Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive

Craig, M.E.; Walker, A.P.

doi:10.25581/ornlsfa.022/1768048

Title: Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive

Abstract

This Modeling Archive is in support of a TES-SFA publication “Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns” (Craig et al., 2021). We ran and evaluated a multi-assumption soil organic carbon (SOC) model to investigate whether alternative assumptions regarding constraints on soil microbial biomass could lead to soil carbon saturation patterns. We developed this model in the Multi-Assumption Architecture and Testbed (MAAT, https://github.com/walkeranthonyp/MAAT, tag: v1.2.1_Craig2021). Using MAAT, we embedded three alternative hypotheses in a microbially explicit three-pool SOC model: 1) the efficiency of mineral-associated SOC formation decreases as mineral-associated SOC approaches a maximum value (“Mineral saturation”), 2) the microbial biomass turnover rate increases with increasing microbial biomass (“Density-dependent turnover”), and 3) community carbon use efficiency decreases as microbial biomass increases toward an upper limit (“Density-dependent growth”). We ran a factorial combination of these hypotheses resulting in eight models for three different classes of model (linear decay, Michaelis-Menten decay, or reverse Michaelis-Menten decay), resulting in 24 models, 12 of which are presented or discussed in the related publication. Further model details are available in the related publication. This archive contains output from three MAAT simulations, and scripts to run these simulations and process and plot the data. Simulations are labeledmore »« less

Authors:

;

Publication Date:: Fri Jan 01 00:00:00 EST 2021

DOE Contract Number:: AC05-00OR22725

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER). Earth and Environmental Systems Science Division

Subject:: 54 ENVIRONMENTAL SCIENCES

Keywords:: multi-assumption soil organic carbon model, MAAT, carbon use efficiency, Multi-Assumption Architecture and Testbed, soil microbial biomass

Geolocation:: 35.9311, -84.31

OSTI Identifier:: 1768048

DOI:: https://doi.org/10.25581/ornlsfa.022/1768048

Project Location:: Oak Ridge National Laboratory (ORNL)

Citation Formats


                    Craig, M.E., and Walker, A.P. Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive.  United States: N. p., 2021. 
        Web.  doi:10.25581/ornlsfa.022/1768048.

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                    Craig, M.E., & Walker, A.P. Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive.  United States.  doi:https://doi.org/10.25581/ornlsfa.022/1768048

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                    Craig, M.E., and Walker, A.P. 2021.  
"Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive".  United States.  doi:https://doi.org/10.25581/ornlsfa.022/1768048.  https://www.osti.gov/servlets/purl/1768048. Pub date:Fri Jan 01 00:00:00 EST 2021

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@article{osti_1768048,

  title        = {Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive},

  author       = {Craig, M.E. and Walker, A.P.},

  abstractNote = {This Modeling Archive is in support of a TES-SFA publication “Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns” (Craig et al., 2021). We ran and evaluated a multi-assumption soil organic carbon (SOC) model to investigate whether alternative assumptions regarding constraints on soil microbial biomass could lead to soil carbon saturation patterns. We developed this model in the Multi-Assumption Architecture and Testbed (MAAT, https://github.com/walkeranthonyp/MAAT, tag: v1.2.1_Craig2021). Using MAAT, we embedded three alternative hypotheses in a microbially explicit three-pool SOC model: 1) the efficiency of mineral-associated SOC formation decreases as mineral-associated SOC approaches a maximum value (“Mineral saturation”), 2) the microbial biomass turnover rate increases with increasing microbial biomass (“Density-dependent turnover”), and 3) community carbon use efficiency decreases as microbial biomass increases toward an upper limit (“Density-dependent growth”). We ran a factorial combination of these hypotheses resulting in eight models for three different classes of model (linear decay, Michaelis-Menten decay, or reverse Michaelis-Menten decay), resulting in 24 models, 12 of which are presented or discussed in the related publication. Further model details are available in the related publication. This archive contains output from three MAAT simulations, and scripts to run these simulations and process and plot the data. Simulations are labeled “lin”, “MM_highKm”, and “RMM_highKm” reflecting factorial runs for linear, Michealis-Menten, and reverse Michaelis-Menten models, respectively.},

  doi          = {10.25581/ornlsfa.022/1768048},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jan 01 00:00:00 EST 2021},

  month        = {Fri Jan 01 00:00:00 EST 2021}

}

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DOI: https://doi.org/10.25581/ornlsfa.022/1768048

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Works referenced in this record:

Organic-matter decomposition along a temperature gradient in a forested headwater stream
journal, June 2016

Griffiths, Natalie A.; Tiegs, Scott D.
Freshwater Science, Vol. 35, Issue 2
https://doi.org/10.1086/685657

Influence of dual nitrogen and phosphorus additions on nutrient uptake and saturation kinetics in a forested headwater stream
journal, December 2018

Griffiths, Natalie A.; Johnson, Laura T.
Freshwater Science, Vol. 37, Issue 4
https://doi.org/10.1086/700700

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Similar Records

Title: Biological Mechanisms May Contribute to Soil Carbon Saturation Patterns: Modeling Archive

Abstract

Citation Formats

Organic-matter decomposition along a temperature gradient in a forested headwater stream journal, June 2016

Influence of dual nitrogen and phosphorus additions on nutrient uptake and saturation kinetics in a forested headwater stream journal, December 2018

Organic-matter decomposition along a temperature gradient in a forested headwater stream
journal, June 2016

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journal, December 2018