The effect of plant water storage on water fluxes within the coupled soil-plant system [The role of plant water storage on water fluxes within the coupled soil-plant system]
- Duke Univ., Durham, NC (United States)
- Duke Univ., Durham, NC (United States); Bordeaux Sciences Argo, Gradignan Cedex (France)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Rutgers Univ., Newark, NJ (United States)
- Marquette Univ., Milwaukee, WI (United States)
In addition to buffering plants from water stress during severe droughts, plant water storage (PWS) alters many features of the spatio-temporal dynamics of water movement in the soil–plant system. How PWS impacts water dynamics and drought resilience is explored using a multi-layer porous media model. Here, the model numerically resolves soil–plant hydrodynamics by coupling them to leaf-level gas exchange and soil–root interfacial layers. Novel features of the model are the considerations of a coordinated relationship between stomatal aperture variation and whole-system hydraulics and of the effects of PWS and nocturnal transpiration (Fe,night) on hydraulic redistribution (HR) in the soil.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1345006
- Journal Information:
- New Phytologist, Journal Name: New Phytologist Journal Issue: 3 Vol. 213; ISSN 0028-646X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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