For those who plan to attend the 2018 AGU Fall Meeting and are interested in the role of plant on CZO processes, please consider to come to participate the following session: EP044. Tree, Water, Regolith and Rock: The Role of Roots and Plant Hydraulics in Critical Zone Processes (#49955) The abstract submission site will open on Wednesday, 13 June. The deadline for all submissions is Wednesday, 1 August 23:59 EDT. Abstracts will not be accepted for review after this date.
The AGU meeting will be held on 10-14 December 2018 in Washington, D.C. Detail can be found at https://fallmeeting.agu.org/2018/
Tree, Water, Regolith and Rock: The Role of Roots and Plant Hydraulics in Critical Zone Processes
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 â€˜co-evolutionâ€™ 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 Section/Focus Group: Earth and Planetary Surface Processes
SWIRL Theme: Earth Processes
Suzanne P Anderson, Univ of Colorado Dept. of Geography
Junyan Ding, University of Calgary, Biogeoscience
Edward Johnson, University of Calgary, Biogeoscience
We are looking forward to seeing you in Washington!