A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland

	A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland
	Yu, Lingfei 1; Wang, Hao 2; Wang, Guangshuai 2; Song, Weimin 1; Huang, Yao 3; Li, Sheng-Gong 4; Liang, Naishen 5; Tang, Yanhong 5; He, Jin-Sheng 1,2
刊名	environmental pollution
	2013-10-01
卷号	181 页码:81-90
关键词	Alpine ecosystem Greenhouse gas Micrometeorological measurement Multi-technique assessment Qinghai-Tibetan Plateau
ISSN号	0269-7491
通讯作者	he, js (reprint author), peking univ, minist educ, key lab earth surface proc, coll urban & environm sci,dept ecol, 5 yiheyuan rd, beijing 100871, peoples r china.
中文摘要	comparing of different ch4 flux measurement techniques allows for the independent evaluation of the performance and reliability of those techniques. we compared three approaches, the traditional discrete manual static chamber (msc), continuous automated chamber (cac) and eddy covariance (ec) methods of measuring the ch4 fluxes in an alpine wetland. we found a good agreement among the three methods in the seasonal ch4 flux patterns, but the diurnal patterns from both the cac and ec methods differed. while the diurnal ch4 flux variation from the cac method was positively correlated with the soil temperature, the diurnal variation from the ec method was closely correlated with the solar radiation and net co2 fluxes during the daytime but was correlated with the soil temperature at nighttime. the msc method showed 25.3% and 7.6% greater ch4 fluxes than the cac and ec methods when measured between 09:00 h and 12:00 h, respectively. (c) 2013 elsevier ltd. all rights reserved.
英文摘要	comparing of different ch4 flux measurement techniques allows for the independent evaluation of the performance and reliability of those techniques. we compared three approaches, the traditional discrete manual static chamber (msc), continuous automated chamber (cac) and eddy covariance (ec) methods of measuring the ch4 fluxes in an alpine wetland. we found a good agreement among the three methods in the seasonal ch4 flux patterns, but the diurnal patterns from both the cac and ec methods differed. while the diurnal ch4 flux variation from the cac method was positively correlated with the soil temperature, the diurnal variation from the ec method was closely correlated with the solar radiation and net co2 fluxes during the daytime but was correlated with the soil temperature at nighttime. the msc method showed 25.3% and 7.6% greater ch4 fluxes than the cac and ec methods when measured between 09:00 h and 12:00 h, respectively. (c) 2013 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	environmental sciences
研究领域[WOS]	environmental sciences & ecology
关键词[WOS]	soil co2 efflux ; flux measurements ; environmental controls ; diurnal-variation ; ch4 emission ; peat meadow ; fen ; ecosystem ; forest ; pressurization
收录类别	SCI
语种	英语
WOS记录号	WOS:000323807900012
公开日期	2014-05-09
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/3923]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Coll Urban & Environm Sci,Dept Ecol, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Chinese Ecosyst Res Network, Synth Res Ctr,Key Lab Ecosyst Network Observat &, Beijing 100101, Peoples R China 5.Natl Inst Environm Studies, Ctr Global Environm Res, Tsukuba, Ibaraki 3058506, Japan
推荐引用方式 GB/T 7714	Yu, Lingfei,Wang, Hao,Wang, Guangshuai,et al. A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland[J]. environmental pollution,2013,181:81-90.
APA	Yu, Lingfei.,Wang, Hao.,Wang, Guangshuai.,Song, Weimin.,Huang, Yao.,...&He, Jin-Sheng.(2013).A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland.environmental pollution,181,81-90.
MLA	Yu, Lingfei,et al."A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland".environmental pollution 181(2013):81-90.