B52C:
Response of Terrestrial Ecosystems Biogeochemistry to Dynamic Hydrological and Climatic Drivers I


Session ID#: 8049

Session Description:
Hydrological and climatic conditions regulate the biogeochemical functioning of terrestrial ecosystems and their interactions with other compartments of the earth system- atmosphere, surface waters, and groundwater. Interactions include exchanges of carbon, nutrients and greenhouse gases, which in turn have profound implications for regional and global biogeochemical cycles, water and air quality, and climate change. This session will focus on interdisciplinary research that advances our mechanistic understanding of the biogeochemistry of terrestrial ecosystems in response to dynamic hydrologic and climatic drivers, e.g., flooding events, water table fluctuations and freeze thaw cycles. The session will facilitate in-depth exchanges of concepts, data, measurement techniques, and modelling approaches to represent soil respiration in Earth System Models. We invite biogeochemists, climatologists, ecologists, hydrologists, and system modellers to present results that provide insight into how terrestrial ecosystems respond to changes in hydrological and climatic conditions and water availability.
Primary Convener:  Fereidoun Rezanezhad, University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada
Convener:  Geertje Pronk, University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada
Chairs:  Alan Knapp, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, United States and Melinda Dianne Smith, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, CO, United States
OSPA Liaison:  Fereidoun Rezanezhad, University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada

Cross-Listed:
  • GC - Global Environmental Change
  • H - Hydrology
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
1813 Eco-hydrology [HYDROLOGY]

Abstracts Submitted to this Session:

Drought-induced Changes in Dryland Soil Biogeochemical Cycles (Invited) (62660)
Jayne Belnap1, Anthony Darrouzet-Nardi2, Michael Duniway3, Scott Ferrenberg1, Scott Ferrenberg1, David L Hoover4 and Sasha Reed5, (1)Southwest Biological Science Center Moab, Moab, UT, United States, (2)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, (3)USGS, Baltimore, United States, (4)USGS, Baltimore, MD, United States, (5)Southwest Biological Science Center Moab, Moab, United States
Impact of Freezing and Thawing on Soil Oxygen Dynamics and Nutrient Fluxes (73693)
Tatjana Milojevic1, Fereidoun Rezanezhad2, Philippe Van Cappellen3, Christina Marie Smeaton3 and Chris Thomas Parsons3, (1)University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada, (2)University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada, (3)University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada
Quantifying biogeochemical responses to hydrological perturbations in terrestrial systems using geophysical monitoring and inversion schemes (Invited) (60669)
Susan S. Hubbard1, Baptiste Dafflon2, Anh Phuong Tran2, Jinsong Chen3 and Haruko M Wainwright2, (1)Oak Ridge National Laboratory, Oak Ridge, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)Lawrence Berkeley National Lab, Berkeley, CA, United States
Projecting the Dependence of Sage-steppe Vegetation on Redistributed Snow in a Warming Climate. (75613)
Benjamin Soderquist1, Kathleen Kavanagh2, Dr. Timothy E Link, PhD3, Mark S Seyfried4 and Eva Kristina Strand3, (1)University of Idaho, Moscow, ID, United States, (2)Texas A & M University College Station, College Station, TX, United States, (3)University of Idaho, Department of Forest, Rangeland, and Fire Sciences, Moscow, ID, United States, (4)USDA-ARS, Northwest Watershed Research Center, Boise, United States
The Effects of More Extreme Rainfall Patterns on Infiltration and Nutrient Losses in Agricultural Soils (75926)
Laura Hess1, Bruno Basso2, Eve-Lyn S Hinckley3, Philip Robertson4 and Pamela A Matson1, (1)Stanford University, Stanford, CA, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (4)Michigan State University, Plant, Soil and Microbial Sciences, East Lansing, United States
Ecosystem response to multiple drought events: the role of legacy effects (85969)
Melinda Dianne Smith, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, CO, United States; Colorado State University, Graduate Degree Program in Ecology, Fort Collins, CO, United States, David L Hoover, USGS, Baltimore, MD, United States, Kevin R. Wilcox, University of Oklahoma, Department of Microbiology and Plant Biology, Norman, OK, United States, Andrew Jennings Felton, Montana State University, Land Resources and Environmental Sciences, Bozeman, MT, United States and Alan Knapp, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, United States
Soil Respiration - A Geochemist's Perspective (Invited) (79982)
Philippe Van Cappellen, Ecohydrology Research Group, Water Institute and Global Water Futures Program, University of Waterloo, Waterloo, ON, Canada
Pulse driven productivity in semi-arid lands (83265)
Amy C Bennett1, Scott L Collins2, Gregory E Maurer3, Albert Ruhi4 and Marcy E Litvak2, (1)University of New Mexico Main Campus, Albuquerque, NM, United States, (2)University of New Mexico, Department of Biology, Albuquerque, NM, United States, (3)University of New Mexico Main Campus, Department of Biology, Albuquerque, NM, United States, (4)University of California Berkeley, Berkeley, CA, United States

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