Quantification of fine dust deposition on different plant species in a vertical greening system
Quantification of fine dust deposition on different plant species in a vertical greening system
复制标题
DOI：
10.1016/j.ecoleng.2016.12.032
复制
发表时间：
2017-03-01
影响因子：
3.8
通讯作者：
Roccotiello, Enrica
中科院分区：
文献类型：
--
作者：
Perini, Katia;Ottele, Marc;Roccotiello, Enrica
城市植被已被证明可以改善空气质量。在人口密集的城市中，绿色围护结构可以提供广阔的植被表面。本研究考察了四种用于垂直绿化系统的植物的性能，比较了在相同条件下（高度/位置，污染暴露，天气），叶片收集细颗粒物和超细颗粒物（PM10, PM2.5）的能力。20片叶片上表皮的ESEM显微图（n = 144）显示了不同植物种类的表现，其中：Trachelospertnum jasminoides > Hedera helix > Cistus 'Jessamy Beauty' > Phlomis fruticosa。在100倍、250倍、500倍、2500倍的放大倍率下，可以计算大范围的颗粒大小，即从0.1到20 μ m。研究表明，所调查的一些变量，即植物物种的形状和表面（叶表皮上的厚角质层蜡），会影响颗粒的沉积量；而其他的，如树叶的季节和年龄，则没有。该研究表明，在绿色基础设施中选择特定的植物对于利用它们的收集能力来提高垂直绿化系统的性能非常重要。(C) 2017 Elsevier B.V.版权所有
Urban vegetation has been shown to improve air quality. Green envelopes can provide wide vegetated surfaces in dense cities. This research investigates the performances of four selected plant species used for vertical greening systems, comparing the fine and ultrafine dusts (PM10, PM2.5) collecting capacity by leaves, under the same conditions (height/location, pollution exposition, weather). The ESEM micrographs (n = 144) taken on the upper leaf epidermis of 20 leaves show different plant species performances, with Trachelospertnum jasminoides > Hedera helix > Cistus 'Jessamy Beauty' > Phlomis fruticosa. The 100x, 250x, 500x, 2500x magnifications allow counting a wide range of particle sizes, i.e., from 0.1 to 20 mu m. The study demonstrates that some variable investigated, i.e., plant species' shape and surface (thick cuticular waxes on leaf epidermis), influence the amount of particles deposed; while others, i.e., season and age of leaves, do not. This study demonstrates that selecting specific plants in green infrastructure is important to exploit their collecting capacity to increase vertical greening systems performances. (C) 2017 Elsevier B.V. All rights reserved.