基于小枝的园林木本植物植冠构型对PM2.5的削减机制及能力评价研究—以上海市为例

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中文摘要
PM2.5是城市大气主要污染物之一,园林植物具有削减PM2.5的作用,其中木本植物(乔灌木)是削减PM2.5的主要类群。目前,相关研究集中在PM2.5在叶片上的沉降过程(对PM2.5的冲刷过程研究不足),植物对PM2.5的削减能力也由此估算得出,但忽略了植冠构型对PM2.5削减的影响。小枝是植冠的基本结构单元,可用于重建植冠结构,因此,通过研究PM2.5在小枝上的削减过程就可以揭示植冠构型对PM2.5削减的影响。本研究以上海为例,通过风洞试验和人工降雨试验,模拟在三种典型风速和雨强条件下,PM2.5在园林木本植物(乔灌木)小枝上的沉降和冲刷过程,揭示不同植冠构型的小枝对植物削减PM2.5过程的影响机制。通过Poisson预测模型重建植冠,利用广义线性回归等方法,构建植物削减PM2.5能力的评估模型,筛选出净化PM2.5能力强的木本植物,为优化绿地植物配置和提升绿地的空气净化功能提供依据。
英文摘要
Landscape plants can effectively reduce PM2.5, one of major air pollutants in cities. Among all, woody plants (arbores and shrubs) are the major communities reducing PM2.5. Currently, related studies have been focusing on deposition processes on leaves, while those on washoff process of PM2.5 are lacking. The capacity of plants reducing PM2.5 is estimated from this. However, the effect of canopy morphological structures reducing PM2.5 is neglected. As basic structural units of plants canopy, branchlets can be used to reconstruct the structure of plants canopy. Thus, it can be revealed how canopy morphological structures affect PM2.5 reduction through studying the reduction process of PM2.5 on branchlets. Taken Shanghai as a case study, this study stimulates the process of PM2.5 deposition and washoff on landscape woody plants (arbores and shrubs) branchlets under three typical types of wind speed and rainfall intensities through wind tunnel and artificial rainfall experiments. It will reveal the influence mechanism of branchlets with different morphological structures on reducing PM2.5. Based on this, canopies can be rebuilt with Poisson Forecasting Model, and an evaluation model of the capacity of plants reducing PM2.5 can be constructed based on Generalized Linear Regression, providing the basis for screening out woody plants with a high capacity of reducing PM2.5, optimizing landscape plants design and improving air-purification levels of city green space.
期刊论文列表
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专利列表
DOI:--
发表时间:2020
期刊:风景园林
影响因子:--
作者:车生泉;谢长坤
通讯作者:谢长坤
DOI:10.3390/atmos12111428
发表时间:2021-10
期刊:Atmosphere
影响因子:2.9
作者:Jing Wang;C. Xie;Anze Liang;Ruiyuan Jiang;Zihao Man;Hao Wu;S. Che
通讯作者:Jing Wang;C. Xie;Anze Liang;Ruiyuan Jiang;Zihao Man;Hao Wu;S. Che
DOI:10.3390/f13122062
发表时间:2022-12
期刊:Forests
影响因子:2.9
作者:Anze Liang;C. Xie;Jing Wang;Sheng-guo Che
通讯作者:Anze Liang;C. Xie;Jing Wang;Sheng-guo Che
DOI:10.13348/j.cnki.sjlyyj.2021.0040.y
发表时间:2021
期刊:世界林业研究
影响因子:--
作者:谢长坤;郭健康;梁安泽;汪静;姜睿原;车生泉
通讯作者:车生泉
DOI:10.1016/j.ufug.2022.127556
发表时间:2022-03
期刊:Urban Forestry & Urban Greening
影响因子:--
作者:C. Xie;Jiankang Guo;Lubing Yan;Ruiyuan Jiang;Anze Liang;S. Che
通讯作者:C. Xie;Jiankang Guo;Lubing Yan;Ruiyuan Jiang;Anze Liang;S. Che
城市河岸带景观对水陆界面脱氮与N2O排放的协同影响机制及设计对策研究
- 批准号:--
- 项目类别:--
- 资助金额:55万元
- 批准年份:2022
- 负责人:车生泉
- 依托单位:
上海城市绿地植物群落降雨截留机理和调节机制研究
- 批准号:31670697
- 项目类别:面上项目
- 资助金额:25.0万元
- 批准年份:2016
- 负责人:车生泉
- 依托单位:
面向地表热环境改善的城市绿地空间结构优化模式研究——以上海市为例
- 批准号:31470702
- 项目类别:面上项目
- 资助金额:80.0万元
- 批准年份:2014
- 负责人:车生泉
- 依托单位:
国内基金
海外基金
