Does increasing intrinsic water use efficiency (iWUE) stimulate tree growth at natural alpine timberline on the southeastern Tibetan Plateau?
文献类型：期刊论文
| 作者 | Huang, R (Huang, Ru)1,3; Zhu, HF (Zhu, Haifeng)1,6; Liu, XH (Liu, Xiaohong)2,5; Liang, EY (Liang, Eryuan)1; Griessinger, J (Griessinger, Jussi)4; Wu, GJ (Wu, Guoju)2; Li, XX (Li, Xiaoxia)1; Brauning, A (Brauning, Achim); Liu, XH |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2017 |
| 卷号 | 148期号:0页码:217-226 |
| 关键词 | CARBON-ISOTOPE DISCRIMINATION RISING ATMOSPHERIC CO2 CLIMATE-CHANGE ELEVATED CO2 TEMPERATURE-VARIATIONS DIOXIDE CONCENTRATIONS STOMATAL CONDUCTANCE PINUS-TABULAEFORMIS EUROPEAN FORESTS ENRICHMENT FACE |
| DOI | 10.1016/j.gloplacha.2016.11.017 |
| 文献子类 | Article |
| 英文摘要 | Little is known about whether increasing iWUE (intrinsic water use efficiency) can stimulate tree growth in the temperature-limited natural timberlines. Here, we presented the basal area increment (BAI) and iWUE chronologies of Smith fir (Abies georgei var. smithii) from 1900 to 2006 at a high-elevation (ca. 4400 m a.s.l.) timberline in the humid Sygera Mountains, southeastern Tibetan Plateau (TP). The commonality analysis model was applied to investigate the relationships among BAI, temperatures, atmospheric CO2 concentration (C-a) and iWUE during 1961-2006, taking into account of both pure and joint effects. As illustrated by the commonality analysis model, the pure effect of C-a (39.15%) had more stronger influence on iWUE than that of the Tmean (annul mean temperature, 0.12%), but the joint effect between C-a and Tmean (49.79%) on iWUE was stronger than any pure effect for the raw data with an increasing trend. For the first-difference data with year-to-year variations, the pure effect of C-a (7.72%) on iWUE was stronger than that of Tmean (0.59%) and the joint effect between them (0.59%). All above imply the C-a is the dominant factor for iWUE both for the 46-year trend and interannual variations. In addition, as showed by the commonality analysis model, the pure effect of iWUE (17.57%) played a much more important role on BAI than that of temperatures (smt, mean temperature during June, July, August of current year, 5.92%; amt, mean temperature during September, October, November of previous year, 3.04%), while joint effects of iWUE and temperatures contributed more (27.96%; 13.90%; 16.47%) to the BAI than their pure effects for the raw data with an increasing linear trend. For the,first-difference data with interannual variations, the pure effect of smt (12.45%) had much more effect on BAI than that of iWUE (5.49%), at the same time the joint iWUE and temperatures contributed less (3.56%; 1.9%; 1.31%) to the BAI than their pure effects. These results suggest that an increasing iWUE could enhance 46-year increasing tree growth trend at humid and high-elevation timberlines, supporting the CO2 fertilization hypothesis, while temperatures dominate the interannual variations of tree growth. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | 自然地理学 |
| WOS研究方向 | Physical Geography; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000393528200018 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8397]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Liu, XH |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China. 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China. 3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China. 4.Univ Erlangen Nurnberg, Inst Geog, Wetterkreuz 15, D-91058 Erlangen, Germany. 5.Shaanxi Normal Univ, Tourism & Environm Coll, Xian 710119, Peoples R China. 6.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Huang, R ,Zhu, HF ,Liu, XH ,et al. Does increasing intrinsic water use efficiency (iWUE) stimulate tree growth at natural alpine timberline on the southeastern Tibetan Plateau?[J]. GLOBAL AND PLANETARY CHANGE,2017,148(0):217-226. |
| APA | Huang, R .,Zhu, HF .,Liu, XH .,Liang, EY .,Griessinger, J .,...&Liu, XH.(2017).Does increasing intrinsic water use efficiency (iWUE) stimulate tree growth at natural alpine timberline on the southeastern Tibetan Plateau?.GLOBAL AND PLANETARY CHANGE,148(0),217-226. |
| MLA | Huang, R ,et al."Does increasing intrinsic water use efficiency (iWUE) stimulate tree growth at natural alpine timberline on the southeastern Tibetan Plateau?".GLOBAL AND PLANETARY CHANGE 148.0(2017):217-226. |
入库方式： OAI收割
来源：青藏高原研究所
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