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

NWIPB OpenIR

	A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland
	Yu, Lingfei ; Wang, Hao ; Wang, Guangshuai ; Song, Weimin ; Huang, Yao ; Li, Sheng-Gong ; Liang, Naishen ; Tang, Yanhong ; He, Jin-Sheng ; 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.
	2013-10-01
发表期刊	ENVIRONMENTAL POLLUTION ; Yu, LF; Wang, H; Wang, GS; Song, WM; Huang, Y; Li, SG; Liang, NS; Tang, YH; He, JS.A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland,ENVIRONMENTAL POLLUTION,2013,181():81-90
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.; 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.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/47256
专题	中国科学院西北高原生物研究所
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, Yu, LF; Wang, H; Wang, GS; Song, WM; Huang, Y; Li, SG; Liang, NS; Tang, YH; He, JS.A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland,ENVIRONMENTAL POLLUTION,2013,181():81-90,2013.
APA	Yu, Lingfei.,Wang, Hao.,Wang, Guangshuai.,Song, Weimin.,Huang, Yao.,...&He, JS .(2013).A comparison of methane emission measurements using eddy covariance and manual and automated chamber-based techniques in Tibetan Plateau alpine wetland.ENVIRONMENTAL POLLUTION.
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 (2013).