DOI: 10.1016/j.atmosenv.2013.10.054
Scopus记录号: 2-s2.0-84888258084
论文题名: Long-term measurement of terpenoid flux above a Larix kaempferi forest using a relaxed eddy accumulation method
作者: Mochizuki T ; , Tani A ; , Takahashi Y ; , Saigusa N ; , Ueyama M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 53
结束页码: 61
语种: 英语
英文关键词: Annual carbon budget
; Flux
; Isoprene
; Monoterpene
; Relaxed eddy accumulation method
; Volumetric soil water content
Scopus关键词: Aerosols
; Budget control
; Carbon
; Ecosystems
; Fluxes
; Isoprene
; Lipids
; Monoterpenes
; Rain
; Soil moisture
; Carbon budgets
; Long-term measurements
; Monoterpene
; Monoterpene composition
; Net ecosystem exchange
; Relaxed Eddy accumulation
; Secondary organic aerosols
; Soil water content
; Forestry
; carbon
; isoprene
; pinene
; rain
; terpene
; terpenoid
; water
; aerosol
; carbon budget
; carbon emission
; correlation
; deciduous tree
; eddy
; flux measurement
; forest ecosystem
; measurement method
; net ecosystem exchange
; soil water
; terpene
; article
; biochemical composition
; correlation analysis
; Dryopteris
; Dryopteris crassirhizoma
; forest
; forest soil
; Larix
; Larix kaempferi
; measurement
; nonhuman
; priority journal
; relaxed eddy accumulation method
; seasonal variation
; secondary organic aerosol
; soil moisture
; soil water content
; temperature dependence
; volumetry
; Aerosols
; Carbon
; Ecosystems
; Forestry
; Isoprene
; Lipids
; Moisture Content
; Monoterpenes
; Rain
; Soil
; Dryopteris crassirhizoma
; Filicophyta
; Larix kaempferi
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: Terpenoids emitted from forests contribute to the formation of secondary organic aerosols and affect the carbon budgets of forest ecosystems. To investigate seasonal variation in terpenoid flux involved in the aerosol formation and carbon budget, we measured the terpenoid flux of a Larix kaempferi forest between May 2011 and May 2012 by using a relaxed eddy accumulation method. Isoprene was emitted from a fern plant species Dryopteris crassirhizoma on the forest floor and monoterpenes from the L.kaempferi. α-Pinene was the dominant compound, but seasonal variation of the monoterpene composition was observed. High isoprene and monoterpene fluxes were observed in July and August. The total monoterpene flux was dependent on temperature, but several unusual high positive fluxes were observed after rain fall events. We found a good correlation between total monoterpene flux and volumetric soil water content (r=0.88), and used this correlation to estimate monoterpene flux after rain events and calculate annual terpenoid emissions. Annual carbon emission in the form of total monoterpenes plus isoprene was determined to be 0.93% of the net ecosystem exchange. If we do not consider the effect of rain fall, carbon emissions may be underestimated by about 50%. Our results suggest that moisture conditions in the forest soil is a key factor controlling the monoterpene emissions from the forest ecosystem. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80865
Appears in Collections: 气候变化事实与影响
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作者单位: Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka 422-8526, Japan; Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka 422-8526, Japan; National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8521, Japan
Recommended Citation:
Mochizuki T,, Tani A,, Takahashi Y,et al. Long-term measurement of terpenoid flux above a Larix kaempferi forest using a relaxed eddy accumulation method[J]. Atmospheric Environment,2014-01-01,83