Recent Warming-Induced Tree Growth Enhancement at the Tibetan Treeline and the Link to Improved Water-Use Efficiency
文献类型：期刊论文
| 作者 | Pu, Xing2; Wang, Xiaochun3; Lyu, Lixin |
| 刊名 | FORESTS
 |
| 出版日期 | 2021 |
| 卷号 | 12期号:12 |
| 关键词 | tree rings cellulose stable isotopes elevation water-use efficiency high-elevation forests drought stress |
| DOI | 10.3390/f12121702 |
| 文献子类 | Article |
| 英文摘要 | Tree growth in high-elevation forests may increase as a result of increasing temperatures and CO2 concentrations in the atmosphere (C-a). However, the pattern and the physiological mechanism on how these two factors interact to affect tree growth are still poorly understood. Here, we analyzed the temporal changes in radial growth and tree-ring delta C-13 for Picea and Abies trees growing in both treeline and lower-elevation forests on the Tibetan Plateau. We found that the tree growth at the treeline has significantly accelerated during the past several decades but has remained largely stable or slightly declined at lower elevations. Further results based on tree-ring delta C-13 suggest that intrinsic water-use efficiency (iWUE) was generally higher at the treeline than in lower-elevation forests, although increasing trends of iWUE existed for all sites. This study demonstrated that the synergetic effects of elevated C-a and increasing temperatures have increased tree growth at the treeline but may not lead to enhanced tree growth in lower-elevation forests due to drought stress. These results demonstrate the elevational dependence of tree growth responses to climatic changes in high-elevation forests from a physiologically meaningful perspective. |
| 学科主题 | Forestry |
| 电子版国际标准刊号 | 1999-4907 |
| 出版地 | BASEL |
| WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; CLIMATE-CHANGE ; PINE ; CO2 ; VULNERABILITY ; DELTA-C-13 ; MORTALITY ; RESPONSES ; ALTITUDE ; IMPACTS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000737658500001 |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26657]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Northeast Forestry Univ, Sch Forestry, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin 150040, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pu, Xing,Wang, Xiaochun,Lyu, Lixin. Recent Warming-Induced Tree Growth Enhancement at the Tibetan Treeline and the Link to Improved Water-Use Efficiency[J]. FORESTS,2021,12(12). |
| APA | Pu, Xing,Wang, Xiaochun,&Lyu, Lixin.(2021).Recent Warming-Induced Tree Growth Enhancement at the Tibetan Treeline and the Link to Improved Water-Use Efficiency.FORESTS,12(12). |
| MLA | Pu, Xing,et al."Recent Warming-Induced Tree Growth Enhancement at the Tibetan Treeline and the Link to Improved Water-Use Efficiency".FORESTS 12.12(2021). |
入库方式： OAI收割
来源：植物研究所
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