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首页> 外文期刊>Berichte des Meteorologischen Institutes der Universitat Freiburg >The use of street trees for heat mitigation in hot and arid regions Case study: Beer Sheva, Israel
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The use of street trees for heat mitigation in hot and arid regions Case study: Beer Sheva, Israel

机译：在炎热和干旱地区使用街头树木缓解热量的案例研究：以色列比尔谢瓦

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摘要

This study analyzes the impact of shade trees on microclimate in urban streets of Beer-Sheva city. Israel, located in a hot-arid region. The study is part of a collaborative project between Israel and Germany on the contribution of vegetation to urban heat island mitigation. Two NWSE oriented parallel streets were chosen: a pedestrian mall with vegetation and mature Jaca-randa trees predominating, and a bare street with no trees. Both streets have the same width of 15 m and similar heights of surrounding buildings (1 to 2 stories). In situ measurements were made in 2009 during two periods: the beginning of summer (June) and the end of summer (September).Results show significant differences between the two time periods as indicated in the tree impaet on air and surface temperatures and in tree transpiration rate.These differences were larger for exposed surfaces than for those in tree shade indicating that the hotter the area's microclimate the stronger the tree's potenlial mitigating effect.
机译：本研究分析了遮荫树对比尔谢瓦市城市街道小气候的影响。以色列，位于干旱地区。这项研究是以色列和德国关于植被对缓解城市热岛的贡献的合作项目的一部分。选择了两条面向NWSE的平行街道：一条以植被和成熟的Jaca-randa树木为主的步行购物中心，以及一条没有树木的光秃秃的街道。两条街道的宽度相同，均为15 m，周围建筑物的高度相似（1至2层）。 2009年在两个时期内进行了实地测量：夏季开始（六月）和夏季结束（九月）。结果显示两个时间段之间存在显着差异，如树木对空气，地表温度和树木的影响裸露表面的这些差异大于树荫下的差异，表明该地区的微气候越热，树木的潜在缓解效果越强。

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