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植物吸附大气颗粒物的时空变化规律及其影响因素的研究进展

吕铃钥,李洪远*,杨佳楠   

  1. (南开大学环境科学与工程学院, 天津 300071)
  • 出版日期:2016-02-10 发布日期:2016-02-10

The temporal-spatial variation characteristics and influencing factors of absorbing air particulate matters by plants: A review.

LU Ling-yue, LI Hong-yuan*, YANG Jia-nan   

  1. (College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China)
  • Online:2016-02-10 Published:2016-02-10

摘要: 植物可以吸附大气颗粒物,对降低大气颗粒物污染具有重要作用,能有效改善空气质量,植被对颗粒物的吸附功能研究已成为当前城市生态学和环境科学研究的热点。本文从植物叶片吸附大气颗粒物的方式和途径出发,概述了植物叶片对颗粒物的吸附特征及其时空变化规律。以此为基础,从植物叶表面属性、植物种类及其物理属性、植物群落特征等植物内部因素,颗粒物的粒径组成和污染程度等外界环境因素,大风、降水、温湿度等气象因素这些方面来阐述植物对不同粒径颗粒物吸附能力的影响因素。最后,文章指出今后应在植物吸附大气颗粒物的机制、定量化分析以及更加科学系统的测定方法等方面加强研究,以期为能高效吸附颗粒物的植物种类和植物配置方式的选择提供参考依据。

关键词: 酒精摩尔浓度法, 滴水穿透时间法, 土壤理化性质, 土壤斥水性, 接触角

Abstract:

Plants can absorb and retain air particulate matters. They play an important role in reducing air pollution of particulate matters and improving air quality. Recently, studies on the plant adsorption function for sizefractionated airborne particulate matters have become a hotspot in the fields of urban ecology and environmental science. Beginning with the adsorption pathway and mechanism of the plants, this review elaborates the plant adsorption characteristics, temporal and spatial variation patterns for differentsized particles. We emphasize the analyses of crucial factors affecting particle-retaining capability, such as plant internal factors (surface property of plant leaves, plant species and their physical properties, plant community characteristics), the size and composition of air particulate matters and their pollution levels, and meteorological conditions (the velocity and direction of wind, precipitation, temperature and humidity). It is recognized that researches on adsorption mechanism and quantitative analysis methods should be strengthened in order to select and configure ideal plant species to remove particulate matters.
 

Key words: contact angle, water droplet penetration time (WDPT) method, soil physical and chemical properties, molarity of ethanol drop (MED) method, soil water repellency (SWR)