Articles | Volume 14, issue 20
Biogeosciences, 14, 4781–4794, 2017
https://doi.org/10.5194/bg-14-4781-2017
Biogeosciences, 14, 4781–4794, 2017
https://doi.org/10.5194/bg-14-4781-2017
Research article
25 Oct 2017
Research article | 25 Oct 2017

CO2 efflux from soils with seasonal water repellency

Emilia Urbanek and Stefan H. Doerr

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Short summary
We studied CO2 emissions from soils that are seasonally water-epellent, and the wetting and water movement is restricted. When CO2 emissions are low soil is consistently water-repellent after a long dry spells, but when water repellency and thus soil moisture are patchy CO2 emission rates are high. The presence of water repellency may therefore increase rather than reduce soil CO2 emissions, which may result in higher soil carbon losses than it was previously anticipated.
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