Articles | Volume 20, issue 18
https://doi.org/10.5194/bg-20-3895-2023
https://doi.org/10.5194/bg-20-3895-2023
Research article
 | 
27 Sep 2023
Research article |  | 27 Sep 2023

Modeling coupled nitrification–denitrification in soil with an organic hotspot

Jie Zhang, Elisabeth Larsen Kolstad, Wenxin Zhang, Iris Vogeler, and Søren O. Petersen

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Cited articles

Abeling, U. and Seyfried, C. F.: Anaerobic-aerobic treatment of high-strength ammonium wastewater – nitrogen removal via nitrite, Water Sci. Technol., 26, 1007–1015, https://doi.org/10.2166/wst.1992.0542, 1992. 
Barbarika, A., Sikora, L. J., and Colacicco, D.: Factors affecting the mineralization of nitrogen in sewage sludge applied to soils, Soil Sci. Soc. Am. J., 49, 1403–1406, https://doi.org/10.2136/sssaj1985.03615995004900060014x, 1985. 
Butterbach-Bahl, K., Baggs, E. M., Dannenmann, M., Kiese, R., and Zechmeister-Boltenstern, S.: Nitrous oxide emissions from soils: how well do we understand the processes and their controls?, Philos. T. Roy. Soc. B, 368, 20130122, https://doi.org/10.1098/rstb.2013.0122, 2013. 
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Manure application to agricultural land often results in large and variable N2O emissions. We propose a model with a parsimonious structure to investigate N transformations around such N2O hotspots. The model allows for new detailed insights into the interactions between transport and microbial activities regarding N2O emissions in heterogeneous soil environments. It highlights the importance of solute diffusion to N2O emissions from such hotspots which are often ignored by process-based models.
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