Taking the Phyllostachys heterocycla forest in Qishan National Forest Park of Fuzhou for example,this study observed the diurnal variation of atmospheric aerosol particles in the forest in the growing season.The resul...Taking the Phyllostachys heterocycla forest in Qishan National Forest Park of Fuzhou for example,this study observed the diurnal variation of atmospheric aerosol particles in the forest in the growing season.The results showed that:① The diurnal variation curves of the particle concentration of the forest and the forest edge had “two peaks and two troughs”,but the peaks and troughs of the forest edge were advanced or delayed.The concentrations of the particles in the forest and at the forest edge had two peaks at 11:00–13:00 and 17:00–19:00 and two troughs at 7:00–9:00 and 15:00–17:00.② For the forest and the forest edge,the diurnal variation trends of the particles of different particle sizes were generally similar,except that the peaks and troughs of fine particles were slightly earlier or lagging than that of coarse particles.③ The concentrations of the particles were positively correlated with temperature,humidity and light,and negatively correlated with wind speed,and the concentrations of the particles at the forest edge were significantly negatively correlated with wind speed.展开更多
This study analyzed the microclimate factors and human comfort index inside and outside the Phyl ostachys heterocycla forest of Qishan Natiional Forest Park in summer,and compared them with those of the city square.Th...This study analyzed the microclimate factors and human comfort index inside and outside the Phyl ostachys heterocycla forest of Qishan Natiional Forest Park in summer,and compared them with those of the city square.The results showed that:(1)In terms of the average daily temperature,the inner and outer forests and the city square ranked as follows:city square>outer forest>inner forest.The temperature of the inner forest was 5.41–10.31°C lower than that of the city square,and the temperature of the outer forest was 4.41–9.51°C lower than that of the city square.(2)In terms of the average daily relative humidity,the inner and outer forests and the city square ranked as follows:city square<outer forest<inner forest.Compared with the city sqaure,the inner forest had an increase of 8.21–31.51%in relative humidity,and the outer forest had an increase of 8.11–26.16%in relative humidity.(3)In terms of the average daily wind speed,the inner and outer forests and the city square ranked as follows:city square>outer forest>inner forest.The daily average value of the city square was 42%and 37%higher than that of the inner and outer forests,and the daily average value of the outer forest was 21%higher than that of the inner forest.(4)In terms of the daily average illumination intensity,the inner and outer forests and the square ranked as follows:city square>outer forest>inner forest.The daily average value of the city square was 97.38%and 74.33%higher than that of the inner and outer forests,and the daily average value of the outer forest was 89.78%higher than that of the inner forest.展开更多
基金Sponsored by the Science and Technology Project of Beijing Municipal Administration Center of Parks(ZX2019)Beijing Science and Technology Plan Project(D171100001817001)
文摘Taking the Phyllostachys heterocycla forest in Qishan National Forest Park of Fuzhou for example,this study observed the diurnal variation of atmospheric aerosol particles in the forest in the growing season.The results showed that:① The diurnal variation curves of the particle concentration of the forest and the forest edge had “two peaks and two troughs”,but the peaks and troughs of the forest edge were advanced or delayed.The concentrations of the particles in the forest and at the forest edge had two peaks at 11:00–13:00 and 17:00–19:00 and two troughs at 7:00–9:00 and 15:00–17:00.② For the forest and the forest edge,the diurnal variation trends of the particles of different particle sizes were generally similar,except that the peaks and troughs of fine particles were slightly earlier or lagging than that of coarse particles.③ The concentrations of the particles were positively correlated with temperature,humidity and light,and negatively correlated with wind speed,and the concentrations of the particles at the forest edge were significantly negatively correlated with wind speed.
基金Sponsored by the Science and Technology Project of Beijing Municipal Administration Center of Parks(ZX2019)Beijing Science and Technology Plan Project(D171100001817001)
文摘This study analyzed the microclimate factors and human comfort index inside and outside the Phyl ostachys heterocycla forest of Qishan Natiional Forest Park in summer,and compared them with those of the city square.The results showed that:(1)In terms of the average daily temperature,the inner and outer forests and the city square ranked as follows:city square>outer forest>inner forest.The temperature of the inner forest was 5.41–10.31°C lower than that of the city square,and the temperature of the outer forest was 4.41–9.51°C lower than that of the city square.(2)In terms of the average daily relative humidity,the inner and outer forests and the city square ranked as follows:city square<outer forest<inner forest.Compared with the city sqaure,the inner forest had an increase of 8.21–31.51%in relative humidity,and the outer forest had an increase of 8.11–26.16%in relative humidity.(3)In terms of the average daily wind speed,the inner and outer forests and the city square ranked as follows:city square>outer forest>inner forest.The daily average value of the city square was 42%and 37%higher than that of the inner and outer forests,and the daily average value of the outer forest was 21%higher than that of the inner forest.(4)In terms of the daily average illumination intensity,the inner and outer forests and the square ranked as follows:city square>outer forest>inner forest.The daily average value of the city square was 97.38%and 74.33%higher than that of the inner and outer forests,and the daily average value of the outer forest was 89.78%higher than that of the inner forest.
