Eddy flux corrections for CO2 exchange in broad-leaved Korean pine mixed forest of Changbai Mountains

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所

	Eddy flux corrections for CO2 exchange in broad-leaved Korean pine mixed forest of Changbai Mountains
	Wu, JB; Guan, DX; Sun, XM; Yu, GR; Zhao, XS; Han, SJ; Jin, CJ; Guan, DX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2005
卷号	48 页码:106-115
关键词	Eddy Covariance Method Carbon Cycle Flux Correction Co2 Exchange Tilt Correction
ISSN号	1006-9313
英文摘要	Based on analysis of mechanisms causing energy no-closure and nocturnal low fluxes issues for CO(2)exchange studies by eddy covariance method, corrections were done with the raw data sets obtained from Changbai Mountains forest flux site, to evaluate the impacts of sonic anemometer tilt, frequency response limitations and advection on estimation Of CO2 exchange, respectively. The results show that the planar fit coordinate transforming method is superior to the streamline coordinate transforming method in tilt correction. The latter could cause a systematical underestimation of eddy fluxes relating with the angle of sensor and terrain tilt. The underestimation Of CO2 and energy fluxes for frequency response limitations average 3.0% and 2.0% during daytime, respectively, which increase by 9.0% and 5.5% during nighttime, respectively. The corrections of frequency response limitations are closely related to atmospheric stability. The advection loss Of CO2 fluxes is dominated by nocturnal vertical advection, which is at least 18% when the horizontal advection is neglected. It is suggested that more work be done to understand the characteristics of horizontal advection and turbulent eddies under a complex circumstance.
学科主题	Geosciences, Multidisciplinary
语种	英语
WOS记录号	WOS:000229942300010
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55119]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Guan, DX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wu, JB,Guan, DX,Sun, XM,et al. Eddy flux corrections for CO2 exchange in broad-leaved Korean pine mixed forest of Changbai Mountains[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48:106-115.
APA	Wu, JB.,Guan, DX.,Sun, XM.,Yu, GR.,Zhao, XS.,...&Guan, DX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2005).Eddy flux corrections for CO2 exchange in broad-leaved Korean pine mixed forest of Changbai Mountains.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48,106-115.
MLA	Wu, JB,et al."Eddy flux corrections for CO2 exchange in broad-leaved Korean pine mixed forest of Changbai Mountains".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48(2005):106-115.