DOI: 10.1111/gcb.13961
Scopus记录号: 2-s2.0-85035132222
论文题名: Do all leaf photosynthesis parameters of rice acclimate to elevated CO2, elevated temperature, and their combination, in FACE environments?
作者: Cai C. ; Li G. ; Yang H. ; Yang J. ; Liu H. ; Struik P.C. ; Luo W. ; Yin X. ; Di L. ; Guo X. ; Jiang W. ; Si C. ; Pan G. ; Zhu J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 4 起始页码: 1685
结束页码: 1707
语种: 英语
英文关键词: climate change
; free-air CO2enrichment
; leaf nitrogen content
; mesophyll conductance
; Oryza sativa L.
; photosynthesis model
; stomatal conductance
Scopus关键词: acclimation
; air temperature
; carbon dioxide enrichment
; climate change
; cultivar
; leaf
; nitrogen
; paddy field
; photosynthesis
; rice
; stomatal conductance
; Oryza sativa
英文摘要: Leaf photosynthesis of crops acclimates to elevated CO2and temperature, but studies quantifying responses of leaf photosynthetic parameters to combined CO2and temperature increases under field conditions are scarce. We measured leaf photosynthesis of rice cultivars Changyou 5 and Nanjing 9108 grown in two free-air CO2enrichment (FACE) systems, respectively, installed in paddy fields. Each FACE system had four combinations of two levels of CO2(ambient and enriched) and two levels of canopy temperature (no warming and warmed by 1.0–2.0°C). Parameters of the C3photosynthesis model of Farquhar, von Caemmerer and Berry (the FvCB model), and of a stomatal conductance (gs) model were estimated for the four conditions. Most photosynthetic parameters acclimated to elevated CO2, elevated temperature, and their combination. The combination of elevated CO2and temperature changed the functional relationships between biochemical parameters and leaf nitrogen content for Changyou 5. The gsmodel significantly underestimated gsunder the combination of elevated CO2and temperature by 19% for Changyou 5 and by 10% for Nanjing 9108 if no acclimation was assumed. However, our further analysis applying the coupled gs–FvCB model to an independent, previously published FACE experiment showed that including such an acclimation response of gshardly improved prediction of leaf photosynthesis under the four combinations of CO2and temperature. Therefore, the typical procedure that crop models using the FvCB and gsmodels are parameterized from plants grown under current ambient conditions may not result in critical errors in projecting productivity of paddy rice under future global change. © 2017 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110442
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: College of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, China; Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
Recommended Citation:
Cai C.,Li G.,Yang H.,et al. Do all leaf photosynthesis parameters of rice acclimate to elevated CO2, elevated temperature, and their combination, in FACE environments?[J]. Global Change Biology,2018-01-01,24(4)