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Cited by 15Soil Carbon and Nitrogen DynamicsSoil erosion and sediment transportSoil Geostatistics and Mapping

Comparison of two quantitative soil organic carbon models with a conceptual model using data from an agricultural long‐term experiment

Ludwig, Bernard, Kuka, Katrin, Franko, Uwe, von Lützow, Margit·2008·Journal of Plant Nutrition and Soil Science
DOI 10.1002/jpln.200700053
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Abstract

Quantitative soil organic carbon (SOC) models are required for a better understanding of C sequestration in soils and for prognoses at different scenarios. However, it is unclear whether the major C‐stabilization mechanisms are included adequately. Objectives were (1) to test the performance of the CIPS (Carbon turnover In Pore Space) model and the Rothamsted Carbon (RothC) Model for a prediction of the SOC dynamics at the long‐term experiments at Halle (Germany) and (2) to compare the model structures of the quantitative models and a conceptual model in order to identify shortcomings of the quantitative models. Both quantitative models had a similar prediction performance: the C dynamics was predicted satisfactorily for the Halle sites under continuous rye with NPK fertilization or without any fertilization (1878–1953), but larger deviations between modeled and measured C contents were observed for the continuous rye and maize in the entire period from 1878 to 1996. The comparison of the conceptual model with the quantitative models revealed that the neglect of the black C dynamics and the interactions of SOC with mineral surfaces are not included explicitly. Site‐specific calibrations are required where these processes have a significant impact on soil organic matter dynamics. Furthermore, the number of pools and mechanisms in the conceptual model is higher than in the quantitative models independent of their level of abstraction. Despite the neglect of some important mechanisms in the quantitative models, it has to be noted that they reproduce the SOC data generally well in agricultural surface soils. Moreover, they need only few inputs which are generally easily obtainable.

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  • Recalcitrance can be modelled using a delay time of decomposition depending on accessible soil pore space, simulating physical protection from microbial activity.

    “Recalcitrance can also be modelled using a delay time of decomposition in dependence of accessible soil pore space, which simulate the physical protective effect of soil from microbial activity [176].”

    From Carbon Sequestration by Perennial Energy Crops: Is the Jury Still Out? (2015) · cites this paper as [176]

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Authors
Ludwig, B., Kuka, K., Franko, U., & von Lützow, M.
Affiliations
  • University of Kassel (DE)
  • Helmholtz Centre for Environmental Research (DE)
ORCID
Venue
Journal of Plant Nutrition and Soil Science
Publisher
Wiley
Published
2008-01-31
Volume
171
Issue
1
Pages
83-90
ISSN
  • 1436-8730 (ISSN-L)
  • 1522-2624
DOI
10.1002/jpln.200700053
OpenAlex
W1986026264
Cited by
15
References
28
Citations by year
2025: 1 · 2020: 1 · 2015: 2 · 2014: 1 · 2012: 1
FWCI
4.57
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
Journal of Plant Nutrition and Soil Science (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
  • Physical Sciences › Environmental Science › Environmental Engineering › Soil Geostatistics and Mapping
Keywords
RothC model, soil organic carbon dynamics, carbon sequestration, soil carbon stabilization, black carbon, soil organic matter, long-term agricultural experiments, model calibration, soil carbon pools, maize, NPK fertilization

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