The Relationship between Plant Community Structure and Their Ability to Absorb and Subtract PM_(2.5)  

作　　者：Yuyuan HUANG Haiyang WEN Huina YANG Chengxi JIANG Hong LIANG Song MA Zhijie CHEN Zhiming YANG Lijuan HUANG Xinfan YU Long HE Suni DENG Wanmin ZHOU Shengyuan WU 

机构地区：[1]College of Agriculture and Biology,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China [2]Shenzhen Environmental Monitoring Center Station,Shenzhen 518049,China

出　　处：《Meteorological and Environmental Research》2021年第3期70-76,共7页气象与环境研究（英文版）

基　　金：Supported by the Project of Shenzhen Science and Technology Innovation Committee(JCYJ20150831190958804);the Project of Shenzhen Human Settlements Committee(B41620320).

摘　　要：The research aimed to study absorption and reduction of PM_(2.5)by different plant community structure,and explore which plant community can have better or best comprehensive absorption efficiency,thereby improving and optimizing urban vegetation structure,further promoting improvement of urban air quality,improving people's quality of life,and ensuring a good living environment.In this paper,the method of quadrat survey commonly used in field survey was adopted to record the height,coverage,DBH and other indicators of statistical plants,and corresponding comprehensive value was calculated through these indexes.PM_(2.5)was measured at forest edge,4 and 8 m in the forest,with three repetitions.Subtraction amount of PM_(2.5)determined at different layers was analyzed,as well as its relationship with comprehensive value of community structure.The results showed that PM_(2.5)amount decreased significantly at forest edge,4 and 8 m in the forest,and better community structure had a positive effect on PM_(2.5)absorption.The higher the comprehensive indexes of community structure such as plant height,DBH(arbor),density and coverage,the better the ability of absorbing and reducing PM_(2.5).Therefore,it must pay attention to the diversity of plant species per unit area,to build a good plant community structure,which could better improve structure of local ecosystem,and play a good role in absorbing and reducing PM_(2.5)pollutants in the atmosphere.

关 键 词：Community structure PM_(2.5) Subtraction amount 

分 类 号：X513[环境科学与工程—环境工程] X173