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	Simulating the exchanges of carbon dioxide, water vapor and heat over Changbai Mountains temperate broadleaved Korean pine mixed forest ecosystem
	Wang Q. F. ; Niu D. ; Yu G. R. ; Ren C. Y. ; Wen X. F. ; Chen J. M. ; Ju W. M.
	2005
关键词	carbon cycle water cycle BEPSh model eddy covariance measurement ChinaFLUX model surface dynamics balance canada
英文摘要	A process-based ecosystem productivity model BEPS (Boreal Ecosystem Productivity Simulator) was updated to simulate half-hourly exchanges of carbon, water and energy between the atmosphere and terrestrial ecosystem at a temperate broad-leaved Korean pine forest in the Changbai Mountains, China. The BEPSh model is able to capture the diurnal and seasonal variability in carbon dioxide, water vapor and heat fluxes at this site in the growing season of 2003. The model validation showed that the simulated net ecosystem productivity (NEP), latent heat flux (LE), sensible heat flux (H-s) are in good agreement with eddy covariance measurements with an R-2 value of 0.68, 0.86 and 0.72 for NEP, LE and Hs, respectively. The simulated annual NEP of this forest in 2003 was 300.5 gC/m(2), and was very close to the observed value. Driving this model with different climate scenarios, we found that the NEP in the Changbai Mountains temperate broad-leaved Korean pine mixed forest ecosystem was sensitive to climate variability, and the current carbon sink will be weakened under the condition of global warming. Furthermore, as a process-based model, BEPSh was also sensitive to physiological parameters of plant, such as maximum Rubisco activity (V-cmax) and the maximum stomatal conductance (g(max)) and needs to be carefully calibrated for other applications.
出处	Science in China Series D-Earth Sciences
卷	48
页	148-159
收录类别	SCI
语种	英语
ISSN号	1006-9313
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22888]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang Q. F.,Niu D.,Yu G. R.,et al. Simulating the exchanges of carbon dioxide, water vapor and heat over Changbai Mountains temperate broadleaved Korean pine mixed forest ecosystem. 2005.

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