Acclimation of Foliar Respiration and Photosynthesis in Response to Experimental Warming in a Temperate Steppe in Northern China

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	Acclimation of Foliar Respiration and Photosynthesis in Response to Experimental Warming in a Temperate Steppe in Northern China
	Chi, YongGang(迟永刚) ; Xu, M ; Shen, RC ; Yang, QP ; Huang, BR ; Wan, SQ
刊名	PLOS ONE
	2013
卷号	8 期号:2 页码:-
通讯作者	Xu, M
英文摘要	Background: Thermal acclimation of foliar respiration and photosynthesis is critical for projection of changes in carbon exchange of terrestrial ecosystems under global warming. Methodology/Principal Findings: A field manipulative experiment was conducted to elevate foliar temperature (T-leaf) by 2.07 degrees C in a temperate steppe in northern China. R-d/T-leaf curves (responses of dark respiration to T-leaf), A(n)/T-leaf curves (responses of light-saturated net CO2 assimilation rates to T-leaf), responses of biochemical limitations and diffusion limitations in gross CO2 assimilation rates (A(g)) to T-leaf, and foliar nitrogen (N) concentration in Stipa krylovii Roshev. were measured in 2010 (a dry year) and 2011 (a wet year). Significant thermal acclimation of R-d to 6-year experimental warming was found. However, A(n) had a limited ability to acclimate to a warmer climate regime. Thermal acclimation of R-d was associated with not only the direct effects of warming, but also the changes in foliar N concentration induced by warming. Conclusions/Significance: Warming decreased the temperature sensitivity (Q(10)) of the response of R-d/A(g) ratio to T-leaf. Our findings may have important implications for improving ecosystem models in simulating carbon cycles and advancing understanding on the interactions between climate change and ecosystem functions.
收录类别	SCI
资助信息	National Key Research and Development Program of China 2010CB833500;100 Talents Program of the Chinese Academy of Sciences;National Natural Science Foundation 30925009
公开日期	2013-04-08
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27858]
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	Chi, YongGang,Xu, M,Shen, RC,et al. Acclimation of Foliar Respiration and Photosynthesis in Response to Experimental Warming in a Temperate Steppe in Northern China[J]. PLOS ONE,2013,8(2):-.
APA	Chi, YongGang,Xu, M,Shen, RC,Yang, QP,Huang, BR,&Wan, SQ.(2013).Acclimation of Foliar Respiration and Photosynthesis in Response to Experimental Warming in a Temperate Steppe in Northern China.PLOS ONE,8(2),-.
MLA	Chi, YongGang,et al."Acclimation of Foliar Respiration and Photosynthesis in Response to Experimental Warming in a Temperate Steppe in Northern China".PLOS ONE 8.2(2013):-.