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Mapping the link between outdoor water footprint and social vulnerability in Metro Phoenix, AZ (USA)
Landscape and Urban Planning ( IF 7.9 ) Pub Date : 2022-06-10 , DOI: 10.1016/j.landurbplan.2022.104498
Jacob Napieralski , Catherine Sulich , Audrey Taylor , Paul Draus

Outdoor surface water inequities are the disproportionate distribution of outdoor water for the management of blue and green space, including residential swimming pools and irrigated gardens, and contribute to thermal inequities that are particularly pervasive in arid climates. The purpose of this study was to map and assess social vulnerability to green space and blue space within two transects in metro Phoenix, Arizona, a socioeconomically diverse city that is water vulnerable and experiences intense urban heating. The objectives were to (1) map distribution of residential swimming pools; (2) link blueness and greenness of communities to social vulnerability; (3) evaluate the blueness and greenness of formerly redlined neighborhoods by the Home Owners’ Loan Corporation (HOLC); and (4) assess the severity of the urban heat island effect in redlined neighborhoods. The results show a strong relationship between social vulnerability and pool count and area, and overall greenness and blueness. Redlined neighborhoods have fewer pools, surface water features, and vegetation and, as a result, exhibit a greater severity of urban heat island effect than those graded as “safe”. In many cities like Phoenix, the legacy of segregative housing policies and the widening gap in socioeconomic vulnerability has amplified the disparate distribution and access to green and blue urbanscapes.



中文翻译:

绘制亚利桑那州凤凰城的户外水足迹与社会脆弱性之间的联系(美国)

室外地表水不公平是指用于管理蓝色和绿色空间(包括住宅游泳池和灌溉花园)的室外水的不成比例分配,并导致在干旱气候中特别普遍的热不公平。本研究的目的是绘制和评估亚利桑那州凤凰城地铁两个样带内绿色空间和蓝色空间的社会脆弱性,这是一个社会经济多元化的城市,水资源脆弱,城市供暖严重。目标是 (1) 绘制住宅游泳池的分布图;(2) 将社区的蓝色和绿色与社会脆弱性联系起来;(3) 由业主贷款公司 (HOLC) 评估以前红线社区的蓝度和绿度;(4) 评估红线街区城市热岛效应的严重程度。结果表明,社会脆弱性与游泳池数量和面积以及整体绿色和蓝色之间存在密切关系。红线社区的水池、地表水特征和植被较少,因此,城市热岛效应的严重程度高于被评为“安全”的社区。在像凤凰城这样的许多城市,隔离住房政策的遗留问题和社会经济脆弱性差距的扩大扩大了不同的分布和获得绿色和蓝色城市景观的机会。城市热岛效应的严重程度高于“安全”等级。在凤凰城这样的许多城市,隔离住房政策的遗留问题和社会经济脆弱性差距的扩大扩大了绿色和蓝色城市景观的分布差异和获取途径。城市热岛效应的严重程度高于“安全”等级。在像凤凰城这样的许多城市,隔离住房政策的遗留问题和社会经济脆弱性差距的扩大扩大了不同的分布和获得绿色和蓝色城市景观的机会。

更新日期:2022-06-11
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