This review analyzes literature regarding urban heating and urban heat islands (UHIs) in dryland cities. This topic is of widespread importance in the era of climate change since many global cities are in arid, semiarid, or Mediterranean regions. We first analyze the literature on dryland UHIs, finding major differences with those for temperate cities. We then review research on cooling strategies involving vegetation, built form, and materials. Finally, we consider planning dimensions. Overall, we find that the most sustainable cooling approach for dryland cities is likely to combine low-water tree species with dense, shade-producing built form and high-albedo materials.

中文翻译：

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缓解旱地城市的城市供暖：文献综述

本综述分析了有关旱地城市城市供暖和城市热岛 (UHI) 的文献。这个话题在气候变化时代具有广泛的重要性，因为许多全球城市都位于干旱、半干旱或地中海地区。我们首先分析有关旱地 UHI 的文献，发现与温带城市的主要差异。然后，我们回顾了涉及植被、建筑形式和材料的冷却策略研究。最后，我们考虑规划维度。总体而言，我们发现旱地城市最可持续的降温方法很可能将低水位树种与密集、可产生遮荫的建筑形式和高反照率材料相结合。