 10.1016/j.gloenvcha.2019.101967
Margaret Garcia , Elizabeth Koebele , Aaron Deslatte , Kathleen Ernst , Kimberly F. Manago , Galen Treuer

As climate change challenges the sustainability of existing water supplies, many cities must transition toward more sustainable water management practices to meet demand. However, scholarly knowledge of the factors that drive such transitions is lacking, in part due to the dearth of comparative analyses in the existing transitions literature. This study seeks to identify common factors associated with transitions toward sustainability in urban water systems by comparing transitions in three cases: Miami, Las Vegas, and Los Angeles. For each case, we develop a data-driven narrative that integrates case-specific contextual data with standardized, longitudinal metrics of exposures theorized to drive transition. We then compare transitions across cases, focusing on periods of accelerated change (PoACs), to decouple generic factors associated with transition from those unique to individual case contexts. From this, we develop four propositions about transitions toward sustainable urban water management. We find that concurrent exposure to water stress and heightened public attention increases the probability of a PoAC (1), while other factors commonly expected to drive transition (e.g. financial stress) are unrelated (2). Moreover, the timing of exposure alignment (3) and the relationship between exposures and transition (4) may vary according to elements of the system’s unique context, including the institutional and infrastructure design and hydro-climatic setting. These propositions, as well as the methodology used to derive them, provide a new model for future research on how cities respond to climate-driven water challenges.



中文翻译:

迈向城市水的可持续发展:分析迈阿密,拉斯维加斯和洛杉矶的管理过渡

随着气候变化挑战现有供水的可持续性,许多城市必须向更可持续的水资源管理实践过渡,以满足需求。但是,缺乏关于驱动这种转变的因素的学术知识,部分原因是现有的转变文献中缺乏比较分析。本研究旨在通过比较迈阿密,拉斯维加斯和洛杉矶三种情况下的转变来确定与城市水系统向可持续发展转变相关的共同因素。对于每种情况,我们都开发了一种数据驱动的叙述,该叙述将特定于案例的上下文数据与标准化的纵向曝光度量(理论上可以驱动过渡)相集成。然后,我们比较案例之间的过渡情况,着眼于加速变化的时期(PoAC),将与过渡相关的一般因素从独特的案例环境中分离出来。据此,我们提出了关于向可持续城市水管理过渡的四个命题。我们发现,同时面临缺水压力和公众关注度的提高会增加PoAC的可能性(1),而通常预期会推动转型的其他因素(例如财务压力)则无关紧要(2)。此外,暴露调整的时间(3)以及暴露与过渡之间的关系(4)可能会根据系统独特环境的要素而有所不同,包括机构和基础设施设计以及水文气候环境。这些主张以及用于推导它们的方法,为未来研究城市如何应对气候驱动的水挑战提供了新的模型。

更新日期:2019-09-04
down
wechat
bug