DOI: 10.1016/j.atmosenv.2015.01.072
Scopus记录号: 2-s2.0-84922661037
论文题名: Quantifying regional, seasonal and interannual contributions of environmental factors on isoprene and monoterpene emissions estimates over eastern Texas
作者: Huang L ; , McGaughey G ; , McDonald-Buller E ; , Kimura Y ; , Allen D ; T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 106 起始页码: 120
结束页码: 128
语种: 英语
英文关键词: Biogenic emissions
; Drought
; Isoprene
; MEGAN
; Soil moisture
Scopus关键词: Atmospheric composition
; Drought
; Isoprene
; Moisture
; Plants (botany)
; Soil moisture
; Soils
; Volatile organic compounds
; Biogenic emission
; Biogenic volatile organic compounds
; Environmental factors
; Isoprene emission
; MEGAN
; Monoterpene emissions
; Seasonal and interannual variations
; Standard conditions
; Monoterpenes
; isoprene
; rain
; soil water
; terpene
; annual variation
; atmospheric pollution
; biogenic emission
; drought
; environmental factor
; isoprene
; monoterpene
; seasonality
; soil moisture
; volatile organic compound
; water stress
; air pollution
; Article
; canopy
; data base
; drought
; environmental factor
; environmental temperature
; leaf area
; light
; model
; priority journal
; seasonal variation
; soil moisture
; standard
; summer
; United States
; water stress
; Texas
; 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: Recent years have brought renewed attention to the effects of drought on emissions of biogenic volatile organic compounds. Variability in environmental inputs that influence isoprene and monoterpene emissions within eastern Texas was quantified by examining seasonal and interannual changes in activity factors intrinsic to the Model of Emissions of Gases and Aerosols from Nature (MEGAN) during years that included average-to-wet conditions (2007) and extreme drought and heat (2006 and 2011). Activity factors are used in MEGAN to multiplicatively adjust emissions rates from an assumed set of standard conditions for temperature, light, leaf area index (LAI), and soil moisture. Temperature was found to be the primary driver of seasonal and interannual variations of isoprene and monoterpene emissions; during drought years, reductions in LAI were dominated by predicted emissions increases caused by much warmer temperatures. The response of biogenic emissions to soil water stress is a major source of uncertainty. Dependent on the specific soil moisture database employed, predicted reductions in isoprene emissions ranged from minimal to -70% during the summer of 2011, a period characterized by all-time record drought in the South Central U.S. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81898
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Energy and Environmental Resources, The University of Texas at Austin, Austin, TX, United States
Recommended Citation:
Huang L,, McGaughey G,, McDonald-Buller E,et al. Quantifying regional, seasonal and interannual contributions of environmental factors on isoprene and monoterpene emissions estimates over eastern Texas[J]. Atmospheric Environment,2015-01-01,106