DOI: 10.1016/j.atmosenv.2014.09.031
Scopus记录号: 2-s2.0-84907930460
论文题名: On the relation between tree crown morphology and particulate matter deposition on urban tree leaves: A ground-based LiDAR approach
作者: Hofman J ; , Bartholomeus H ; , Calders K ; , Van Wittenberghe S ; , Wuyts K ; , Samson R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 130
结束页码: 139
语种: 英语
英文关键词: Leaf-deposition
; Light detection and ranging (LiDAR)
; Particulate matter
; Tree morphology
; Urban green
Scopus关键词: Ground-based lidars
; Leaf-deposition
; Light detection and ranging
; Particulate Matter
; Tree crowns
; Urban green
; Urban trees
; atmospheric deposition
; atmospheric pollution
; canopy architecture
; dust
; lidar
; morphology
; particulate matter
; pollution effect
; wind velocity
; World Health Organization
; Article
; atmospheric deposition
; gravimetry
; human
; leaf surface
; nonlinear system
; particulate matter
; particulate matter deposition
; plant density
; plant leaf
; remote sensing
; tree crown
; urban area
; velocity
; wet deposition
; wind
; Europe
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Urban dwellers often breathe air that does not meet the European and WHO standards. Next to legislative initiatives to lower atmospheric pollutants, much research has been conducted on the potential of urban trees as mitigation tool for atmospheric particles. While leaf-deposited dust has shown to vary significantly throughout single tree crowns, this study evaluated the influence of micro-scale tree crown morphology (leaf density) on the amount of leaf-deposited dust. Using a ground-based LiDAR approach, the three-dimensional tree crown morphology was obtained and compared to gravimetric measurements of leaf-deposited dust within three different size fractions (>10, 3-10 and 0.2-3μm). To our knowledge, this is the first application of ground-based LiDAR for comparison with gravimetric results of leaf-deposited particulate matter. Overall, an increasing leaf density appears to reduce leaf-deposition of atmospheric particles. This might be explained by a reduced wind velocity, suppressing turbulent deposition of atmospheric particles through impaction. Nevertheless, the effect of tree crown morphology on particulate deposition appears almost negligible (7% AIC decrease) compared to the influence of physical factors like height, azimuth and tree position. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80539
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Laboratory of Environmental and Urban Ecology, University of Antwerp, Antwerp, Belgium; Laboratory of Geo-Information Science and Remote Sensing, Wageningen University, Droevendaalsesteeg 3, Wageningen, Netherlands
Recommended Citation:
Hofman J,, Bartholomeus H,, Calders K,et al. On the relation between tree crown morphology and particulate matter deposition on urban tree leaves: A ground-based LiDAR approach[J]. Atmospheric Environment,2014-01-01,99