摘要
以潍坊市9种道路绿化树种为研究对象,分析季节、累积时间、道路交通环境对植物叶片滞留颗粒物能力的影响,建立树种综合滞尘效应量化模型,探讨绿化树种的滞尘规律。结果表明:9种道路绿化树种的滞尘能力差异显著,叶片滞尘量随累积时间增加,20 d后增量减慢趋向平缓,拟合了植物叶片单位叶面积滞尘量与累积滞尘时间的二次曲线方程函数;树种滞尘量具有显著的季节效应,变化规律为春季>秋季>夏季,与潍坊市大气颗粒物浓度的季节变化基本一致;树种滞留颗粒物的能力与道路交通环境基本一致,表现为宝通街>潍安路>北海路>樱前街。采用综合指数法分析树种综合滞尘能力,丁香、悬铃木、日本晚樱滞尘能力最强,五角枫滞尘能力最弱,筛选丁香、悬铃木、日本晚樱作为潍坊市道路绿化的骨干树种推广应用。
We analyzed the effects of season accumulation time and road traffic environment on the ability of plant leaves to retain particulate matter using nine road tree species as research objects in Weifang City Shandong Province China.In addition we established a quantitative model of comprehensive dust retention effects and discussed the dust retention regularities of main road greening tree species.The results showed that the dust retention capacities of the nine tree species were significantly different.The dust holding capacity of the leaves increased with accumulation time and the increments tended to plateau after 20 days.A quadratic equation was fitted for dust holding capacity per unit leaf area and dust retention time.The dust holding capacities of different tree species were the highest in spring followed by autumn and summer which follows roughly the same seasonal pattern as atmospheric particulate concentration in Weifang City.Dust holding capacity varied significantly between different seasons within the same tree species.The ability of tree species to retain particulate matter was consistent with the road traffic environments which were the most congested in Baotong Street followed in descending order by Wei’an Road Beihai Road and Yingqian Street.A comprehensive index method was used to analyze the dust retention abilities of tree species and its results revealed that Syringa oblata Platanus acerifolia and Prunus serrulata var.lannesiana had the highest dust retention abilities whereas Acer mono had the lowest ability.Therefore Syringa oblata Platanus acerifolia and Prunus serrulata var.lannesiana can be considered to be optimal tree species for road greening in Weifang.
作者
路艳
卞贵建
季洪亮
LU Yan;BIAN Guijian;JI Hongliang(Department of Biological and Agricultural Engineering,Weifang University,Weifang,Shandong 261061,China;College of Landscape Architecture,Sichuan Agricultural University,Chengdu,Sichuan 611130,China;College of Highway and Architecture,Shandong Transport Vocational College,Weifang,Shandong 261206,China)
出处
《森林与环境学报》
CSCD
北大核心
2020年第3期269-275,共7页
Journal of Forest and Environment
基金
山东省自然科学基金项目(ZR2014CL006)
山东省农业重大应用技术创新项目子课题(SD2019ZZ004)。
关键词
滞尘量
季节效应
道路绿化
量化模型
叶片特征
dust holding capacity
seasonal effects
road greening
quantitative model
leaf characteristics
