IGSNRR OpenIR
Long-term changes in the tree radial growth and intrinsic water-use efficiency of Chuanxi spruce (Picea likiangensis var. balfouriana) in southwestern China
Wang Yang1,2; Zhang Yong1; Fang Ouya3; Shao Xuemei1
2018-06-01
Source PublicationJOURNAL OF GEOGRAPHICAL SCIENCES
ISSN1009-637X
Volume28Issue:6Pages:833-844
Corresponding AuthorShao Xuemei(shaoxm@igsnrr.ac.cn)
AbstractElevated CO2 level in the atmosphere is expected to improve the tree growth rates and intrinsic water-use efficiency (iWUE). Although current results inferring from tree rings found the tree growth decline in water-limited area, it is still unclear whether spruce trees in humid southwestern China benefit from the increasing CO2. In this study, tree-ring width data were used to investigate the tree radial growth rate of Chuanxi spruce (Picea likiangensis var. balfouriana). Moreover, combining with the tree-ring carbon isotope date, we analyzed the physiological responses of Chuanxi spruce to rising CO2 concentrations in the atmosphere (Ca) associated with climatic change in southwestern China. From 1851 to 2009, iWUE of Chuanxi spruce rose by approximately 30.4%, and the ratio of atmospheric CO2 to leaf intercellular CO2 concentration (Ci/Ca) showed no significant trend in the study area. The result suggested that Chuanxi spruce used an active response strategy when Ca was significantly increased. iWUE showed a significant increasing trend in parallel with tree radial growth, indicating that the increasing iWUE resulted in an increase in radial growth. These results suggest that spruce forests in southwestern China have not shown declining trends under increasing Ca and climate change scenarios, in contrast to trees growing in water-limited areas. Therefore, spruce forests benefit from the increasing CO2 in the atmosphere in the humid areas of southwestern China.
Keywordtree ring basel area increment carbon isotope intrinsic water-use efficiency CO2 fertilization
DOI10.1007/s11442-018-1508-7
WOS KeywordINCREASED ATMOSPHERIC CO2 ; STOMATAL CONDUCTANCE ; TIBETAN PLATEAU ; STABLE-ISOTOPES ; CARBON-DIOXIDE ; CLIMATE-CHANGE ; FOREST ; RESPONSES ; RINGS ; TEMPERATURE
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China '973'[2012CB956201] ; Key Program of National Natural Science Foundation of China[41630529]
Funding OrganizationNational Basic Research Program of China '973' ; Key Program of National Natural Science Foundation of China
WOS Research AreaPhysical Geography
WOS SubjectGeography, Physical
WOS IDWOS:000430098100009
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57375
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShao Xuemei
Affiliation1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China
3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China
Recommended Citation
GB/T 7714
Wang Yang,Zhang Yong,Fang Ouya,et al. Long-term changes in the tree radial growth and intrinsic water-use efficiency of Chuanxi spruce (Picea likiangensis var. balfouriana) in southwestern China[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2018,28(6):833-844.
APA Wang Yang,Zhang Yong,Fang Ouya,&Shao Xuemei.(2018).Long-term changes in the tree radial growth and intrinsic water-use efficiency of Chuanxi spruce (Picea likiangensis var. balfouriana) in southwestern China.JOURNAL OF GEOGRAPHICAL SCIENCES,28(6),833-844.
MLA Wang Yang,et al."Long-term changes in the tree radial growth and intrinsic water-use efficiency of Chuanxi spruce (Picea likiangensis var. balfouriana) in southwestern China".JOURNAL OF GEOGRAPHICAL SCIENCES 28.6(2018):833-844.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang Yang]'s Articles
[Zhang Yong]'s Articles
[Fang Ouya]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang Yang]'s Articles
[Zhang Yong]'s Articles
[Fang Ouya]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang Yang]'s Articles
[Zhang Yong]'s Articles
[Fang Ouya]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.