EP11D:
Tree, Water, Regolith, and Rock: The Role of Roots and Plant Hydraulics in Critical Zone Processes Posters


Submit an Abstract to this Session


Session ID#: 49955

Session Description:
Plants affect weathering, sediment mobilization, and hillslope form by exuding weathering reagents, forming fractures, anchoring sediment, and altering hydrologic fluxes on different scales. In turn, plant growth is limited by exogenous factors including soil depth, preexisting fractures, or nutrients/water.  

These processes and feedback have yet to be integrated into a holistic/predictive model of ‘co-evolution’ of the physical environment and functional biology of the critical zone. Incomplete knowledge of couplings and feedbacks between hydrological, geochemical, geomorphic, and biological processes limits progress. Hydrology provides an avenue to link these individual processes, which may be mediated through the plant hydraulic system. Root-mediated mechanical and geochemical processes are involved in all aspects of hillslope evolution. Feedbacks may arise by structuring of plant communities by the physical environment (water/nutrient availability, and substrate stability). Contributions across the disciplines exploring these connections through empirical, experimental or theoretical/modeling work on interactions of plants and environment are welcome.

Primary Convener:  Junyan Ding, Occidental college, Los Angeles, United States
Conveners:  Suzanne P Anderson, Univ of Colorado, Department of Geological Sciences and Institute of Arctic and Alpine Research, Boulder, United States and Edward A Johnson, University of Calgary, Biological Sciences, Calgary, AB, Canada
Primary Liaison:  Junyan Ding, Occidental college, Los Angeles, United States
Chairs:  Junyan Ding, Occidental college, Los Angeles, United States and Suzanne P Anderson, Univ of Colorado, Department of Geological Sciences and Institute of Arctic and Alpine Research, Boulder, United States
OSPA Liaison:  Junyan Ding, Occidental college, Los Angeles, United States

Cross-Listed:
  • B - Biogeosciences
  • H - Hydrology
Index Terms:

0416 Biogeophysics [BIOGEOSCIENCES]
1826 Geomorphology: hillslope [HYDROLOGY]
1835 Hydrogeophysics [HYDROLOGY]
5415 Erosion and weathering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Abstracts Submitted to this Session:

Timothy S. White1, Ashlee Laura Denton Dere2 and Sarah Sharkey1, (1)Pennsylvania State University Main Campus, Earth and Environmental Systems Institute, University Park, PA, United States, (2)University of Nebraska at Omaha, Geography/Geology, Omaha, NE, United States
Jacob Bryant Clyne, University of Arkansas, Fayetteville, AR, United States and Jill A Marshall, University of Arkansas, Geosciences, Fayetteville, AR, United States
Tom Vanwalleghem, University of Cordoba, Cordoba, Spain
Elizabeth Ann Hasenmueller1, Xin Gu2, Julie N Weitzman3, Thomas S Adams4, Gary E. Stinchcomb5, David M Eissenstat4, Patrick J Drohan4, Susan Brantley6 and Jason P Kaye4, (1)Saint Louis University, Earth, Environmental, and Geospatial Science; WATER Institute, Saint Louis, United States, (2)Pennsylvania State University, Department of Geosciences, University Park, United States, (3)CUNY Advanced Science Research Center and Cary Institute of Ecosystem Studies, New York, United States, (4)Pennsylvania State University, Department of Ecosystem Science and Management, University Park, PA, United States, (5)University of Memphis, Department of Earth Science, TN, United States, (6)Pennsylvania State University, Earth and Environmental Systems Institute, University Park, PA, United States
Junyan Ding, Occidental college, Los Angeles, United States, Ying Fan, Rutgers University, Department of Earth and Planetary Sciences, Piscataway, United States and Edward A Johnson, University of Calgary, Biological Sciences, Calgary, AB, Canada
Russell Patrick Callahan, University of Wyoming, Department of Geology and Geophysics, Laramie, United States, Clifford S Riebe, University of Wyoming, Laramie, United States, W. Steven Holbrook, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States and Michael Goulden, University of California Irvine, Earth System Science, Irvine, United States
David Uhlig, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Wulf Amelung, University of Bonn, Institute of Crop Sciences and Resource Conservation, Bonn, Germany and Friedhelm von Blanckenburg, GFZ German Research Centre for Geosciences, Potsdam, Germany
Susan Schwinning, Texas State University San Marcos, San Marcos, TX, United States, Kevin J McInnes, Texas A & M University, College Station, TX, United States and James Heilman, Texas A&M Univ, College Station, TX, United States
P. Zion Klos, Marist College, Department of Environmental Science and Policy, Poughkeepsie, NY, United States and Christina (Naomi) Tague, University of California Santa Barbara, Santa Barbara, CA, United States
Tyler Messerschmidt, Virginia Institute of Marine Science, Gloucester Point, VA, United States, Matthew L Kirwan, William & Mary's VIMS & Batten School, Virginia Institute of Marine Science, Gloucester Point, VA, United States and David Nicks, Virginia Institute of Marine Science, Physical Science, Gloucester Point, VA, United States
Zachary Scott Brecheisen1, Daniel deB. Richter Jr2, Charles W. Cook3, Paul Heine1 and Jason Austin4, (1)Duke University, Nicholas School of the Environment, Durham, NC, United States, (2)Nicholas School of the Environment, Duke University, Durham, United States, (3)Duke University, Durham, NC, United States, (4)University of Georgia, Athens, United States
Rachel Estee Adams, Texas A&M University, Ecosystem Science and Management, College Station, TX, United States, F. Andrew Jones, Oregon State University, Corvallis, United States and Jason B West, Texas A & M University College Station, College Station, United States
Xihong Cui, Beijing Normal University, State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing, China
Louis A Derry, Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, United States and Frank Horowitz, Cornell University, Institute for the Study of the Continents, Ithaca, NY, United States