Articles | Volume 11, issue 22
Biogeosciences, 11, 6251–6262, 2014
Biogeosciences, 11, 6251–6262, 2014

Research article 17 Nov 2014

Research article | 17 Nov 2014

A downward CO2 flux seems to have nowhere to go

J. Ma et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jie Ma on behalf of the Authors (08 Oct 2014)  Author's response    Manuscript
ED: Publish as is (09 Oct 2014) by Peter van Bodegom
Short summary
We have discovered and verified a new CO2 sink in one of the most unlikely places on earth-a saline desert located in a desert-oasis ecotone. The observed downward CO2 flux was not found in either plants or soil, but in groundwater. Fluctuation of the groundwater table moves the dissolved inorganic carbon in soil, which originated from soil/root respiration, downward into the groundwater body and forms a carbon sink hidden under the desert.
Final-revised paper