IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Tree ring delta O-18 reveals no long-term change of atmospheric water demand since 1800 in the northern Great Hinggan Mountains, China
Liu, Xiaohong1,2; Zhang, Xuanwen2,3; Zhao, Liangju4; Xu, Guobao2; Wang, Lixin5; Sun, Weizhen2; Zhang, Qiuliang6; Wang, Wenzhi7; Zeng, Xiaomin2,3; Wu, Guoju2,3
2017-07-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
Volume122Issue:13Pages:6697-6712
SubtypeArticle
AbstractGlobal warming will significantly increase transpirational water demand, which could dramatically affect plant physiology and carbon and water budgets. Tree ring delta O-18 is a potential index of the leaf-to-air vapor-pressure deficit (VPD) and therefore has great potential for long-term climatic reconstruction. Here we developed delta O-18 chronologies of two dominant native trees, Dahurian larch (Larix gmelinii Rupr.) and Mongolian pine (Pinus sylvestris var. mongolica), from a permafrost region in the Great Hinggan Mountains of northeastern China. We found that the July-August VPD and relative humidity were the dominant factors that controlled tree ring delta O-18 in the study region, indicating strong regulation of stomatal conductance. Based on the larch and pine tree ring delta O-18 chronologies, we developed a reliable summer (July-August) VPD reconstruction since 1800. Warming growing season temperatures increase transpiration and enrich cellulose O-18, but precipitation seemed to be the most important influence on VPD changes in this cold region. Periods with stronger transpirational demand occurred around the 1850s, from 1914 to 1925, and from 2005 to 2010. However, we found no overall long-term increasing or decreasing trends for VPD since 1800, suggesting that despite the increasing temperatures and thawing permafrost throughout the region, forest transpirational demand has not increased significantly during the past two centuries. Under current climatic conditions, VPD did not limit growth of larch and pine, even during extremely drought years. Our findings will support more realistic evaluations and reliable predictions of the potential influences of ongoing climatic change on carbon and water cycles and on forest dynamics in permafrost regions.
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2017JD026660
WOS Subject ExtendedMeteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordOXYGEN-ISOTOPE RATIOS ; VAPOR-PRESSURE DEFICIT ; STABLE-ISOTOPES ; MODERN PRECIPITATION ; NORTHWESTERN CHINA ; TIBETAN PLATEAU ; FOREST ; CLIMATE ; TEMPERATURE ; CELLULOSE
Language英语
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000407900300001
Funding OrganizationMajor State Basic Research Development Program of China (973 Program)(2013CBA01808) ; National Natural Science Foundation of China(41571196 ; Self-determination Project of the State Key Laboratory of Cryospheric Sciences(SKLCS-ZZ-2017) ; Division of Earth Sciences of National Science Foundation(NSF EAR-1562055) ; Agriculture and Food Research Initiative program of the USDA National Institute of Food and Agriculture(2017-67013-26191) ; 41421061)
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19038
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorLiu, Xiaohong
Affiliation1.Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Shaanxi, Peoples R China
2.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
4.Northwest Univ, Coll Urban & Environm Sci, Xian, Shaanxi, Peoples R China
5.Indiana Univ Purdue Univ, Dept Earth Sci, Indianapolis, IN 46202 USA
6.Inner Mongolia Agr Univ, Coll Forestry, Hohhot, Peoples R China
7.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolut & Regulat, Chengdu, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xiaohong,Zhang, Xuanwen,Zhao, Liangju,et al. Tree ring delta O-18 reveals no long-term change of atmospheric water demand since 1800 in the northern Great Hinggan Mountains, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(13):6697-6712.
APA Liu, Xiaohong.,Zhang, Xuanwen.,Zhao, Liangju.,Xu, Guobao.,Wang, Lixin.,...&Wu, Guoju.(2017).Tree ring delta O-18 reveals no long-term change of atmospheric water demand since 1800 in the northern Great Hinggan Mountains, China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(13),6697-6712.
MLA Liu, Xiaohong,et al."Tree ring delta O-18 reveals no long-term change of atmospheric water demand since 1800 in the northern Great Hinggan Mountains, China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.13(2017):6697-6712.
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