Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation

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	Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation
	Huang, Kun(黄昆) ; Wang, SQ ; Zhou, L ; Wang, HM ; Liu, YF ; Yang, FT
刊名	ENVIRONMENTAL RESEARCH LETTERS
	2013
卷号	8 期号:3 页码:-
关键词	climate extreme events forest potential productivity drought ice rain
通讯作者	Huang, Kun(黄昆)
英文摘要	Increasing occurrences of climate extreme events urge us to study their impacts on terrestrial carbon sequestration. Ecosystem potential productivity deficits could characterize such impacts and display the ecosystem vulnerability and resilience to the extremes in climate change, whereas few studies have analyzed the yearly dynamics of forest potential productivity deficits. Based on a perfect-deficit approach, we used in situ eddy covariance flux data and meteorological observation data at Qianyanzhou station from 2003 to 2010 to explore the relationship between potential productivity and climate extremes, such as droughts in 2003 and 2007, ice rain in 2005, and an ice storm in 2008. We found (1) the monthly canopy photosynthetic capacity (CPC) deficits could be mainly explained by air temperature (Ta) deficits (R-2 = 0.45, p < 0.000 01); (2) a significant correlation was noted between seasonal CPC deficits and co-current Ta deficits (R-2 = 0.45, p < 0.000 01), especially in winter (R-2 = 0.79, p = 0.003); (3) drought in summer exerted a negatively lagged effect on potential productivity (R-2 = 0.59, p = 0.02), but at a short time scale; and (4) annual CPC deficits captured the impacts of climate extremes on the forest ecosystem potential productivity, and the two largest potential productivity deficits occurred in 2003 (relative CPC deficits = 0.34) and in 2005 (relative CPC deficits = 0.35), respectively. With the perfect-deficit approach, the forest ecosystem vulnerability to extremes was analyzed in a novel way.
收录类别	SCI
资助信息	National Natural Science Foundation of China 31070438 ；National Basic Research Program of China (973 Program) 2010CB833503 ；CAS for Strategic Priority Research Program XDA05050602
语种	英语
公开日期	2013-11-11
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27980]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Huang, Kun,Wang, SQ,Zhou, L,et al. Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation[J]. ENVIRONMENTAL RESEARCH LETTERS,2013,8(3):-.
APA	Huang, Kun,Wang, SQ,Zhou, L,Wang, HM,Liu, YF,&Yang, FT.(2013).Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation.ENVIRONMENTAL RESEARCH LETTERS,8(3),-.
MLA	Huang, Kun,et al."Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation".ENVIRONMENTAL RESEARCH LETTERS 8.3(2013):-.