A Dynamic Model for Strategies and Dynamics of Plant Water-Potential Regulation Under Drought Conditions.

ABSTRACT: Vegetation responds to drought through a complex interplay of plant hydraulic mechanisms, posing challenges for model development and parameterization. We present a mathematical model that describes the dynamics of leaf water-potential over time while considering different strategies by which plant species regulate their water-potentials. The model has two parameters: the parameter λ describing the adjustment of the leaf water potential to changes in soil water potential, and the parameter Δψww describing the typical 'well-watered' leaf water potentials at non-stressed (near-zero) levels of soil water potential. Our model was tested and calibrated on 110 time-series datasets containing the leaf- and soil water potentials of 66 species under drought and non-drought conditions. Our model suc

SUBMITTER: Papastefanou P 

PROVIDER: S-EPMC7199548 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature