夏冬季节绿化对居住小区温湿环境影响研究——以临安左邻右里小区为例

Study on the influence of greening on the outdoor temperature and humidity environment of residential district in summer & winter——A case study of Zuolinyouli residence in Lin'an

为研究居住小区在冬夏季节以温湿度为主的微气候特征及优化方式,对浙江省临安市一小区进行温湿环境实地测量。测量结果表明:绿化有降温增湿的作用,夏季尤为显著。而热环境舒适度的改善与绿化的降温增湿作用并不一致,过多的绿化会因为在夏季过多增加湿度,在冬季阻碍太阳辐射而导致舒适度的下降。过少的绿化则在夏季不能遮挡遮过强的太阳辐射,不利于舒适度的改善。由此可见,在亚热带区域中,夏季乔木的遮阴能力,冬季绿化空间透射太阳的能力影响着居住区环境舒适度。所以上层绿化树种的选择与配置对居住区温湿度环境与舒适度的改善具有重要的作用。

In order to study the micro climate characteristics and optimization ways of temperature and humidity environment of residential district in winter and summer , the field measurements on the outdoor temperature and humidity environment in a residential district had been carried out in Lin＇an, Zhejiang Province. The measurement results showed that the greening had the effect of cooling and humidification, especially in summer, while the improvement of the thermal environment and the effect of the cooling and humidification of greening was not consistent. Too much greening increased the humidity unduly in summer, while it was hindering the sun radiation and lead to a decline in comfort in winter. Too little greening failed to block strong sun radiation in summer, which was not conducive to the improvement of comfort. According to these results, shading effect of tree in summer and sun permeation of greening space in winter influence the environmental comfort of residential district in subtropical region. Therefore, the selection and configuration of trees for the upper greening play a key role improving the temperature and humidity environment and comfort of residential district.