Correction: Sources and Dynamics of Inorganic Carbon within the Upper Reaches of the Xi River Basin, Southwest China.

[This corrects the article DOI: 10.1371/journal.pone.0160964.].

There is an error in the second sentence of the Abstract. The correct sentence is: Carbonate dissolution and soil CO2 were regarded as the primary sources of DIC on the basis of δ13CDIC values which varied along the Nanpan and Beipan Rivers, from −13.9‰ to −8.1‰.

There is an error in the sixth sentence of the Conclusions section: The correct sentence is: In addition, the involvement of sulfuric acid from coal related industries had a significant impact on the carbon evolution along the Beipan River.

Fig 3 appears incorrectly in the published article. Please see the correct Fig 3 and its caption below. Fig 3 is incorrect. The authors have provided a corrected version here.

Fig 3

Correlation between DIC content and δ13CDIC.

The trend line applies to data from the BPJ.