, 46:303 | Cite as

Photosynthetic pathway of dominant plant species in the Qaidam Basin: evidence from foliar stable carbon isotope measurement

  • H. ChenEmail author
  • X. L. Xu
  • M. H. Song
  • H. Ouyang
Brief Communication


Foliar δ13C values of Calligogum kozlovi and Haloxylon ammodendron ranged from −13.13 to −15.11 ‰, while those of the rest 11 species were in the range of −22.22 to −27.73 ‰. This indicates that two of 13 dominant plant species in the Qaidam Basin possess a C4 photosynthetic pathway. Significant differences were observed for the average foliar δ13C values between C3 or C4 plant communities, between grass and shrub communities, even between the same species derived from different sites. Precipitation accounted for the major part of the differences.

Additional key words

C3 plants C4 plants desert vegetation precipitation 


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Copyright information

© Institute of Experimental Botany, ASCR, Praha 2008

Authors and Affiliations

  1. 1.Key Laboratory of Land Use, China Land Surveying and Planning InstituteMinistry of Land and ResourcesBeijingP.R. China
  2. 2.College of Resources and Environment SciencesnHebei Normal University, Hebei Key Laboratory of Environmental Change and Ecological ConstructionShijiazhuangP.R. China
  3. 3.Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijingP.R. China

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