Articles | Volume 23, issue 21
https://doi.org/10.5194/bg-23-8275-2026
https://doi.org/10.5194/bg-23-8275-2026
Research article
 | 
13 Nov 2026
Research article |  | 13 Nov 2026

Spatial modelling of available aluminum in glacial till: informing a boreal forest soil carbon predictor

Scout M. Quinn, Benjamin Misiuk, Mackenzie E. Patrick, and Susan E. Ziegler

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Cited articles

Adhikari, K., Mishra, U., Owens, P. R., Libohova, Z., Wills, S. A., Riley, W. J., Hoffman, F. M., and Smith, D. R.: Importance and strength of environmental controllers of soil organic carbon changes with scale, Geoderma, 375, 114472, https://doi.org/10.1016/j.geoderma.2020.114472, 2020. 
Ameray, A., Bergeron, Y., Valeria, O., Girona, M., and Cavard, X.: Forest Carbon Management: a Review of Silvicultural Practices and Management Strategies Across Boreal, Temperate and Tropical Forests, Curr. Forestry Rep., 7, 245–266, https://doi.org/10.1007/s40725-021-00151-w, 2021. 
Babechuk, M. G. and Fedo, C. M.: Analysis of chemical weathering trends across three compositional dimensions; applications to modern and ancient mafic-rock weathering profiles, Can. J. Earth. Sci., 60, https://doi.org/10.1139/cjes-2022-0053, 2023. 
Babechuk, M. G., Widdowson, M., and Kamber, B. S.: Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India, Chem. Geol., 363, 56–75, https://doi.org/10.1016/j.chemgeo.2013.10.027, 2014. 
Baldock, J. A. and Skjemstad, J. O.: Role of the soil matrix and minerals in protecting natural organic materials against biological attack, Org. Geochem., 31, 697–710, https://doi.org/10.1016/S0146-6380(00)00049-8, 2000. 
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Short summary
Boreal forest soils store approximately one third of forest soil carbon globally. Stabilization of organic carbon in these soils is largely controlled by reactive aluminum content derived from parent material, which in boreal regions is typically glacial till. We used a Random Forest approach to predictively map and model reactive aluminum and its uncertainty in glacial till across Newfoundland. This supports future modelling efforts and estimates of the soil carbon reservoir in boreal forests.
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