A multi-model comparison of soil carbon assessment of a coniferous forest stand

Taru Palosuo, Bente Foereid, Magnus Svensson, Narasinha Shurpali, Aleksi Lehtonen, Michael Herbst, Tapio Linkosalo, Carina Ortiz, Gorana Rampazzo Todorovic, Saulius Marcinkonis, Changsheng Li, Robert Jandl

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We simulated soil carbon stock dynamics of an Austrian coniferous forest stand with five soil-only models (Q, ROMUL, RothC, SoilCO2/RothC and Yasso07) and three plant–soil models (CENTURY, CoupModel and Forest-DNDC) for an 18-year period and the decomposition of a litter pulse over a 100-year period. The objectives of the study were to assess the consistency in soil carbon estimates applying a multi-model comparison and to present and discuss the sources of uncertainties that create the differences in model results. Additionally, we discuss the applicability of different modelling approaches from the view point of large-scale carbon assessments. Our simulation results showed a wide range in soil carbon stocks and stock change estimates reflecting substantial uncertainties in model estimates. The measured stock change estimate decreased much more than the model predictions. Model results varied not only due to the model structure and applied parameters, but also due to different input information and assumptions applied during the modelling processes. Initialization procedures applied with the models induced large differences among the modelled soil carbon stocks and stock change estimates. Decomposition estimates of the litter pulse driven by model structures and parameters also varied considerably. Our results support the use of relatively simple soil-only models with low data requirements in inventory type of large-scale carbon assessments. It is important that the modelling processes within the national inventories are transparently reported and special emphasis is put on how the models are used, which assumptions are applied and what is the quality of data used both as input and to calibrate the models.
Original languageEnglish
Pages (from-to)38-49
Number of pages12
JournalEnvironmental Modelling & Software
Volume35
DOIs
Publication statusPublished - Jul 2012
Externally publishedYes

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coniferous forest
soil carbon
comparison
litter
decomposition
modeling
carbon
soil

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Palosuo, T., Foereid, B., Svensson, M., Shurpali, N., Lehtonen, A., Herbst, M., ... Jandl, R. (2012). A multi-model comparison of soil carbon assessment of a coniferous forest stand. Environmental Modelling & Software, 35, 38-49. https://doi.org/10.1016/j.envsoft.2012.02.004
Palosuo, Taru ; Foereid, Bente ; Svensson, Magnus ; Shurpali, Narasinha ; Lehtonen, Aleksi ; Herbst, Michael ; Linkosalo, Tapio ; Ortiz, Carina ; Rampazzo Todorovic, Gorana ; Marcinkonis, Saulius ; Li, Changsheng ; Jandl, Robert. / A multi-model comparison of soil carbon assessment of a coniferous forest stand. In: Environmental Modelling & Software. 2012 ; Vol. 35. pp. 38-49.
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author = "Taru Palosuo and Bente Foereid and Magnus Svensson and Narasinha Shurpali and Aleksi Lehtonen and Michael Herbst and Tapio Linkosalo and Carina Ortiz and {Rampazzo Todorovic}, Gorana and Saulius Marcinkonis and Changsheng Li and Robert Jandl",
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Palosuo, T, Foereid, B, Svensson, M, Shurpali, N, Lehtonen, A, Herbst, M, Linkosalo, T, Ortiz, C, Rampazzo Todorovic, G, Marcinkonis, S, Li, C & Jandl, R 2012, 'A multi-model comparison of soil carbon assessment of a coniferous forest stand', Environmental Modelling & Software, vol. 35, pp. 38-49. https://doi.org/10.1016/j.envsoft.2012.02.004

A multi-model comparison of soil carbon assessment of a coniferous forest stand. / Palosuo, Taru; Foereid, Bente; Svensson, Magnus; Shurpali, Narasinha; Lehtonen, Aleksi; Herbst, Michael; Linkosalo, Tapio; Ortiz, Carina; Rampazzo Todorovic, Gorana; Marcinkonis, Saulius; Li, Changsheng; Jandl, Robert.

In: Environmental Modelling & Software, Vol. 35, 07.2012, p. 38-49.

Research output: Contribution to journalArticle

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T1 - A multi-model comparison of soil carbon assessment of a coniferous forest stand

AU - Palosuo, Taru

AU - Foereid, Bente

AU - Svensson, Magnus

AU - Shurpali, Narasinha

AU - Lehtonen, Aleksi

AU - Herbst, Michael

AU - Linkosalo, Tapio

AU - Ortiz, Carina

AU - Rampazzo Todorovic, Gorana

AU - Marcinkonis, Saulius

AU - Li, Changsheng

AU - Jandl, Robert

PY - 2012/7

Y1 - 2012/7

N2 - We simulated soil carbon stock dynamics of an Austrian coniferous forest stand with five soil-only models (Q, ROMUL, RothC, SoilCO2/RothC and Yasso07) and three plant–soil models (CENTURY, CoupModel and Forest-DNDC) for an 18-year period and the decomposition of a litter pulse over a 100-year period. The objectives of the study were to assess the consistency in soil carbon estimates applying a multi-model comparison and to present and discuss the sources of uncertainties that create the differences in model results. Additionally, we discuss the applicability of different modelling approaches from the view point of large-scale carbon assessments. Our simulation results showed a wide range in soil carbon stocks and stock change estimates reflecting substantial uncertainties in model estimates. The measured stock change estimate decreased much more than the model predictions. Model results varied not only due to the model structure and applied parameters, but also due to different input information and assumptions applied during the modelling processes. Initialization procedures applied with the models induced large differences among the modelled soil carbon stocks and stock change estimates. Decomposition estimates of the litter pulse driven by model structures and parameters also varied considerably. Our results support the use of relatively simple soil-only models with low data requirements in inventory type of large-scale carbon assessments. It is important that the modelling processes within the national inventories are transparently reported and special emphasis is put on how the models are used, which assumptions are applied and what is the quality of data used both as input and to calibrate the models.

AB - We simulated soil carbon stock dynamics of an Austrian coniferous forest stand with five soil-only models (Q, ROMUL, RothC, SoilCO2/RothC and Yasso07) and three plant–soil models (CENTURY, CoupModel and Forest-DNDC) for an 18-year period and the decomposition of a litter pulse over a 100-year period. The objectives of the study were to assess the consistency in soil carbon estimates applying a multi-model comparison and to present and discuss the sources of uncertainties that create the differences in model results. Additionally, we discuss the applicability of different modelling approaches from the view point of large-scale carbon assessments. Our simulation results showed a wide range in soil carbon stocks and stock change estimates reflecting substantial uncertainties in model estimates. The measured stock change estimate decreased much more than the model predictions. Model results varied not only due to the model structure and applied parameters, but also due to different input information and assumptions applied during the modelling processes. Initialization procedures applied with the models induced large differences among the modelled soil carbon stocks and stock change estimates. Decomposition estimates of the litter pulse driven by model structures and parameters also varied considerably. Our results support the use of relatively simple soil-only models with low data requirements in inventory type of large-scale carbon assessments. It is important that the modelling processes within the national inventories are transparently reported and special emphasis is put on how the models are used, which assumptions are applied and what is the quality of data used both as input and to calibrate the models.

U2 - 10.1016/j.envsoft.2012.02.004

DO - 10.1016/j.envsoft.2012.02.004

M3 - Article

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SP - 38

EP - 49

JO - Environmental Modelling and Software

JF - Environmental Modelling and Software

SN - 1364-8152

ER -