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Session Proposal: Multiscale Microbial Drivers of Soil Biogeochemistry: Theory, Data, and Models (AGU25)

B065
Multiscale Microbial Drivers of Soil Biogeochemistry: Theory, Data, and Models

Session ID#: 247377

Session Description:
Biogeochemical models struggle to accurately capture microbial effects on soil nutrient cycles, leading to conflicting views on soils as for example carbon sinks or sources under climate change. The current models face challenges in prediction and uncertainty due to limited data and variable microscale processes.This session will offer interdisciplinary insights into soil nutrient dynamics across scales, focusing on how microscale interactions and microbial diversity at aggregate scale impact nutrient cycles at global scales. Topics include integration and harmonization of empirical data, scalable measurement approaches including sensor networks and remote sensing, exploring unifying principles of nutrient cycling and energy flows, and their responses to environmental changes. We will also discuss model parameterization challenges, model complexity trade-offs, and multi-model approaches for better climate model scaling. Contributions from global change experiments, approaches based on integration of omics data with diversity-explicit microbial models are welcome, as is dialogue between marine and terrestrial researchers.
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0463 Microbe/mineral interactions [BIOGEOSCIENCES]
0465 Microbiology: ecology, physiology and genomics [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
Primary Convener:  Elsa Abs, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
Conveners:  Ulas Karaoz, Lawrence Berkeley National Laboratory, Berkeley, United States, Nicola Falco, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Kristen M DeAngelis, University of Massachusetts, Microbiology, Amherst, MA, United States
 
Revealing Missing Microbial Mechanisms in Soil Carbon Models through Community-Resolved Simulations (1856701)
Elsa Abs1, David Coulette2, François-Xavier Joly3, Henry Moss4, Kitty Knight4, Rose Z Abramoff5, Daniel S Goll1, Stefano Manzoni6, Stephan Hattenschwiler7, Yingping Wang8, Xianjin He1, Steven D Allison9 and Philippe Ciais10, (1)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (2)Unité de mathématiques pures et appliquées de l'ENS Lyon, Lyon, France, (3)Research for Agriculture, Food and Environment, Montpellier, France, (4)University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Cambridge, United Kingdom, (5)University of Maine, Orono, United States, (6)Stockholm University, Physical Geography, Stockholm, Sweden, (7)CEFE Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, Montpellier Cedex 05, France, (8)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia, (9)University of California Irvine, Ecology and Evolutionary Biology, Irvine, United States, (10)Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris Saclay, Gif-Sur-Yvette, France
 
Microbial functional traits through the whole soil profile and their response to warming (1858016)
Ulas Karaoz1, Ricardo J Eloy Alves2, Nikola Tolic3, Rosalie Kae Chu3, Carrie Nicora4, Elizabeth K Eder5, Jason Toyoda3, Emiley Eloe-Fadrosh6, Margaret S Torn7 and Eoin Brodie2, (1)Lawrence Berkeley National Laboratory, Berkeley, United States, (2)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (3)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, United States, (4)Pacific Northwest National Laboratory, Earth and Biological Sciences Directorate, Richland, United States, (5)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (6)Joint Genome Institute, Walnut Creek, CA, United States, (7)Berkeley Lab/UC Berkeley, Berkeley, United States
 
Functional Consequences of Solving Elemental Imbalances (1887872)
Jose Murua1, Brittni Bertolet2, Luciana Chavez Rodriguez3 and Steven D Allison1, (1)University of California Irvine, Ecology and Evolutionary Biology, Irvine, United States, (2)Rutgers University Newark, Dept. of Earth and Environmental Sciences, Newark, NJ, United States, (3)Wageningen University and Research Center, Soil Biology Group, Wageningen, Netherlands
 
Soil Microbial Life on the Hydrologic Roller Coaster: Modeling Challenges Across Scales (Invited) (1908824)
Amilcare M Porporato1, Salvatore Calabrese2 and Damola Bimbola Olaitan1, (1)Princeton University, Civil and Environmental Engineering, Princeton, United States, (2)Texas A&M University, Department of Biological and Agricultural Engineering, College Station, United States
 
Characterization of microbial community composition across arctic polygonal tundra ecosystems (1916521)
Morgan Brown, University of Alaska Fairbanks, Fairbanks, AK, United States, Lijia Guo, University of Illinois at Urbana Champaign, Urbana, United States, Mark J Lara, University of Illinois at Urbana Champaign, Plant Biology, Urbana, United States and Mario Muscarella, University of Alaska, Fairbanks, Fairbanks, AK, United States
 
