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Session Proposal: Microorganisms and Biogeochemical Cycles in the Critical Zone (AGU25)

B062
Microorganisms and Biogeochemical Cycles in the Critical Zone

Session ID#: 252236

Session Description:
The critical zone (CZ) extends from the top of the vegetation canopy down to the circulating groundwater, through a range of habitats occupied by environmental and host-associated microorganisms. This paradigm encourages integrative research across disciplines towards understanding and predicting processes that support life. Microorganisms are found in different environments, including the whole range of the critical zone, from deep subsurface rock fissures to the epiphytes and endophytes of leaves of tall trees. From a microbial perspective, even a seemingly homogeneous forest or grassland contains a wide range of microhabitats, providing a multitude of different ecological niches supporting an astounding degree of microbial diversity. Microorganisms play a range of vital roles in the critical zone, including catalyzing decomposition, nutrient cycles, and mineral weathering. This cross-disciplinary session invites presentations across the range of ecosystem types and research approaches on the diversity patterns, composition, and function of microorganisms in the critical zone.
Co-Sponsor(s):
  • EP - Earth and Planetary Surface Processes
  • GC - Global Environmental Change
  • H - Hydrology
  • NS - Near Surface Geophysics
Index Terms:

0410 Biodiversity [BIOGEOSCIENCES]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0448 Geomicrobiology [BIOGEOSCIENCES]
1402 - Critical Zone [CRITICAL ZONE]
Primary Convener:  Emma L Aronson, University of California Riverside, Department of Microbiology and Plant Pathology, Riverside, CA, United States
Conveners:  Stephen C Hart, University of California Merced, Life and Environmental Sciences, Merced, United States and Jerald Ibal, Idaho State University, Biological Sciences, Pocatello, United States
Student/Early Career Convener:  Micah Unruh, University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, United States
 
Contrasting depth dependencies of root presence and root mass underscore prolific root-regolith interactions (Invited) (1862070)
Sharon A Billings1, Pamela L Sullivan2, Li Li3, Jesse B Nippert4, Daniel Hirmas5, Hoori Ajami6, Kamini Singha7, Alejandro N Flores8, Whendee L Silver9, Emma Hauser10, Micah Unruh11, Ligia Souza12, Jon Chorover13, Emma L Aronson14, Daniel deB. Richter Jr15, Stephen C Hart16, Jacqueline R. Gerson17, Ilaria Baneschi18, Alexander Ederer13, William H McDowell19, Rachel Keen20, Timothy S. White21, Ashlee Laura Denton Dere22, Rachel E Gallery23, Daniel Markewitz24 and Kathleen A Lohse25, (1)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, KS, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (3)Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States, (4)Kansas State University, Biology, Manhattan, United States, (5)Texas Tech University, Department of Plant and Soil Science, Lubbock, United States, (6)University of California, Riverside, Department of Environmental Sciences, Riverside, United States, (7)Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO, United States, (8)Boise State University, Department of Geosciences, Boise, ID, United States, (9)University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States, (10)University of Wisconsin Madison, Forest and Wildlife Ecology, Madison, WI, United States, (11)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, United States, (12)Colorado State University, Fort Collins, United States, (13)University of Arizona, Department of Environmental Science, Tucson, United States, (14)University of California Riverside, Department of Microbiology and Plant Pathology, Riverside, CA, United States, (15)Nicholas School of the Environment, Duke University, Durham, United States, (16)University of California Merced, Life and Environmental Sciences, Merced, United States, (17)Cornell University, College of Agriculture and Life Sciences, Ithaca, United States, (18)CNR Institute of Geosciences and Earth Resources, Pisa, Italy, (19)University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States, (20)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey & Center for Ecological Research, University of Kansas, United States, (21)Pennsylvania State University Main Campus, Earth and Environmental Systems Institute, University Park, PA, United States, (22)University of Nebraska at Omaha, Geography/Geology, Omaha, NE, United States, (23)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (24)University of Georgia, Warnell School of Forestry and Natural Resources, Athens, GA, United States, (25)Idaho State University, Biological Sciences, Idaho Falls, ID, United States
 
