Articles | Volume 18, issue 18
https://doi.org/10.5194/bg-18-5035-2021
https://doi.org/10.5194/bg-18-5035-2021
Research article
 | 
15 Sep 2021
Research article |  | 15 Sep 2021

Effect of organic carbon addition on paddy soil organic carbon decomposition under different irrigation regimes

Heleen Deroo, Masuda Akter, Samuel Bodé, Orly Mendoza, Haichao Li, Pascal Boeckx, and Steven Sleutel

Related authors

Soil organic carbon mineralization is controlled by the application dose of exogenous organic matter
Orly Mendoza, Stefaan De Neve, Heleen Deroo, Haichao Li, Astrid Françoys, and Steven Sleutel
SOIL, 11, 105–119, https://doi.org/10.5194/soil-11-105-2025,https://doi.org/10.5194/soil-11-105-2025, 2025
Short summary

Related subject area

Biogeochemistry: Soils
Exploring microscale heterogeneity as a driver of biogeochemical transformations and gas transport in peat
Lukas Kohl, Petri Kiuru, Marjo Palviainen, Maarit Raivonen, Markku Koskinen, Mari Pihlatie, and Annamari Laurén
Biogeosciences, 22, 1711–1727, https://doi.org/10.5194/bg-22-1711-2025,https://doi.org/10.5194/bg-22-1711-2025, 2025
Short summary
Dissolved organic matter fosters core mercury-methylating microbiomes for methylmercury production in paddy soils
Qiang Pu, Bo Meng, Jen-How Huang, Kun Zhang, Jiang Liu, Yurong Liu, Mahmoud A. Abdelhafiz, and Xinbin Feng
Biogeosciences, 22, 1543–1556, https://doi.org/10.5194/bg-22-1543-2025,https://doi.org/10.5194/bg-22-1543-2025, 2025
Short summary
A microbially driven and depth-explicit soil organic carbon model constrained by carbon isotopes to reduce parameter equifinality
Marijn Van de Broek, Gerard Govers, Marion Schrumpf, and Johan Six
Biogeosciences, 22, 1427–1446, https://doi.org/10.5194/bg-22-1427-2025,https://doi.org/10.5194/bg-22-1427-2025, 2025
Short summary
Earth observation reveals reduced winter wheat growth and the importance of plant available water during drought
Hanna Sjulgård, Lukas Valentin Graf, Tino Colombi, Juliane Hirte, Thomas Keller, and Helge Aasen
Biogeosciences, 22, 1341–1354, https://doi.org/10.5194/bg-22-1341-2025,https://doi.org/10.5194/bg-22-1341-2025, 2025
Short summary
Plutonium concentrations link soil organic matter decline to wind erosion in ploughed soils of South Africa
Joel Mohren, Hendrik Wiesel, Wulf Amelung, L. Keith Fifield, Alexandra Sandhage-Hofmann, Erik Strub, Steven A. Binnie, Stefan Heinze, Elmarie Kotze, Chris Du Preez, Stephen G. Tims, and Tibor J. Dunai
Biogeosciences, 22, 1077–1094, https://doi.org/10.5194/bg-22-1077-2025,https://doi.org/10.5194/bg-22-1077-2025, 2025
Short summary

Cited articles

Akter, M., Deroo, H., De Grave, E., Van Alboom, T., Kader, M. A., Pierreux, S., Begum, M. A., Boeckx, P., and Sleutel, S.: Link between paddy soil mineral nitrogen release and iron and manganese reduction examined in a rice pot growth experiment, Geoderma, 326, 9–21, https://doi.org/10.1016/j.geoderma.2018.04.002, 2018. 
Bertora, C., Cucu, M. A., Lerda, C., Peyron, M., Bardi, L., Gorra, R., Sacco, D., Celi, L., and Said-Pullicino, D.: Dissolved organic carbon cycling, methane emissions and related microbial populations in temperate rice paddies with contrasting straw and water management, Agr. Ecosyst. Environ., 265, 292–306, https://doi.org/10.1016/j.agee.2018.06.004, 2018. 
Blagodatskaya, Å. and Kuzyakov, Y.: Mechanisms of real and apparent priming effects and their dependence on soil microbial biomass and community structure: critical review, Biol. Fert. Soils, 45, 115–131, 2008. 
Carrijo, D. R., Lundy, M. E., and Linquist, B. A.: Rice yields and water use under alternate wetting and drying irrigation: A meta-analysis, Field Crop Res, 203, 173–180, https://doi.org/10.1016/j.fcr.2016.12.002, 2017. 
Chao, T. and Zhou, L.: Extraction techniques for selective dissolution of amorphous iron oxides from soils and sediments, Soil Sci. Soc. Am. J., 47, 225–232, 1983. 
Download
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.
Share
Altmetrics
Final-revised paper
Preprint