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Chinese Science Bulletin

, Volume 42, Issue 21, pp 1821–1823 | Cite as

A method of quantitatively calculating amount of allochthonous organic carbon in lake sediments

  • Junlong Qian
  • Sumin Wang
  • Bin Xue
  • Rusong Chen
  • Shanzhe Ke
Bulletin

Conclusion

The lake sediments have registered the information of palaeoclimate and palaeoenvironment in the lake itself and the regional scale. This also leads to a complexity in study of the palaeolimnology by all kinds of proxies. How to purify these proxies to indicate the palaeoclimate has become a problem to be solved. Most of the proxies can qualitively identify the percentage of allochthonous and autochthonous organic components, e.g. δ13corg CD/TC. The model introduced in this note has provided a method of quantitatively calculating the amount of allochthonous organic carbon. As for determination of regulating parameters, i.e. A1 and As, further work is still in need.

Keywords

lake sediment allochthonous organic carbon C/N 

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References

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Copyright information

© Science in China Press 1997

Authors and Affiliations

  • Junlong Qian
    • 1
  • Sumin Wang
    • 1
  • Bin Xue
    • 1
  • Rusong Chen
    • 2
  • Shanzhe Ke
    • 2
  1. 1.Nanjing Institute of Geography and LimnologyNanjingChina
  2. 2.Department of PhysicsNanjing UniversityNanjingChina

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