IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Correlations between net primary productivity and foliar carbon isotope ratio across a Tibetan ecosystem transect
Luo, Tianxiang1; Zhang, Lin1; Zhu, Huazhong2; Daly, Christopher3; Li, Mingcai1; Luo, Ji4
Corresponding AuthorLuo, Tianxiang
2009
Source PublicationECOGRAPHY
ISSN0906-7590
EISSN1600-0587
Volume32Issue:3Pages:526-538
SubtypeArticle
AbstractWarming climate could affect leaf-level carbon isotope composition (delta(13)C) through variations in photosynthetic gas exchange. However, it is still unclear to what extent variations in foliar delta(13)C can be used to detect changes in net primary productivity (NPP) because leaf physiology is only one of many determinants of stand productivity. We aim to examine how well site-mean foliar delta(13)C and stand NPP co-vary across large resource gradients using data obtained from the Tibetan Alpine Vegetation Transects (1900-4900 m, TAVT). The TAVT data indicated a robust negative correlation between foliar delta(13)C and NPP across ecosystems (NPP=-2.7224 delta(13)C-67.738, r(2)=0.60, p < 0.001). The mean foliar delta(13)C decreased with increasing annual precipitation and its covariation with mean temperature and soil organic carbon and nitrogen contents. The results were further confirmed by global literature data. Pooled delta(13)C data from global literature and this study explained 60% of variations in annual NPP both from TAVT-measures and MODIS-estimates across 67 sites. Our results appear to support a conceptual model relating foliar delta(13)C and nitrogen concentration (N(mass)) to NPP, suggesting that: 1) there is a general (negative) relationship between delta(13)C and NPP across different water availability conditions; 2) in water-limited conditions, water availability has greater effects on NPP than N(mass); 3) when water is not limiting, NPP increases with increasing N(mass).
Keyword:Water-use Efficiency Leaf-area Index Canopy Photosynthesis Nitrogen Allocation Natural-abundance Rainfall Gradient Alpine Gradients Atmospheric Co2 Life-span Discrimination
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1111/j.1600-0587.2008.05735.x
WOS Subject ExtendedBiodiversity & Conservation ; Environmental Sciences & Ecology
Indexed BySCI
WOS KeywordWATER-USE EFFICIENCY ; LEAF-AREA INDEX ; CANOPY PHOTOSYNTHESIS ; NITROGEN ALLOCATION ; NATURAL-ABUNDANCE ; RAINFALL GRADIENT ; ALPINE GRADIENTS ; ATMOSPHERIC CO2 ; LIFE-SPAN ; DISCRIMINATION
Language英语
Quartile2区
TOP
WOS SubjectBiodiversity Conservation ; Ecology
WOS IDWOS:000267659400018
Funding OrganizationNational Key Projects for Basic Research of China(2005CB422005) ; National Natural Science Foundation of China(40671069) ; International Cooperation Project of the USDA Forest Service Northern Global Change Program(05-IC-11242343-064)
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10563
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Oregon State Univ, PRISM Grp, Corvallis, OR 97331 USA
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Luo, Tianxiang,Zhang, Lin,Zhu, Huazhong,et al. Correlations between net primary productivity and foliar carbon isotope ratio across a Tibetan ecosystem transect[J]. ECOGRAPHY,2009,32(3):526-538.
APA Luo, Tianxiang,Zhang, Lin,Zhu, Huazhong,Daly, Christopher,Li, Mingcai,&Luo, Ji.(2009).Correlations between net primary productivity and foliar carbon isotope ratio across a Tibetan ecosystem transect.ECOGRAPHY,32(3),526-538.
MLA Luo, Tianxiang,et al."Correlations between net primary productivity and foliar carbon isotope ratio across a Tibetan ecosystem transect".ECOGRAPHY 32.3(2009):526-538.
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