林场不同树种选育对PM_(2.5)大气颗粒物的调控研究  

Research on Regulation of PM_(2.5)by Breeding Different Tree Species in Forest Farms

作　　者：华建春 Hua Jianchun(Saihanba Mechanical Forest Farm in Hebei Province,Chengde 068450,China)

机构地区：[1]河北省塞罕坝机械林场,河北承德068450

出　　处：《环境科学与管理》2024年第6期72-77,共6页Environmental Science and Management

摘　　要：为了降低PM_(2.5)大气颗粒物含量,研究林场不同树种选育对PM_(2.5)大气颗粒物的调控效果。文章采集某区域6种园林植物叶表面空气微粒、叶中元素的组成、含量以及再悬浮速率,并对植物叶片滞尘能力测定方法进行优化,构建空气质量浓度与气象要素关系调控模型。通过检测不同样本叶片蜡质层对颗粒物的截留能力、滞尘粒度分布曲线的变化趋势、以及叶片滞留尘埃的平均颗粒大小,通过拟合计算获取不同树种选育对PM_(2.5)大气颗粒物的调控效果。单叶面积小且叶表粗糙的林场植物可以更好地对PM_(2.5)大气颗粒物进行调控。The regulation effect of different tree species breeding in forest farms on PM_(2.5)was studied.This paper collects the composition,content and resuspension rate of air particles and elements on the leaves of 6 kinds of garden plants in a certain area.The determination method of dust retention capacity of plant leaves was optimized to construct the regulation model of the relationship between air quality concentration and meteorological elements.By detecting the retention ability of leaf wax layer in different samples,the change trend of the distribution curve of dust retention,and the average particle size of leaf residual dust,PM_(2.5)atmosphere of different tree species were obtained/Forest farm plants with small single leaf area and rough leaf surface can better control PM_(2.5)in the air.

关 键 词：林场树种 PM_(2.5)大气颗粒物 空气质量浓度 滞尘粒度分布缺陷 

分 类 号：X511[环境科学与工程—环境工程]