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Calibrating SoilGen2 for interglacial soil evolution in the Chinese Loess Plateau considering soil parameters and the effect of dust addition rhythm

(2022) QUATERNARY INTERNATIONAL. 607. p.100-112
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Abstract
To better understand interglacial paleosol development by quantifying the paleosol development processes on the Chinese Loess Plateau (CLP), we need a soil genesis model calibrated for long timescales. Here, we calibrate a process-based soil genesis model, SoilGen2, by confronting simulated and measured soil properties for the Holocene and MIS-13 paleosols formed in the CLP for various parameter settings. The calibration was made sequentially on three major soil process formulations, including decalcification, clay migration and soil organic carbon, which are represented by various process parameters. The order of the tuned parameters was based on sensitivity analyses performed previously on the loess in West European and the CLP. After the calibration of the intrinsic soil process parameters, the effect of uncertainty of dust deposition rate on calibration results was assessed. Our results show that the simulated soil properties are very sensitive to ten reconstructed dust deposition scenarios, reflecting the propagation of uncertainty of dust deposition in model simulations. Our results also show the equal importance of calibrating soil process parameters and defining correct external forcings in the future use of soil models. Our calibrated model allows interglacial soil simulation in the CLP over long timescales.
Keywords
Earth-Surface Processes, SoilGen2 calibration, Soil parameters, Uncertainty, Dust deposition, RAINFALL INTERCEPTION, VEGETATION RESTORATION, WATER-BALANCE, CARBON MODEL, FOREST, EVERGREEN, HOLOCENE, CLAY, EVAPOTRANSPIRATION, PEDOGENESIS

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MLA
Ranathunga, Keerthika Nirmani, et al. “Calibrating SoilGen2 for Interglacial Soil Evolution in the Chinese Loess Plateau Considering Soil Parameters and the Effect of Dust Addition Rhythm.” QUATERNARY INTERNATIONAL, vol. 607, 2022, pp. 100–12, doi:10.1016/j.quaint.2021.08.019.
APA
Ranathunga, K. N., Finke, P., Yin, Q., & Yu, Y. (2022). Calibrating SoilGen2 for interglacial soil evolution in the Chinese Loess Plateau considering soil parameters and the effect of dust addition rhythm. QUATERNARY INTERNATIONAL, 607, 100–112. https://doi.org/10.1016/j.quaint.2021.08.019
Chicago author-date
Ranathunga, Keerthika Nirmani, Peter Finke, Qiuzhen Yin, and Yanyan Yu. 2022. “Calibrating SoilGen2 for Interglacial Soil Evolution in the Chinese Loess Plateau Considering Soil Parameters and the Effect of Dust Addition Rhythm.” QUATERNARY INTERNATIONAL 607: 100–112. https://doi.org/10.1016/j.quaint.2021.08.019.
Chicago author-date (all authors)
Ranathunga, Keerthika Nirmani, Peter Finke, Qiuzhen Yin, and Yanyan Yu. 2022. “Calibrating SoilGen2 for Interglacial Soil Evolution in the Chinese Loess Plateau Considering Soil Parameters and the Effect of Dust Addition Rhythm.” QUATERNARY INTERNATIONAL 607: 100–112. doi:10.1016/j.quaint.2021.08.019.
Vancouver
1.
Ranathunga KN, Finke P, Yin Q, Yu Y. Calibrating SoilGen2 for interglacial soil evolution in the Chinese Loess Plateau considering soil parameters and the effect of dust addition rhythm. QUATERNARY INTERNATIONAL. 2022;607:100–12.
IEEE
[1]
K. N. Ranathunga, P. Finke, Q. Yin, and Y. Yu, “Calibrating SoilGen2 for interglacial soil evolution in the Chinese Loess Plateau considering soil parameters and the effect of dust addition rhythm,” QUATERNARY INTERNATIONAL, vol. 607, pp. 100–112, 2022.
@article{8719397,
  abstract     = {{To better understand interglacial paleosol development by quantifying the paleosol development processes on the Chinese Loess Plateau (CLP), we need a soil genesis model calibrated for long timescales. Here, we calibrate a process-based soil genesis model, SoilGen2, by confronting simulated and measured soil properties for the Holocene and MIS-13 paleosols formed in the CLP for various parameter settings. The calibration was made sequentially on three major soil process formulations, including decalcification, clay migration and soil organic carbon, which are represented by various process parameters. The order of the tuned parameters was based on sensitivity analyses performed previously on the loess in West European and the CLP. After the calibration of the intrinsic soil process parameters, the effect of uncertainty of dust deposition rate on calibration results was assessed. Our results show that the simulated soil properties are very sensitive to ten reconstructed dust deposition scenarios, reflecting the propagation of uncertainty of dust deposition in model simulations. Our results also show the equal importance of calibrating soil process parameters and defining correct external forcings in the future use of soil models. Our calibrated model allows interglacial soil simulation in the CLP over long timescales.}},
  author       = {{Ranathunga, Keerthika Nirmani and Finke, Peter and Yin, Qiuzhen and Yu, Yanyan}},
  issn         = {{1040-6182}},
  journal      = {{QUATERNARY INTERNATIONAL}},
  keywords     = {{Earth-Surface Processes,SoilGen2 calibration,Soil parameters,Uncertainty,Dust deposition,RAINFALL INTERCEPTION,VEGETATION RESTORATION,WATER-BALANCE,CARBON MODEL,FOREST,EVERGREEN,HOLOCENE,CLAY,EVAPOTRANSPIRATION,PEDOGENESIS}},
  language     = {{eng}},
  pages        = {{100--112}},
  title        = {{Calibrating SoilGen2 for interglacial soil evolution in the Chinese Loess Plateau considering soil parameters and the effect of dust addition rhythm}},
  url          = {{http://dx.doi.org/10.1016/j.quaint.2021.08.019}},
  volume       = {{607}},
  year         = {{2022}},
}

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