安徽农业科学2016，Vol.44Issue(14)：202-205,249,5.
吉林市6种街道绿化树种叶片滞尘特性研究
Blade Detaining Dust Feature of Six Kind s of Street Greening Tree Species in Jilin City
魏进华 1张倩2
作者信息
- 1. 东北林业大学园林学院，黑龙江哈尔滨150040
- 2. 北华大学林学院，吉林吉林132013
- 折叠
摘要
Abstract
Objective] To research the blade detaining dust feature, and to provide references for the selection of detaining dust green tree spe-cies.[Method] water immersion method and image method were used to detect the dust detention quantity in unit leaf area , and leaf adsorbed particle size composition of six kinds of common street greening tree species in Jilin City.The relationship between microstructure and leaf dust were analyzed.[Result] ① Small diameter particles could stably fix dusts on blade surface for a long time; the percentages of six kinds of tree leaves adsorbed PM10 ratio all reached more than 97.76%; blade fixation of PM2.5 cumulative quantity proportion reached 65.33% and above.②When comparing the dust detention quantity of each species, big diameter particles played a major role.The volume ratios of six kinds of tree leaves adsorbed PM10 were between47.87% and 78.22% , among which the biggest was Sp iraea × bumalda cv.Cold flame and the smallest was Prunus arm eniaca L.Volume ratios of some leaves adsorbed PM2.5 were between 4.41% and 14.66%, among which the largest proportion was the Syringa oblata Lindl, and the smallest was the Prunus armeniaca L.③ There were significant differences in leaf retention particles, PM2.5 and PM 10 in six kinds of street greening tree species .Specificity existed in the detaining dust of tree species, which was shown in two as-pects of dust amount and particle size composition .④Blade microstructure had great influence on the retention of smaller particles (particle di-ameter <20 microns).Usually, greater blade folds and concave and convex content led to larger amount of particulates .[Conclusion]Small diameter particles can stably fix dusts on blade surface for a long time .Fixed amount and particle size composition are related to the surface mi-cro-structure of leaves.关键词
园林树木/滞尘/特异性/粒径组成Key words
Garden trees/Detaining dust/Specificity/Particle size composition分类
农业科技引用本文复制引用
魏进华,张倩..吉林市6种街道绿化树种叶片滞尘特性研究[J].安徽农业科学,2016,44(14):202-205,249,5.
