%0 Journal Article %A ZHANG Zhen-ming %A LIU Meng-meng %A RUANSHI Qing-cao %A LIU Xu-hui %A YU Xin-xiao** %T Pollution characteristics of atmospheric particulates in forest belts and their relationship with meteorological conditions. %D 2014 %R %J Chinese Journal of Ecology %P 1715-1721 %V 33 %N 7 %X
In order to understand the blocking effects of forest belts on particulates, the concentrations of particulate matters (PM10 and PM2.5) in different forest belts near the ecological corridor in southern Beijing Olympic Forest Park adjacent to the southern side of North Fifth Ring Road were observed in May 2013, and major meteorological data such as temperature and relative humidity were collected simultaneously. Results showed that the change pattern of PM10 was consistent with that of PM2.5, being highest in the morning (7:00 am) and lowest at about 17:00 pm. The forest belts could reduce the concentration of PM10, but the blocking effect was complicated for the PM2.5. The PM2.5 concentrations decreased in the elm forest belt and mixed forest belt, but the situation was opposite for poplar forest belt. Particle concentrations in the forest changed with the meteorological factors. PM10 and PM2.5 concentrations were negatively correlated with temperature. Increased temperature intensified the atmospheric vertical convection, being conducive to the particle diffusion and thus decreasing the particle concentration. Concentrations of PM10 and PM2.5 had positive relationships with the relative humidity.
 
%U http://www.cje.net.cn/EN/abstract/article_21532.shtml