基于PM2.5测定的杭州城市绿地生态功能研究

Study on the ecological function of the urban green space based on the PM2.5 measurement in Hangzhou

以杭州西湖景区6处典型景点为研究对象,开展了空气PM2.5的测定分析,并以杭州市区万向公园作为对照,进行了比较研究,研究结果表明,PM2.5浓度的变化规律是:夏、春季低,秋、冬季高,密林<疏林<滨水,景区明显低于城区,说明良好的绿化覆盖对于降低空气PM2.5具有显著作用。

In this study,six scenic spots were selected for measurement and analysis of air PM2. 5 taking Wanxiang Park in downtown as the comparison. The results showed that the concentration of PM2. 5 were lower in summer and spring,whereas higher in autumn and winter,thick forest〈 open forest〈 waterfront. PM2. 5 concentration was significantly lower in scenic spots than those in the urban area,which represented that greening coverage has significant effect on reducing air PM2. 5.