Effect of green roof on ambient CO2 concentration

被引：156

作者：

Li, Jian-feng ^{[2
]}

Wai, Onyx W. H. ^{[1
]}

Li, Y. S. ^{[1
]}

Zhan, Jie-min ^{[2
]}

Ho, Y. Alexander ^{[3
]}

Li, James ^{[4
]}

Lam, Eddie ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China

[2] Sun Yat Sen Univ, Dept Appl Mech & Engn, Guangzhou 510275, Guangdong, Peoples R China

[3] World Trade Ctr, Hong Kong Housing Soc, Hong Kong, Hong Kong, Peoples R China

[4] Ryerson Univ, Dept Civil Engn, Toronto, ON, Canada

来源：

BUILDING AND ENVIRONMENT | 2010年 / 45卷 / 12期

关键词：

Green roof; Air quality; CO2 absorption velocity; Numerical simulation; Field measurement; Chamber experiment; AIR-POLLUTION REMOVAL; PERFORMANCE; TREES; CROWN;

D O I：

10.1016/j.buildenv.2010.05.025

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Plants can improve air quality by removing pollutants. The air purification capability of plants has been receiving increasing attention because of the rapid deterioration of the environment. However, research on evaluating quantitatively the effect of plants on the environmental pollutant concentrations is still scarce. This paper studies the effect of a green roof on the ambient CO2 concentration as an example to assess the benefit of urban greening. The study comprises three parts: (1) Field measurement of the difference of CO2 concentration at a location in the middle of the plants in a small plot of green roof and one in the surrounding area, (2) Experiments to measure the plant's CO2 absorption velocity and emission rate using a sealed glass chamber; and (3) Computer simulation of the CO2 concentration distribution around a green roof using the measured CO2 absorption velocity and emission rate to quantify the effects of the green roof on the ambient CO2 concentration. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2644 / 2651

页数：8

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