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  4. 中国科学院新生代地质与环境重点实验室
The intra-annual intrinsic water use efficiency dynamics based on an improved model

文献类型：期刊论文

作者Bing, Xiaojin4; Fang, Keyan4; Gong, Xiaoying4; Wang, Wenzhi3; Xu, Chenxi2; Li, Maihe5; Ruan, Chaoyue4; Ma, Weiting4; Li, Yingjun1; Zhou, Feifei4
刊名CLIMATIC CHANGE
出版日期2022-05-01
卷号172期号:1-2页码:19
关键词High-resolution tree-ring Dendrochronology iWUE(mes) model Drought stress Overestimation Southeast China
ISSN号0165-0009
DOI10.1007/s10584-022-03368-1
英文摘要The carbon isotope fractionation value (Delta) has been widely used to infer the intrinsic water use efficiency (iWUE) of C3 plants. Currently, the most commonly used iWUE method (expressed as iWUE(tra)) in tree-rings assumes that the mesophyll conductance in plants is infinite However, many observation-based studies have pointed out that such an assumption leads to overestimating the impact of carbon dioxide (CO2) on iWUE in plants. In this study, a constant g(s)/g(m) ratio (0.79) is introduced for calculating iWUE (expressed as iWUE(mes)). We apply this iWUE(mes) model to our newly developed intra-annual (10 samples per ring) Delta C-13 C chronologies of Clyptomeria fortunei tree for 1965-2017 at Gu Mountain Area and our annual Delta C-13 chronology of Pinus massoniana tree for 1865-2014 at Niumulin Natural Reserve in southeast China. Using dendrochronology techniques, our analysis shows that the current iWUE(tra) model overestimates the iWUE values by approximately a factor of two and that the iWUE value of trees inferred from iWUE(mes) modeling decreases significantly in summer-autumn time, which likely indicates that alternative factors play a role in limiting the degree of iWUE improvement under the drought-stressed forest in southeast China.
WOS关键词CARBON-ISOTOPE COMPOSITION ; ATMOSPHERIC CO2 ; CLIMATE-CHANGE ; GAS-EXCHANGE ; TREE GROWTH ; DROUGHT ; DISCRIMINATION ; DELTA-C-13 ; GRASSLAND ; PLANTS
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26020000] ; National Science Foundation of China[41822101] ; National Science Foundation of China[41888101] ; National Science Foundation of China[41971022] ; National Science Foundation of China[41772180] ; fellowship for Youth Talent Support Program of Fujian Province ; Swedish Formas project (Future Research Leaders)[2017-01408]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000802332800001
出版者SPRINGER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; fellowship for Youth Talent Support Program of Fujian Province ; fellowship for Youth Talent Support Program of Fujian Province ; Swedish Formas project (Future Research Leaders) ; Swedish Formas project (Future Research Leaders) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; fellowship for Youth Talent Support Program of Fujian Province ; fellowship for Youth Talent Support Program of Fujian Province ; Swedish Formas project (Future Research Leaders) ; Swedish Formas project (Future Research Leaders) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; fellowship for Youth Talent Support Program of Fujian Province ; fellowship for Youth Talent Support Program of Fujian Province ; Swedish Formas project (Future Research Leaders) ; Swedish Formas project (Future Research Leaders) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; fellowship for Youth Talent Support Program of Fujian Province ; fellowship for Youth Talent Support Program of Fujian Province ; Swedish Formas project (Future Research Leaders) ; Swedish Formas project (Future Research Leaders)
源URL[http://ir.iggcas.ac.cn/handle/132A11/106040]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Fang, Keyan
作者单位1.Taiyuan Normal Univ, Res Ctr Sci Dev Fenhe River Valley, Jinzhong, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolut & Regulat, Chengdu, Peoples R China
4.Fujian Normal Univ, Coll Geog Sci, Key Lab Humid Subtrop Ecogeog Proc, Minist, Fuzhou, Peoples R China
5.Swiss Fed Res Inst WSL, Birmensdorf, Switzerland
推荐引用方式
GB/T 7714		 Bing, Xiaojin,Fang, Keyan,Gong, Xiaoying,et al. The intra-annual intrinsic water use efficiency dynamics based on an improved model[J]. CLIMATIC CHANGE,2022,172(1-2):19.
APA Bing, Xiaojin.,Fang, Keyan.,Gong, Xiaoying.,Wang, Wenzhi.,Xu, Chenxi.,...&Zhou, Feifei.(2022).The intra-annual intrinsic water use efficiency dynamics based on an improved model.CLIMATIC CHANGE,172(1-2),19.
MLA Bing, Xiaojin,et al."The intra-annual intrinsic water use efficiency dynamics based on an improved model".CLIMATIC CHANGE 172.1-2(2022):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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