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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 12
Biogeosciences, 13, 3687–3699, 2016
https://doi.org/10.5194/bg-13-3687-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 3687–3699, 2016
https://doi.org/10.5194/bg-13-3687-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 23 Jun 2016

Research article | 23 Jun 2016

Source and flux of POC in a karstic area in the Changjiang River watershed: impacts of reservoirs and extreme drought

Hongbing Ji et al.

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Source and flux of POC in a karstic area in the Changjiang River watershed: impacts of reservoirs and extreme drought H. Ji, C. Li, H. Ding and Y. Gao https://doi.org/10.5194/bg-2015-655

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The mineral composition, C / N ratios as well as 13C and 15N, of POC was firstly analyzed in suspended and surface sediments in the Wujiang River after the Three Gorges Dam began impounding sediment in 2004. A comparison of POC yield was made between karstic rivers and non-karstic rivers to evaluate the influence of carbonate distribution on POC transport. Considering the cascade reservoir and climate in the Wujiang River, the impacts of reservoirs and extreme drought were estimated in this study.
The mineral composition, C / N ratios as well as 13C and 15N, of POC was firstly analyzed in...
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