Street greenery and its physical and psychological impact on thermal comfort
Street greenery and its physical and psychological impact on thermal comfort
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DOI：
10.1016/j.landurbplan.2015.02.009
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发表时间：
2015-06-01
影响因子：
9.1
通讯作者：
van Hove, Bert
中科院分区：
文献类型：
--
作者：
Klemm, Wiebke;Heusinkveld, Bert G.;van Hove, Bert
这项研究的重点是在温和的气候条件下，街道绿化创造热舒适的街景的好处。它报告了从生理和心理角度对街道绿化对室外热舒适性影响的调查。为了这个目的，我们研究了9条街道具有可比的几何配置，但不同数量的街道绿化（行道树，前花园）在荷兰乌得勒支市。进行了移动的微气象测量，包括气温（T-a）、太阳辐射和热辐射，从而能够计算平均辐射温度（T-mrt）。此外，半结构化的采访，行人对他们的瞬间和长期的热舒适感和他们的审美欣赏的绿色街道设计进行了。测量结果表明，街道绿化通过树木遮荫对热舒适性有明显的影响（p = 0.0001）：街道峡谷内10%的树冠覆盖降低了街道平均T-mrt约1 K。相比之下，我们的研究结果并没有显示街道绿化对街道平均T-a的影响。访谈结果表明，瞬时热舒适感往往与街道绿化量有关。然而，结果没有统计学意义。与长期感知的热舒适度相关，受访者几乎没有意识到街道绿化的影响。然而，人们明显（P
This study focuses on the benefits of street greenery for creating thermally comfortable streetscapes in moderate climates. It reports on investigations on the impact of street greenery on outdoor thermal comfort from a physical and psychological perspective. For this purpose, we examined nine streets with comparable geometric configurations, but varying amount of street greenery (street trees, front gardens) in the city of Utrecht, the Netherlands. Mobile micrometeorological measurements including air temperature (T-a), solar and thermal radiation were performed, enabling the calculation of mean radiant temperature (T-mrt). Additionally, semi-structured interviews with pedestrians about their momentary and long-term perceived thermal comfort and their esthetical appreciation of the green street design were conducted. Measurements showed a clear impact (p = 0.0001) of street greenery on thermal comfort through tree shading: 10% tree crown cover within a street canyon lowered street averaged T-mrt about 1 K. In contrast, our results did not show an influence of street greenery on street averaged T-a. Interview results indicated that momentary perceived thermal comfort tended to be related to the amount of street greenery. However, the results were not statistically significant. Related to long-term perceived thermal comfort respondents were hardly consciously aware of influences by street greenery. Yet, people significantly (p