期刊
ATMOSPHERIC ENVIRONMENT
卷 125, 期 -, 页码 178-187出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2015.11.023
关键词
PM pollution; Dry deposition; Vegetation collection; Land use types; Seasons
资金
- Forestry special funds for public welfare projects of China [201304301]
- Beijing Municipal Science and Technology Project [Z141100006014031]
- Youth Foundation of Beijing Municipal Bureau of Landscape and Forestry [2014-4-7]
The dry deposition of particular matters from atmosphere to ecosystems is an undesirable consequence of this pollution while the deposition process is also influenced by different land use types. In current study, concentration of fine particles, coarse particles and meteorological data were collected during the daytime in an artificial forest, wetland and a water surface in the Beijing Olympic Park. Dry deposition velocity, fluxes and vegetation collection were calculated by different models and the results were compared. The results show: (1) the deposition velocity onto the forest canopy was higher than which onto the wetland and the water surface and the velocity varied in different seasons; (2) the fine particles deposited most in the winter while the coarse particles was in the spring; (3) the vegetation collection rates of fine particles were lower than coarse particles, and the forest collected more PMs than the wetland plants. (C) 2015 Elsevier Ltd. All rights reserved.
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