B021
Biological weathering in the Critical Zone: An integrated multi-domain approach

Session ID#: 83317

Session Description:
Microorganisms, roots and associated fungal symbionts drive mineral weathering and extent throughout the Critical Zone (CZ) by acting as conduits for water and nutrient flow and through production of organic acids. Advances in process-based models, isotopic-, image-, and “-omics”-based approaches reveal the contribution of life interacting with primary rock mineral materials resulting in soil formation, expanding our understanding of the depth of the CZ. The feedbacks between biological weathering, transport, porosity generation, and solute fluxes within the subsurface environment at varying spatiotemporal scales remains to be explored.  How are microbially-mediated transformations governed by vadose zone architecture, rock/soil fracture/matrix hydraulic pathways, and the presence of roots? How can we better elucidate biological controls on chemical weathering? We seek cross-disciplinary studies that are utilizing modeling approaches and integrating novel data sets to understand the interactions and feedbacks between roots, microorganisms, nutrients, water and minerals on varying spatiotemporal scales throughout Earth’s Critical Zone.
Co-Organized:
  • EP - Earth and Planetary Surface Processes
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0463 Microbe/mineral interactions [BIOGEOSCIENCES]
0465 Microbiology: ecology, physiology and genomics [BIOGEOSCIENCES]
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]

Primary Convener:  Dawson Fairbanks, University of Arizona, Department of Soil, Water and Environmental Science, Tucson, AZ, United States
Conveners:  Susana Roque-Malo, University of Illinois at Urbana Champaign, Urbana, IL, United States, Nicholas C Dove, University of California Merced, Merced, CA, United States and Pamela L Sullivan, Oregon State University, College of Earth, Ocean, and Atmospheric Science, Corvallis, OR, United States
Primary Liaison:  Susana Roque-Malo, University of Illinois at Urbana Champaign, Urbana, IL, United States
 
A reactive transport framework for the co-evolution of rhizodeposition and mineral weathering below soil (Invited) (486222)
Jennifer L Druhan, University of Illinois at Urbana Champaign, Department of Geology, Urbana, IL, United States, Alison K. Tune, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, Jia Jia Wang, University of Illinois Urbana Champaign, Department of Geology, Champaign, IL, United States and Daniella Marie Rempe, University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States
 
Ground Basalt Application to Agricultural land as an Enhanced Weathering Strategy for CO2 Sequestration (Invited) (489806)
Steven A Banwart1, Euripides P Kantzas2, Mark Lomas2, Peter Wade2, Lyla Taylor2 and David John Beerling2, (1)University of Leeds, Global Food and Environment Institute, Leeds, LS2, United Kingdom, (2)University of Sheffield, Animal and Plant Sciences, Sheffield, United Kingdom
 
Mineral-dependent Microbial Growth and Influenced Metabolic Behaviors (527756)
Zibo Li, Xiancai Lu, Lianwen Liu, Junfeng Ji and Jun Chen, Nanjing University, School of Earth Sciences and Engineering, Nanjing, China
 
Identifying the organic and inorganic products of incipient weathering in natural environments (560495)
Rebecca Lybrand, Oregon State University, Department of Crop and Soil Science, Corvallis, OR, United States, Jason Austin, University of Georgia, Athens, United States, Rosalie Kae Chu, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, Odeta Qafoku, Battelle Pacific Northwest, Richland, WA, United States, Tom Resch, Pacific Northwest National Lab, Richland, WA, United States, Erin Rooney, Oregon State University, Corvallis, OR, United States, Paul A Schroeder, University of Georgia, Athens, Department of Geology, Athens, GA, United States, Malak M Tfaily, University of Arizona, Tucson, AZ, United States, Jason Toyoda, Pacific Northwest National Laboratory, EMSL, Richland, WA, United States, Vaithiyalingam Shutthanandan, Pacific Northwest National Laboratory, Richland, WA, United States, Dragos George Zaharescu, University of Arizona Biosphere-2, Tucson, AZ, United States, Maya Bergmann, Oregon State University, Crop and Soil Science, Corvallis, United States, Benjamin Pierce, University of Wisconsin River Falls, River Falls, United States and Rachel E Gallery, University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States
 
Using apparent respiratory quotient and fixed potential electrodes to quantify iron redox in upland soils of the Susquehanna Shale Hills Critical Zone Observatory (582676)
Caitlin Anne Hodges1, John M Regan2, Brandon Forsythe3, Susan Brantley3 and Jason P Kaye4, (1)Pennsylvania State University, Department of Ecosystem Science and Management, University Park, PA, United States, (2)Pennsylvania State University, Environmental Engineering, University Park, PA, United States, (3)Pennsylvania State University, Earth and Environmental Systems Institute, University Park, PA, United States, (4)Department of Ecosystem Science and Management, State College, PA, United States
 
Biological Cycling of Potassium by Roots as a Control on Mixed-layer Clays (584518)
Jason Austin, University of Georgia, Athens, GA, United States, Paul A Schroeder, University of Georgia, Athens, Department of Geology, Athens, GA, United States and Daniel deB. Richter Jr, Duke University, Nicholas School of the Environment, Durham, NC, United States
 
Leveraging soil geochemistry and soil carbon dynamics at the Critical Zone and Ecosystem Observatory at Nivolet, Gran Paradiso National Park, Italy to project future alpine ecosystem functioning (614640)
Ilaria Baneschi1, Ashlee Laura Denton Dere2, Emma L Aronson3, Ramona Balint4, Sharon A Billings5, Assunta Donato1, Mariasilvia Giamberini6, Marta Magnani4, Pietro Mosca4, Maddalena Pennisi1, Antonello Provenzale7, Brunella Raco1 and Timothy S. White2, (1)CNR Institute of Geosciences and Earth Resources, Pisa, Italy, (2)Penn State University, University Park, PA, United States, (3)University of California Riverside, Center for Conservation Biology, Riverside, CA, United States, (4)CNR Institute of Geosciences and Earth Resources, Torino, Italy, (5)Univ Kansas, Lawrence, KS, United States, (6)Institute of Geosciences and Earth Resources National Research Council of Italy, Via Moruzzi 1, Pisa, Italy, (7)Consiglio Nazionale delle Ricerche, Institute of Geosciences and Earth Resources (IGG), Pisa, Italy
 
Mechanisms of Trace Metal Mobilization and Retention in Weathering Sulfidic Shale (629832)
Sergio Carrero Romero1, Sarah P Slotznick2, Allison Sharrar3, Bhavna Arora4, Nicholas Swanson-Hysell5, Sirine C Fakra6, Benjamin Gilbert7, Carl I Steefel8 and Jillian F Banfield3, (1)Lawrence Berkeley National Laboratory, Berkeley, United States, (2)California Institute of Tech., Pasedena, CA, United States, (3)University of California, Berkeley, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Energy Geosciences Division, Berkeley, CA, United States, (5)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (6)Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, United States, (7)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (8)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States
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