Articles | Volume 17, issue 6
https://doi.org/10.5194/essd-17-2873-2025
https://doi.org/10.5194/essd-17-2873-2025
Data description paper
 | 
25 Jun 2025
Data description paper |  | 25 Jun 2025

Global patterns and drivers of soil dissolved organic carbon concentrations

Tianjing Ren and Andong Cai

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Cited articles

Andersson, S., and Nilsson, S. I.: Influence of pH and temperature on microbial activity, substrate availability of soil-solution bacteria and leaching of dissolved organic carbon in a mor humus, Soil Biol. Biochem., 33, 1181–1191, https://doi.org/10.1016/S0038-0717(01)00022-0, 2001. 
Angst, G., Pokorn, J., Mueller, C. W., Prater, I., Preusser, S., Kandeler, E., Meador, T., Straková, P., Hájek, T., and Buiten, G. V.: Soil texture affects the coupling of litter decomposition and soil organic matter formation, Soil Biol. Biochem., 159, 108302, https://doi.org/10.1016/j.soilbio.2021.108302, 2021. 
Awedat, A. M., Zhu, Y., Bennett, J. M., and Raine, S. R.: The impact of clay dispersion and migration on soil hydraulic conductivity and pore networks, Geoderma, 404, 115297, https://doi.org/10.1016/j.geoderma.2021.115297, 2021. 
Camino-Serrano, M., Gielen, B., Luyssaert, S., Ciais, P., Vicca, S., Guenet, B., Vos, B. D., Cools, N., Ahrens, B., Altaf Arain, M., Borken, W., Clarke, N., Clarkson, B., Cummins, T., Don, A., Pannatier, E. G., Laudon, H., Moore, T., Nieminen, T. M., and Janssens, I.: Linking variability in soil solution dissolved organic carbon to climate, soil type, and vegetation type, Global Biogeochem. Cy., 28, 497–509, https://doi.org/10.1002/2013gb004726, 2014. 
Cotrufo, M. F. and Lavallee, J. M.: Soil organic matter formation, persistence, and functioning: A synthesis of current understanding to inform its conservation and regeneration, Adv. Agron., 172, 1–66, https://doi.org/10.1016/bs.agron.2021.11.002, 2022. 
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This study compiles a global database of soil dissolved organic carbon (DOC) concentrations, a key factor in soil health and climate change. Using machine learning, it identifies the most influential factors affecting soil DOC levels and maps global DOC patterns. The findings help guide soil management and climate strategies, with the dataset available for further research.
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