DOI: 10.1016/j.atmosenv.2015.08.094
Scopus记录号: 2-s2.0-84941273964
论文题名: Forest-atmosphere BVOC exchange in diverse and structurally complex canopies: 1-D modeling of a mid-successional forest in northern Michigan
作者: Bryan A ; M ; , Cheng S ; J ; , Ashworth K ; , Guenther A ; B ; , Hardiman B ; S ; , Bohrer G ; , Steiner A ; L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 217
结束页码: 226
语种: 英语
英文关键词: Biogenic volatile organic compounds
; Canopy modeling
; Forest succession
; Mixed forests
; Tropospheric chemistry
Scopus关键词: Atmospheric composition
; Blending
; Isoprene
; Organic compounds
; Sensitivity analysis
; Troposphere
; Vegetation
; Volatile organic compounds
; Biogenic volatile organic compounds
; Canopy model
; Forest succession
; Mixed forests
; Tropospheric chemistry
; Forestry
; biogenic volatile organic compound
; isoprene
; unclassified drug
; volatile organic compound
; biogenic emission
; canopy architecture
; concentration (composition)
; foliage
; height
; isoprene
; mixed forest
; mortality
; one-dimensional modeling
; oxidation
; ozone
; succession
; troposphere
; vegetation type
; volatile organic compound
; volcanic aerosol
; Article
; atmosphere
; canopy
; foliage
; oxidation
; priority journal
; simulation
; sunlight
; United States
; Emission
; Foliar Analysis
; Forest Canopy
; Voc
; Michigan
; United States
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: Foliar emissions of biogenic volatile organic compounds (BVOC)-important precursors of tropospheric ozone and secondary organic aerosols-vary widely by vegetation type. Modeling studies to date typically represent the canopy as a single dominant tree type or a blend of tree types, yet many forests are diverse with trees of varying height. To assess the sensitivity of biogenic emissions to tree height variation, we compare two 1-D canopy model simulations in which BVOC emission potentials are homogeneous or heterogeneous with canopy depth. The heterogeneous canopy emulates the mid-successional forest at the University of Michigan Biological Station (UMBS). In this case, high-isoprene-emitting foliage (e.g., aspen and oak) is constrained to the upper canopy, where higher sunlight availability increases the light-dependent isoprene emission, leading to 34% more isoprene and its oxidation products as compared to the homogeneous simulation. Isoprene declines from aspen mortality are 10% larger when heterogeneity is considered. Overall, our results highlight the importance of adequately representing complexities of forest canopy structure when simulating light-dependent BVOC emissions and chemistry. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81493
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, MI, United States; Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States; Pacific Northwest National Laboratory, Atmospheric Sciences and Global Change Division, Richland, WA, United States; Department of Earth and the Environment, Boston University, Boston, MA, United States; Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH, United States
Recommended Citation:
Bryan A,M,, Cheng S,et al. Forest-atmosphere BVOC exchange in diverse and structurally complex canopies: 1-D modeling of a mid-successional forest in northern Michigan[J]. Atmospheric Environment,2015-01-01,120