Cited by 469Soil Carbon and Nitrogen DynamicsSoil Geostatistics and MappingSoil erosion and sediment transport

Measured soil organic matter fractions can be related to pools in the RothC model

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Zimmermann, M., Leifeld, J., Schmidt, M. W. I., Smith, P., Fuhrer, J.·2007·European Journal of Soil Science

Abstract

Summary: Understanding the response of soil organic carbon (SOC) to environmental and management factors is necessary for estimating the potential of soils to sequester atmospheric carbon. Changes over time in the amount and distribution of SOC fractions with different turnover rates can be estimated by means of soil SOC models such as RothC, which typically consider two to five SOC pools. Ideally, these pools should correspond to measurable SOC fractions. The aim of this study was to test the relationship between SOC pools used in RothC and fractions separated through a fractionation procedure. A total of 123 topsoil samples from agricultural sites (arable land, grassland and alpine pasture) across Switzerland were used. A combination of physical and chemical methods resulted in two sensitive (particulate organic matter and dissolved organic carbon), two slow (carbon associated to clay and silt or stabilized in aggregates) and one passive (oxidation‐resistant carbon) SOM fractions. These fractions were compared with the estimated equilibrium model pools when the corresponding soils were modelled with RothC. Analysis revealed strong correlations between SOC in measured fractions and modelled pools. Spearman’s rank correlation coefficients varied between 0.82 for decomposable plant materials (DPM), 0.76 for resistant plant materials (RPM), 0.99 for humified organic matter (HUM) and biomass (BIO), and 0.73 for inert organic matter (IOM). The results show that the proposed fractionation procedure can be used with minor adaptations to identify measurable SOC fractions, which can be used to initialize and evaluate RothC for a wide range of site conditions.

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Crossref · 10.1111/j.1365-2389.2006.00855.x

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21 of 21 references verified0 citation errors · 0 not checkable

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  • Belowground biomass has a greater effect on soil organic carbon than litter inputs, possibly due to delayed incorporation of litter.

    “Zimmermann et al. [141] also showed that BGB has a greater effect on SOC than litter inputs, possibly due to delayed incorporation of the latter.”
  • Carbon inputs originate from and feed into pools of different stability, and initially carbon is stored as particulate organic matter, which is a relatively slow soil organic carbon pool under switchgrass.

    “C inputs originate from and feed into pools of different stability [45, 141], and initially, C is stored as particulate organic matter (POM) [139], which is a relatively slow SOC pool under switchgrass [25, 47].”
  • Chemical or physical identification of specific pools with defined decomposition rates is very difficult.

    “First, chemical or physical identification of specific pools with defined decomposition rates is very difficult [141, 163].”
  • Dondini et al. applied a soil fractionation technique to improve calibration of SOC pools and account for the recalcitrant nature of plant residues.

    “Dondini et al. [45] applied a soil fractionation technique [141] to improve the calibration of SOC pools and to account for the recalcitrant nature of plant residues.”

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Authors
Zimmermann, M., Leifeld, J., Schmidt, M. W. I., Smith, P., & Fuhrer, J.
Affiliations
University of Aberdeen (GB)
Corresponding author
Zimmermann, M.
Venue
European Journal of Soil Science
Publisher
Wiley
Published
2006-08-14
Volume
58
Issue
3
Pages
658-667
ISSN
  • 1351-0754 (ISSN-L)
  • 1365-2389
OpenAlex
W2034745711
Cited by
469
References
21
Citations by year
2026: 19 · 2025: 23 · 2024: 34 · 2023: 38 · 2022: 43 · 2021: 29 · 2020: 22 · 2019: 24 · 2018: 27 · 2017: 33 · 2016: 19 · 2015: 19 · 2014: 24 · 2013: 29 · 2012: 11
FWCI
17.83
Type
journal article
Language
en
Open access
Locations
  • European Journal of Soil Science (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion)
  • ResearchOnline - JCU (James Cook University) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
  • European Science Foundation
  • University of Aberdeen
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Environmental Engineering › Soil Geostatistics and Mapping
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
soil organic carbon, soil organic matter fractions, RothC model, organic matter fractionation, particulate organic matter, dissolved organic carbon, humified organic matter, carbon sequestration, topsoil, arable land, grassland, alpine pastures, model initialization

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