Plant profit maximisation improves predictions of European forest responses to drought

Authors :: Sabot, Manon E. B.
De Kauwe, Martin G.
Pitman, Andy J.
Medlyn, Belinda E.
Verhoef, Anne
Ukkola, Anna M.
Abramowitz, Gab
ARC Centre of Excellence for Climate Extremes and Climate Change Research Centre, University of New South Wales, Sydney, NSW 2052, Australia
Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
Department of Geography and Environmental Science, The University of Reading, PO Box 227, Reading, RG6 6AB, United Kingdom
ARC Centre of Excellence for Climate Extremes and Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
Publication Year :: 2020
Publisher :: Wiley, 2020.
Abstract: Knowledge of how water stress impacts the carbon and water cycles is a key uncertainty in terrestrial biosphere models.\ud - We tested a new profit maximisation model, where photosynthetic uptake of CO2 is optimally traded against plant hydraulic function, as an alternative to the empirical functions commonly used in models to regulate gas exchange during periods of water stress. We conducted a multi-site evaluation of this model at the ecosystem scale, before and during major droughts in Europe. Additionally, we asked whether the maximum hydraulic conductance in the soil-plant\ud continuum (

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