Articles | Volume 11, issue 1
https://doi.org/10.5194/soil-11-17-2025
https://doi.org/10.5194/soil-11-17-2025
Original research article
 | 
08 Jan 2025
Original research article |  | 08 Jan 2025

Large errors in soil carbon measurements attributed to inconsistent sample processing

Rebecca J. Even, Megan B. Machmuller, Jocelyn M. Lavallee, Tamara J. Zelikova, and M. Francesca Cotrufo

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Cited articles

Amooh, M. and Bonsu, M.: Effects of Soil Texture and Organic Matter on Evaporative Loss of Soil Moisture, Journal of Global Agriculture and Ecology, 3, 152–161, 2015. 
Apesteguia, M., Plante, A. F., and Virto, I.: Methods assessment for organic and inorganic carbon quantification in calcareous soils of the Mediterranean region, Geoderma Regional, 12, 39–48, https://doi.org/10.1016/j.geodrs.2017.12.001, 2018. 
Arnold, S. L. and Schepers, J. S.: A Simple Roller-Mill Grinding Procedure for Plant and Soil Samples, Commun. Soil Sci. Plan., 35, 537–545, https://doi.org/10.1081/CSS-120029730, 2004. 
Arshad, M. A., Lowery, B., and Grossman, B.: Physical Tests for Monitoring Soil Quality, in: Methods for Assessing Soil Quality, John Wiley & Sons, Ltd, 123–141, https://doi.org/10.2136/sssaspecpub49.c7, 1997. 
Bai, Y. and Cotrufo, M. F.: Grassland soil carbon sequestration: Current understanding, challenges, and solutions, Science, 377, 603–608, https://doi.org/10.1126/science.abo2380, 2022. 
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Short summary
We conducted a service soil laboratory comparison study and tested the individual effect of common sieving, grinding, drying, and quantification methods on total, inorganic, and organic soil carbon (C) measurements. We found that inter-lab variability is large and each soil processing step impacts C measurement accuracy and/or precision. Standardizing soil processing methods is needed to ensure C measurements are accurate and precise, especially for C credit allocation and model calibration.
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