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园林植物吸附细颗粒物(PM2.5)效应研究进展

陈小平1,焦奕雯1,裴婷婷1,2,周志翔1**   

  1. (1华中农业大学园艺林学学院/园艺植物生物学教育部重点实验室, 武汉 430070; 2山西农业大学信息学院, 山西太谷 030800)
  • 出版日期:2014-09-10 发布日期:2014-09-10

The effect of adsorbing fine particulate matter (PM2.5) by garden plants: A review.

CHEN Xiao-ping1, JIAO Yi-wen1, PEI Ting-ting1,2, ZHOU Zhi-xiang1**   

  1. (1 College of Horticultural & Forestry Science/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; 2 College of Information, Shanxi Agricultural University, Taigu 030800, Shanxi, China)
  • Online:2014-09-10 Published:2014-09-10

摘要:

园林植物具有显著消减空气颗粒物(PM)污染的作用,能有效地改善城市环境质量。但迄今为止,国内外的大量研究都集中在园林植物对总悬浮颗粒物(TSP)或者粗颗粒物(PM10)的阻滞效应上,植物吸附空气细颗粒物(PM2.5)的研究尚处于探索阶段。本文概述了植物叶片吸附空气PM的方式,叶片PM2.5化学物质的转移过程以及植物吸附PM2.5的周期性,探讨了植物叶片对空气不同粒径颗粒物的吸附特征,园林植物吸附空气PM2.5的能力与机制,并从植物吸附PM2.5的测定方法、园林植物吸附PM2.5能力的测定和评价、高吸附PM2.5能力的园林植物筛选、园林植物吸附PM2.5的机制与影响因素等方面提出了园林植物吸附PM2.5的研究重点与趋势,以期为深化植物吸附PM2.5的机制研究及高吸附PM2.5能力的园林植物筛选提供依据。

 

关键词: 果实品质, 吸收, 15N-尿素, 损失, 供氮水平, 苹果, 利用

Abstract:

Garden plants have a significant ability to remove air particulate matters (PM) and can effectively improve the urban environmental quality. The study of dustretention effect of garden plants in China and other countries have made considerable achievements so far. However, most researches on the dustretention effect of garden plants had been primarily concentrated on the total suspended particulates (TSP) and coarse particles (PM10), while few studies have focused on the effects of plants’ adsorbing air fine particulate matter (PM2.5). In order to provide references for further study in the PM2.5 adsorption capacity and adsorption mechanism of garden plants, we have concluded that the effects of garden plants’ adsorption of PM2.5 according to different perspectives, i.e., the way of plant leaves absorbing air particles, the transfer process of PM2.5 upon leaves and the PM2.5 adsorption periodicity of plant leaves, the characteristics of adsorption of plant leaves to different diameter particles, the garden plants’ ability and mechanism of adsorbing PM2.5. Additionally, we propose that the key points and trends about garden plants absorbing PM2.5 based on three aspects: the quantitative analysis method of PM2.5 removal efficiency of garden plants, the measurement and evaluation of garden plants’ adsorption abilities to PM2.5, selection of plants with a higher ability to adsorb PM2.5, the mechanism and influencing factors of garden plants’ adsorption to PM2.5. The present paper provides a basis for deepening the research on the mechanism of plant adsorbing PM2.5 and selection of garden plants with a high ability of adsorption to PM2.5.

 

Key words: fruit quality, apple, utilization, absorption, 15N-urea, loss, nitrogen level