Physical robustness of canopy temperature models for crop heat stress simulation across environments and production conditions
2018
Webber, Heidi | White, Jeffrey W. | Kimball, Bruce A. | Ewert, Frank | Asseng, Senthold | Eyshi Rezaei, Ehsan | Pinter, Paul J. | Hatfield, Jerry L. | Reynolds, Matthew P. | Ababaei, Behnam | Bindi, Marco | Doltra, Jordi | Ferrise, Roberto | Kage, Henning | Kassie, Belay T. | Kersebaum, Kurt-Christian | Luig, Adam | Olesen, Jørgen E. | Semenov, Mikhail A. | Stratonovitch, Pierre | Ratjen, Arne M. | Lamorte, Robert L. | Leavitt, Steven W. | Hunsaker, Douglas J. | Wall, Gerard W. | Martre, Pierre | Rheinische Friedrich-Wilhelms-Universität Bonn | USDA-ARS : Agricultural Research Service | Department of Agricultural and Biological Engineering [Gainesville] (UF|ABE) ; Institute of Food and Agricultural Sciences [Gainesville] (UF|IFAS) ; University of Florida [Gainesville] (UF)-University of Florida [Gainesville] (UF) | Center for Development Research (ZEF) ; Rheinische Friedrich-Wilhelms-Universität Bonn | European Biological Control Laboratory, USDA-ARS (EBCL - USDA ARS) | International Maize and Wheat Improvement Center (CIMMYT) ; Consultative Group on International Agricultural Research [CGIAR] (CGIAR) | Écophysiologie des Plantes sous Stress environnementaux (LEPSE) ; Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | DISPAA ; Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) | Catabrian Agricultural Research and Training Center (CIFA) | Institute of Crop Science and Plant Breeding ; Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) | Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) ; Leibniz Association | Department of Agroecology ; Aarhus University [Aarhus] | Computational and Systems Biology Department ; Rothamsted Research ; Biotechnology and Biological Sciences Research Council (BBSRC)-Biotechnology and Biological Sciences Research Council (BBSRC) | Laboratory of Tree-Ring Research ; University of Arizona | German Science Foundation (project EW 119/5-1); FACCE JPI MACSUR project (2812ERA115) ; Food Policy Research Institute (IFPRI) through the Global Futures and Strategic Foresight project; CGIAR Research Program on Climate Change; Agriculture and Food Security (CCAFS) ; CGIAR Research Program on Wheat; FACCE JPI MACSUR project (031A103B); metaprogram Adaptation of Agriculture and Forests to Climate Change (AAFCC) INRA; JPI FACCE MACSUR; JPI FACCE MACSUR2; German Science Foundation (project KA 3046/8-1)
International audience
Show more [+] Less [-]English. Despite widespread application in studying climate change impacts, most crop models ignore complex interactions among air temperature, crop and soil water status, CO2 concentration and atmospheric conditions that influence crop canopy temperature. The current study extended previous studies by evaluating Tc simulations from nine crop models at six locations across environmental and production conditions. Each crop model implemented one of an empirical (EMP), an energy balance assuming neutral stability (EBN) or an energy balance correcting for atmospheric stability conditions (EBSC) approach to simulate Tc. Model performance in predicting Tc was evaluated for two experiments in continental North America with various water, nitrogen and CO2 treatments. An empirical model fit to one dataset had the best performance, followed by the EBSC models. Stability conditions explained much of the differences between modeling approaches. More accurate simulation of heat stress will likely require use of energy balance approaches that consider atmospheric stability conditions.
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