Articles | Volume 18, issue 18
https://doi.org/10.5194/bg-18-5035-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5035-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Sep 2021
Research article |
| 15 Sep 2021
| 15 Sep 2021
Effect of organic carbon addition on paddy soil organic carbon decomposition under different irrigation regimes
Department of Environment, Ghent University, Ghent, Belgium
Isotope Bioscience laboratory, Department of Green Chemistry and
Technology, Ghent University, Ghent, Belgium
Masuda Akter
Soil Science Division, Bangladesh Rice Research Institute, Gazipur,
Bangladesh
Samuel Bodé
Isotope Bioscience laboratory, Department of Green Chemistry and
Technology, Ghent University, Ghent, Belgium
Orly Mendoza
Department of Environment, Ghent University, Ghent, Belgium
Haichao Li
Department of Environment, Ghent University, Ghent, Belgium
Pascal Boeckx
Isotope Bioscience laboratory, Department of Green Chemistry and
Technology, Ghent University, Ghent, Belgium
Steven Sleutel
Department of Environment, Ghent University, Ghent, Belgium
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Short summary
We assessed if and how incorporation of exogenous organic carbon (OC) such as straw could affect decomposition of native soil organic carbon (SOC) under different irrigation regimes. Addition of exogenous OC promoted dissolution of native SOC, partly because of increased Fe reduction, leading to more net release of Fe-bound SOC. Yet, there was no proportionate priming of SOC-derived DOC mineralisation. Water-saving irrigation can retard both priming of SOC dissolution and mineralisation.
We assessed if and how incorporation of exogenous organic carbon (OC) such as straw could affect...
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