Tree-Ring Isotopes Provide Clues for Sink Limitation on Treeline Formation on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Pu, Xing1; Wang, Xiaochun2; Lyu, Lixin |
| 刊名 | ATMOSPHERE
 |
| 出版日期 | 2021 |
| 卷号 | 12期号:5 |
| 关键词 | alpine treeline water use efficiency elevation tree rings stable isotopes sink limitation |
| DOI | 10.3390/atmos12050540 |
| 文献子类 | Article |
| 英文摘要 | Identifying what determines the high elevation limits of tree growth is crucial for predicting how treelines may shift in response to climate change. Treeline formation is either explained by a low-temperature restriction of meristematic activity (sink limitation) or by the photosynthetic constraints (source limitation) on the trees at the treeline. Our study of tree-ring stable isotopes in two Tibetan elevational transects showed that treeline trees had higher iWUE than trees at lower elevations. The combination of tree-ring delta C-13 and delta O-18 data further showed that photosynthesis was higher for trees at the treeline than at lower elevations. These results suggest that carbon acquisition may not be the main determinant of the upper limit of trees; other processes, such as immature tissue growth, may be the main cause of treeline formation. The tree-ring isotope analysis (delta C-13 and delta O-18) suggests that Tibetan treelines have the potential to benefit from ongoing climate warming, due to their ability to cope with co-occurring drought stress through enhanced water use efficiency. |
| 学科主题 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 出版地 | BASEL |
| 电子版国际标准刊号 | 2073-4433 |
| WOS关键词 | WATER-USE EFFICIENCY ; WESTERN TIANSHAN MOUNTAINS ; PINUS-SYLVESTRIS ; STOMATAL CONDUCTANCE ; CARBON ISOTOPES ; SCHRENK SPRUCE ; SCOTS PINE ; GROWTH ; CO2 ; PHOTOSYNTHESIS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000653397800001 |
| 出版者 | MDPI |
| 资助机构 | Natural Science Foundation of China [41771060, 31870460] ; Open Grant for Key Laboratory of Sustainable Forest Ecosystem Management (Northeast Forestry University), Ministry of Education [KFJJ2019YB01] ; Institute of Botany, Chinese Academy of Sciences |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26656]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100093, Peoples R China 3.Northeast Forestry Univ, Sch Forestry, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin 150040, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pu, Xing,Wang, Xiaochun,Lyu, Lixin. Tree-Ring Isotopes Provide Clues for Sink Limitation on Treeline Formation on the Tibetan Plateau[J]. ATMOSPHERE,2021,12(5). |
| APA | Pu, Xing,Wang, Xiaochun,&Lyu, Lixin.(2021).Tree-Ring Isotopes Provide Clues for Sink Limitation on Treeline Formation on the Tibetan Plateau.ATMOSPHERE,12(5). |
| MLA | Pu, Xing,et al."Tree-Ring Isotopes Provide Clues for Sink Limitation on Treeline Formation on the Tibetan Plateau".ATMOSPHERE 12.5(2021). |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。