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Volume 30 Issue 4
Dec.  2011
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Article Navigation >  CARSOLOGICA SINICA  > 2011  >  30(4): 417-421
HUang Fen, Tang Wei, Wang Jin-liang, Cao Jian-hua, Yin Jian-jun. The influence of allogenic water on karst carbon sink：A case study in the Maocun Subterranean River in Guilin, China[J]. CARSOLOGICA SINICA, 2011, 30(4): 417-421. doi: 10.3969/j.issn.1001-4810.2011.04.011
Citation: HUang Fen, Tang Wei, Wang Jin-liang, Cao Jian-hua, Yin Jian-jun. The influence of allogenic water on karst carbon sink：A case study in the Maocun Subterranean River in Guilin, China[J]. CARSOLOGICA SINICA, 2011, 30(4): 417-421. doi: 10.3969/j.issn.1001-4810.2011.04.011
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The influence of allogenic water on karst carbon sink：A case study in the Maocun Subterranean River in Guilin, China

doi: 10.3969/j.issn.1001-4810.2011.04.011
  • 1.

    Institute of Karst Geology, CAGS / Karst Dynamics Laboratory, MLR & GZAR / International Research Centre on Karst, under the Auspices of UNESCO

  • 2.

    Institute of Karst Geology, CAGS / Karst Dynamics Laboratory, MLR & GZAR / International Research Centre on Karst, under the Auspices of UNESCO；School of Geographical Sciences, Southwest University

  • Received Date: 2011-04-23
  • Publish Date: 2011-12-25
    Abstract
  • Based on the field monitoring and theoretical calculation, this research studied the influence of allogenic water on karst carbon sink flux in the Maocun Subterranean Stream in Guilin. The results showed that (1) entered into karst area, allogenic water mixed with autogenic water, which enhanced karst water corrosion, increased DIC concentration and carbonate saturation index gradually, changed SIc from unsaturated into saturated and increased the karst carbon sink flux; (2)during September 7, 2010 to March 26, 2011, the carbon sink flux increased about 10 times (from 2.28×105g to 2.04×106g ), calculated only with the allogenic water recharge of Xiao Long Bei in the upstream and the HCO3- concentration of outlet water of underground river; (3) the increase of carbon sink flux have some connection with potential CO2 input due to precipitation, vegetation and land-use types on the way, but have more to do with mixture corrosion of allogenic water. So, allogenic water takes an obvious contribution to karst carbon sink, and can’t be ignored in calculation of karst carbon sink.

     

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