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Environmental Sciences Europe
Fig. 7 | Environmental Sciences Europe

Fig. 7

From: Hydrological and biogeochemical controls on temporal variations of dissolved carbon and solutes in a karst river, South China

Fig. 7

a Relationships between [HCO3−]/[Ca2+  + Mg2+] (in molar ratios) and δ13CDIC values; b DOC and DIC contents with variations in δ13CDIC values; c DIC contents and δ13CDIC values with variations in discharge; d mean monthly contributions of riverine DIC sources under different climatic conditions in the Guijiang River during the hydrological year

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