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
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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):-. |
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