Do the Mechanisms Controlling Soil Extracellular Enzyme Activities Vary with Depth? An Interplay among Climatic, Edaphic, and Biological Factors (1912459)
Yang Yang1,2, Emma L Aronson3, Micah Unruh4, Alexander Ederer5, Jacqueline R. Gerson6, Mark Swenson7, Whendee L Silver8, Sharon A Billings9, William H McDowell10, Jon Chorover5, Rachel E Gallery11, Kathleen A Lohse12, Jon Botthoff2 and Stephen C Hart13,14, (1)Auburn University, College of Forestry, Wildlife and Environment, Auburn, United States, (2)University of California Riverside, Department of Microbiology and Plant Pathology, Riverside, United States, (3)University of California Riverside, Department of Microbiology and Plant Pathology, Riverside, CA, United States, (4)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, United States, (5)University of Arizona, Department of Environmental Science, Tucson, United States, (6)Cornell University, College of Agriculture and Life Sciences, Ithaca, United States, (7)University of California Riverside, Department of Entomology, Riverside, United States, (8)University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States, (9)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, KS, United States, (10)University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States, (11)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (12)Idaho State University, Department of Biological Sciences, Pocatello, United States, (13)University of California Merced, Life and Environmental Sciences, Merced, United States, (14)University of California Merced, Sierra Nevada Research Institute, Merced, United States
 
Thaw is Change, and Change Is inevitable: Understanding Bacterial Community Changes Following Permafrost Thaw (1921492)
Mark McDonald1, Sarah Bagby2, Christopher Baker3, Robyn Barbato4, Jiri Barta5, James Andrew Bradley6, Stacey Jarvis Doherty3, Rebecca E Hewitt7, Hannah Holland Moritz8, Mincheol Kim9, Brian D Lanoil10, Joy O'Brien11, Ursel Schuette12, Katherine Shek13, Tatiana A Vishnivetskaya14, Jana Voříšková15, Jaimie West16, Miranda Yang7, Mobeen Zahid17 and Jessica Gilman Ernakovich18, (1)University of Arkansas, Fayetteville, AR, United States, (2)Case Western Reserve University, Department of Biology, Cleveland, United States, (3)U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, United States, (4)USACE-ERDC CRREL, Vicksburg, United States, (5)University of South Bohemia, Ceske Budejovice, Czech Republic, (6)School of Biological and Behavioural Sciences, Queen Mary University of London, London, United Kingdom, (7)Amherst College, Amherst, United States, (8)University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States, (9)Korea Polar Research Insitute, Division of Life Sciences, Incheon, South Korea, (10)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (11)Indiana University Bloomington, Bloomington, United States, (12)University of Alaska Fairbanks, Fairbanks, AK, United States, (13)University of New Hampshire Main Campus, Natural Resources and the Environment, Durham, United States, (14)University of Tennessee, Knoxville, United States, (15)Czech Academy of Sciences, Prague, Czech Republic, (16)Arizona State University, School of Life Science, Tempe, United States, (17)University of Colorado at Boulder, Department of Ecology and Evolutionary Biology, Boulder, United States, (18)University of New Hampshire Main Campus, Department of Natural Resources and the Environment, Durham, NH, United States
 
Depth Structures Absolute Growth Rates of Methane-cycling Microbes in a Coastal Wetland (1934255)
Satya Kent1, Genevieve L Noyce2, Paul Dijkstra1, Egbert Schwartz1 and Bruce A Hungate1, (1)Northern Arizona University, Department of Biological Sciences and the Center for Ecosystem Science and Society, Flagstaff, United States, (2)Smithsonian Environmental Research Center, Edgewater, United States
 
Wildfire Effects on Carbon Losses through Combustion vs. Altered Microbial Respiration Rates Post-fire in Canadian Boreal Forest (Invited) (1959908)
Thea Whitman1,2, Dana Johnson1, Kelsey Kruger1, Emily Kaufman1 and Lauren Sielski1, (1)University of Wisconsin-Madison, Department of Soil and Environmental Sciences, Madison, United States, (2)University of British Columbia, Department of Microbiology and Immunology, Vancouver, Canada
 
Microbial Community Composition of Ancient Hydric Soils and its Recovery in Contemporary Floodplain Restorations (1962538)
Alexis Yaculak1, Jinjun Kan2, Marc Peipoch2, Eric Moore1, Joseph George Galella3, Sujay Kaushal4, Tara LE Trammell5, Erin K Peck, PhD6 and Shreeram P Inamdar1, (1)University of Delaware, Plant & Soil Sciences, Newark, DE, United States, (2)Stroud Water Research Center, Avondale, PA, United States, (3)Franklin and Marshall College, Department of Earth and Environment, Lancaster, United States, (4)University of Maryland, Department of Geology and Earth System Science Interdisciplinary Center, College Park, United States, (5)University of Delaware, Plant and Soil Sciences, Newark, DE, United States, (6)University of Rhode Island, Graduate School of Oceanography, Narragansett, United States
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