Dry heat beats the peat: warming intensifies the effects of drought on microbial decomposition in a northern peatland (1919816)
Joel E Kostka1, Katherine Duchesneau2, Borja Aldeguer Riquelme3, Caitlin Petro1, Ghiwa Makke4, Madison Green5, Malak Tfaily6, Rachel M. Younge7, Jeff Chanton8, Janet Hatt9, Bridget B McGivern10, Kelly Wrighton11, Hanson Paul12, Quan Quan13, Jian Zhou13, Yiqi Luo13 and Konstantinos Konstantinidis14, (1)Georgia Institute of Technology, School of Biological Sciences, Atlanta, United States, (2)Cornell University, Ithaca, United States, (3)Georgia Institute of Technology Main Campus, School of Civil & Environmental Engineering, Atlanta, United States, (4)University of Arizona, Department of Environmental Science, Tucson, United States, (5)Georgia Institute of Technology Main Campus, School of Biological Sciences, Atlanta, United States, (6)The University of Arizona, Department of Environmental Science, Tucson, United States, (7)Florida State University, Earth Ocean and Atmospheric Sciences, Tallahassee, United States, (8)Florida State University, Department of Earth, Ocean & Atmospheric Science, Tallahassee, United States, (9)Georgia Institute of Technology, Atlanta, United States, (10)Colorado State University, Soil and Crop Sciences, Fort Collins, United States, (11)Colorado State University, Department of Soil and Crop Sciences, Fort Collins, United States, (12)Oak Ridge National Laboratory, Oak Ridge, United States, (13)Cornell University, School of Integrative Plant Science, Ithaca, United States, (14)Georgia Institute of Technology Main Campus, Atlanta, GA, United States
 
Permafrost-specific moisture control functions improve CH₄ and CO₂ predictions in soil carbon models (1934937)
Aaron Price, McGill University, Montreal, QC, Canada, Cynthia Kallenbach, Colorado State University, Durham, United States, Peter Munroe Douglas, California Institute of Technology, Pasadena, United States and Derek Pierson, US Forest Service, Rocky Mountain Research Station, Boise, United States
 
Beyond Microbial Biomass and Carbon Use Efficiency: Rethinking Microbial Activity under Climate Change (Invited) (1954943)
Andreas Richter1, Dennis Metze1, Lucia Fuchslueger1, Hannes Schmidt1, Lisa Stein1, Victoria Ritter1, Cornelia Rottensteiner1, Christina Kaiser1 and Alberto Canarini2, (1)University of Vienna, Centre for Microbiology and Environmental Systems Science, Vienna, Austria, (2)University of Bologna, Department of Biological, Geological, and Environmental Sciences, Bologna, Italy
 
Continental-scale Estimation of Soil Microbial Properties with Mid-infrared Spectroscopy (1961007)
Soni Ghimire1, Zac Freedman2, Yakun Zhang1, Jingyi Huang2, Erica Majumder3, Alfred E Hartemink4, Emily Bonnell Graham5, Odeta Qafoku6 and Joseph Andrews7, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Wisconsin-Madison, Soil and Environmental Sciences, Madison, United States, (3)University of Wisconsin Madison, Bacteriology, Madison, WI, United States, (4)University of Wisconsin Madison, Soil and Environmental Sciences, Madison, United States, (5)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (6)Battelle Pacific Northwest, Richland, United States, (7)University of Wisconsin Madison, Mechanical Engineering, Madison, United States
 
Spatial Heterogeneity of Plant Litter Distribution across North American Drylands (1961106)
Alexi Besser1, Isabel Torres2, Dellena Evelyn Bloom3, Jianghai Peng1, Ashley Bonner4, Alejandro Cueva Dr.5, Daryl Moorhead6, Sasha Reed7, Kathe Todd-Brown4, Jiwei Li1,8 and Heather Throop1,2, (1)School of Earth and Space Exploration, Arizona State University, Tempe, United States, (2)School of Life Sciences, Arizona State University, Tempe, United States, (3)University of Florida, Department of Environmental Engineering Sciences, Gainesville, United States, (4)University of Florida, Gainesville, United States, (5)El Colegio de la Frontera Sur, Tapachula DE Córdova Y Ordóñez, Mexico, (6)University of Toledo, Toledo, United States, (7)U.S. Geological Survey, Southwest Biological Science Center, Moab, United States, (8)School of Ocean Futures, Arizona State University, Tempe, United States
 
Multiscale Microbial Mechanisms Driving Soil Respiration Responses to Drought and Rewetting (1975875)
Kirsten S. Hofmockel1, Mary Suzanne Lipton2, William C Nelson3, Lisa Bramer1, Sheryl L Bell4, Hugh McCullough5, Hyun-Seob Song6 and Mary Lipton, (1)Pacific Northwest National Laboratory, Richland, United States, (2)Pacific Northwest National Laboratory, Environmental and Molecular Sciences, Richland, WA, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Pacific Northwest National Laboratory, Earth and Biological Sciences Directorate, Richland, United States, (5)University of Nebraska Lincoln, Department of Biological Systems Engineering, Lincoln, NE, United States, (6)University of Nebraska Lincoln, Department of Biological Systems Engineering, Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, United States
 
From Biomarkers to Models: Accounting for Microbial Trait Variation and Uncertainty in Soil Necromass Carbon Estimates (1977304)
Aubrey Fine, Oak Ridge National Laboratory, Oak Ridge, TN, United States, Fernanda Santos, Oak Ridge National Laboratory, Environmental Sciences Division/Plant and Soil Interactions group, Oak Ridge, United States and Larry York, Oak Ridge National Laboratory, Oak Ridge, United States
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