Institutional Repository of Key Laboratory of Cenozoic Geology and Environment, Chinese Academy of Sciences
| Tree growth and intrinsic water use efficiency of Chinese pine plantations along a precipitation gradient in northern China | |
| Li, Yuanqiao1,2; Xu, Chenxi3; Huang, Yongmei1,2; Huo, Xinxing1,2; Shi, Fangzhong1,2; Pan, Yingping1,2; Ren, Liang1,2; Wu, Xiuchen1,2 | |
| 2023-01-15 | |
| Source Publication | FOREST ECOLOGY AND MANAGEMENT
 |
| ISSN | 0378-1127 |
| Volume | 528Pages:8 |
| Abstract | The combined effects of rising temperature, elevated atmospheric CO2 levels and warming-induced droughts have led to an increase in tree intrinsic water use efficiency (iWUE). However, how and to what extent increasing iWUE compensates for tree growth in bioclimatic regions is not well understood. In this study, nine tree ring sampling sites of Chinese pine (Pinus tabulaeformis) plantations were selected along a precipitation gradient to explore the different contributions of iWUE to tree growth. The results showed that the coefficient of variation of tree ring chronology (TRIcv) decreased significantly with the precipitation gradient. There was a significant increasing trend in iWUE over time at all sites, the rate of which decreased with the precipitation gradient. Tree growth in drier regions was positively correlated with the drought index, and TRIcv showed an increasing trend as tree grew, which implies that tree growth in drier regions is unstable under the rapidly changing climate. At the three drier sites, drought was the dominant factor inducing increased iWUE, and iWUE explained between 17.51%, and 38.35% of tree growth. At the two wetter sites, there was a significant positive relationship between iWUE and temperature, and iWUE explained 18.61% and 12.10% of tree growth, respectively. Under dry conditions, the drier sites exhibited greater levels of reduced tree growth and maintained higher relative iWUE to adapt to the water deficit compared to other sites. Our results highlight that stomatal regulation has a critical role in maintaining tree growth and increasing iWUE could compensate for negative effects from drought in arid environments. |
| Keyword | Climate change Intrinsic water use efficiency Tree growth Stomatal regulation Chinese pine |
| DOI | 10.1016/j.foreco.2022.120609 |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Keyword | CARBON-ISOTOPE DISCRIMINATION ; CONTRASTING GROWTH ; EUROPEAN FORESTS ; STABLE-ISOTOPES ; SAP FLOW ; DROUGHT ; MORTALITY ; FRACTIONATION ; MECHANISMS ; STRATEGIES |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China ; [41922001] ; [42171050] |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Research Area | Forestry |
| WOS Subject | Forestry |
| WOS ID | WOS:000897725500006 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/106965 |
| Collection | 新生代地质与环境院重点实验室 |
| Corresponding Author | Wu, Xiuchen |
| Affiliation | 1.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Yuanqiao,Xu, Chenxi,Huang, Yongmei,et al. Tree growth and intrinsic water use efficiency of Chinese pine plantations along a precipitation gradient in northern China[J]. FOREST ECOLOGY AND MANAGEMENT,2023,528:8. |
| APA | Li, Yuanqiao.,Xu, Chenxi.,Huang, Yongmei.,Huo, Xinxing.,Shi, Fangzhong.,...&Wu, Xiuchen.(2023).Tree growth and intrinsic water use efficiency of Chinese pine plantations along a precipitation gradient in northern China.FOREST ECOLOGY AND MANAGEMENT,528,8. |
| MLA | Li, Yuanqiao,et al."Tree growth and intrinsic water use efficiency of Chinese pine plantations along a precipitation gradient in northern China".FOREST ECOLOGY AND MANAGEMENT 528(2023):8. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment