植物叶片滞尘机制及影响因子研究综述  

Overview of Dust-Retention Mechanism and Influencing Factors of Plant Leaves

作　　者：宋英石[1] 高健[1] 沈茜 王效科[2] 孙旭 

机构地区：[1]中国环境科学研究院,北京 [2]中国科学院生态环境研究中心,城市与区域生态国家重点实验室,北京

出　　处：《植物学研究》2019年第3期256-261,共6页Botanical Research

基　　金：国家重点研发计划(2016YFF0103005)。

摘　　要：植物是城市生态环境的重要构成部分,在城市中具有多种生态服务功能,植物在吸附、固定和转移空气颗粒物方面发挥着巨大作用。本文从植物叶片表面颗粒物的分类,植物叶片的滞尘机理以及影响植物滞尘的环境因子三个方面进行阐述。根据植物叶表吸附的颗粒物存在的部位可分为树脂内颗粒物和叶表颗粒物,叶表颗粒物又分为叶表固定尘和叶表流动尘。空气中的颗粒物降落到叶片表面一般会通过以下四种方式,沉降、扩散、撞击和截留。植物的冠型结构和叶片表面的特性对植物滞尘有重要影响,另外环境颗粒物浓度也会决定植物滞尘量。最后总结了当前研究的现状和不足之处,对研究植物滞尘的进一步研究具有重要的参考意义。Plants are an important part of the urban ecological environment.They have a variety of ecological services in the city.Plants play an important role in adsorbing,fixing and transferring air particulate matter.In this paper,the classification of particulate matter on the surface of plant leaves,the mechanism of dust retention of plant leaves and the environmental factors affecting dust retention of plants are discussed.According to the location of particulate matter adsorbed on plant leaf surface,it can be divided into particulate matter in resin and particulate matter on leaf surface,and particulate matter can also be divided into fixed dust on leaf surface and flowing dust on leaf surface.Particulate matter in the air falls to the blade surface through the following four ways:deposition,diffusion,impact and interception.The characteristics of plant canopy structure and leaf surface have an important impact on plant dust retention.In addition,the concentration of ambient particulate matter also determines the amount of plant dust retention.Finally,the current research status and shortcomings are summarized,which has important reference significance for further research on plant dust retention.

关 键 词：植物 滞尘 机制 影响因子 

分 类 号：G6[文化科学—教育学]