DOI: 10.1016/j.atmosenv.2014.06.038
Scopus记录号: 2-s2.0-84903604588
论文题名: Atmospheric black carbon deposition and characterization of biomass burning tracers in a northern temperate forest
作者: Santos F ; , Fraser M ; P ; , Bird J ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 95 起始页码: 383
结束页码: 390
语种: 英语
英文关键词: Atmospheric black carbon deposition
; Biogenic emission
; Docosanoic acid
; Elemental carbon
; Levoglucosan
; Molecular markers
Scopus关键词: Carbon dioxide
; Deposition
; Ecosystems
; Forestry
; Global warming
; Meteorological problems
; Particulate emissions
; Polycyclic aromatic hydrocarbons
; Residence time distribution
; Saturated fatty acids
; Soils
; Biogenic emission
; Black carbon
; Elemental carbon
; Levoglucosan
; Molecular marker
; Soil pollution
; alkane derivative
; arachidic acid
; black carbon
; carbohydrate
; carboxylic acid derivative
; cholestane derivative
; levoglucosan
; molecular marker
; organic carbon
; palmitic acid
; polycyclic aromatic hydrocarbon
; tracer
; aerosol composition
; air-soil interaction
; atmospheric deposition
; biogenic emission
; biomass burning
; black carbon
; forest ecosystem
; particle size
; particulate matter
; radiative forcing
; temperate forest
; tracer
; article
; atmospheric deposition
; biomass
; calculation
; combustion
; dry deposition
; forest
; particulate matter
; priority journal
; soil
; summer
; temperate deciduous forest
; United States
; Aromatic Compounds
; Carbon Black
; Carbon Dioxide
; Deposition
; Ecosystems
; Fatty Acids
; Hydrocarbons
; Levoglucosan
; Particulate Emissions
; Pollution
; Soil
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: Aerosol black carbon (BC) is considered the second largest contributor to global warming after CO2, and is known to increase the atmosphere's temperature, decrease the albedo in snow/ice, and influence the properties and distribution of clouds. BC is thought to have a long mean residence time in soils, and its apparent stability may represent a significant stable sink for atmospheric CO2. Despite recent efforts to quantify BC in the environment, the quantification of BC deposition rates from the atmosphere to terrestrial ecosystems remains scarse. To better understand the contribution of atmospheric BC inputs to soils via dry deposition and its dominant emission sources, atmospheric fine particle (PM2.5) were collected at the University of Michigan Biological Station from July to September in 2010 and 2011. PM2.5 samples were analyzed for organic C, BC, and molecular markers including particulate sugars, carboxylic acids, n-alkanes, polycyclic aromatic hydrocarbons, and cholestane. Average atmospheric BC concentrations in northern Michigan were 0.048±0.06μgm-3 in summer 2010, and 0.049±0.064μgm-3 in summer 2011. Based on atmospheric concentrations, particulate deposition calculations, and documented soil BC, we conclude that atmospheric deposition is unlikely to comprise a significant input pathway for BC in northern forest ecosystem. The major organic tracers identified in fine particulates (e.g. levoglucosan and docosanoic acid) suggest that ambient PM2.5 concentrations were mainly influenced by biomass burning and epicuticular plant waxes. These results provide baseline data needed for future assessments of atmospheric BC in rural temperate forests. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81083
Appears in Collections: 气候变化事实与影响
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作者单位: School of Earth and Environmental Sciences, Queens College, City University of New York, Flushing, NY, United States; The Graduate Center, City University of New York, New York, NY, United States; Global Institute of Sustainability, Arizona State University, PO Box 875402, Tempe, AZ, United States; Department of Forestry, Michigan State University, 480 Wilson Road, Natural Resources Building, East Lansing, MI, United States
Recommended Citation:
Santos F,, Fraser M,P,et al. Atmospheric black carbon deposition and characterization of biomass burning tracers in a northern temperate forest[J]. Atmospheric Environment,2014-01-01,95