Relationship between PM2.5 and environmental factors in landscape shelterbelt
In this paper,with the typical landscape protection forest along the Yangtze River as the research object,four pure forest types of landscape protection forest including Ulmus parvifolia,Sapium sebiferum,Taxidium distichum and Carya illinoensis were selected to monitor the season change of PM2.5,wind speed,wind direction,light intensity,air hu-midity,air temperature,air pressure,soil temperature and soil humidity in 2023.We found that the variation range of PM2.5 concentration in S.sebiferum shelterbelts was large,which was significantly lower in summer than in winter while the seasonal variation range of PM2.5 concentration in the other three shelterbelts was not large.The correlation analysis found that PM2.5 was correlated with many environmental factors,especially in S.sebiferum shelterbelt.In order to explore the impact of various environmental factors on PM2.5,the random forest model was applied in this study.The result showed that air humidity was the main environmental factor affecting PM2.5 concentration in typical landscape shelterbelts along the Yangtze River.The results could provide a theoretical basis for constructing a scientific and reasonable shelterbelt system in the future.
ShelterbeltPM2.5Environmental factorRandom forest modelThe Yangtze River
NETL
NSTL
万方数据
