How accurately do maize crop models simulate the interactions of atmospheric CO2 concentration levels with limited water supply on water use and yield?
Jean-Louis Durand
(1)
,
Kenel Delusca
(1)
,
Ken Boote
(2)
,
Jon Lizaso
(3)
,
Remy Manderscheid
(4)
,
Hans Johachim Weigel
(4)
,
Alex C Ruane
(5)
,
Cynthia Rosenzweig
(5)
,
Jim Jones
(2)
,
Laj Ahuja
(6, 7)
,
Saseendran Anapalli
(6)
,
Bruno Basso
(8)
,
Christian Baron
(9)
,
Patrick Bertuzzi
(10)
,
Christian Biernath
(11)
,
Delphine Deryng
(12)
,
Franck Ewert
(13)
,
Thomas Gaiser
(13)
,
Sebastian Gayler
(13)
,
Florian Heinlein
(11)
,
Kurt Christian Kersebaum
(14)
,
Soo-Hyung Kim
(15)
,
Christoph Müller
(16)
,
Claas Nendel
(17)
,
Albert Olioso
(18)
,
Eckart Priesack
(11)
,
Julian Ramirez Villegas
(19, 20)
,
Dominique Ripoche
(10)
,
Reimund P. Rötter
(21)
,
Sabine I Seidel
(13)
,
Amit Srivastava
(13)
,
Fulu Tao
(21, 22)
,
Dennis Timlin
(23)
,
Tracy Twine
(24)
,
Enli Wang
(25)
,
Heidi Webber
(26, 27)
,
Zhigan Zhao
(28)
1
P3F -
Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères
2 UF - University of Florida [Gainesville]
3 CEIGRAM - Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios y Medioambientales
4 Johann Heinrich von Thünen-Institut = Thünen Institute
5 GSFC - NASA Goddard Space Flight Center
6 CPSRU
7 CPSRU
8 Department of Geological Sciences
9 UMR TETIS - Territoires, Environnement, Télédétection et Information Spatiale
10 AGROCLIM - Agroclim
11 Institute of Biochemical Plant Pathology
12 Computation Institute
13 INRES - Institute of Crop Science and Resource Conservation [Bonn]
14 Institute of Soil Science and Land Evaluation, Section Biogeophysics
15 School of Environmental and Forest Sciences
16 PIK - Potsdam Institute for Climate Impact Research
17 ZALF - Leibniz-Zentrum für Agrarlandschaftsforschung
18 EMMAH - Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes
19 UWA - School of Earth and Environment
20 CIAT - International Center for Tropical Agriculture [Colombie]
21 LUKE - Natural Resources Institute Finland
22 IGSNRR - Institute of geographical sciences and natural resources research [CAS]
23 Crop Systems and Global Change Laboratory
24 Department of Soil, Water, & Climate
25 Land and Water
26 INRES - Institut für Nutzpflanzenwissenschaften und Ressourcenschutz
27 Rheinische Friedrich-Wilhelms-Universität Bonn
28 CAU - China Agricultural University
2 UF - University of Florida [Gainesville]
3 CEIGRAM - Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios y Medioambientales
4 Johann Heinrich von Thünen-Institut = Thünen Institute
5 GSFC - NASA Goddard Space Flight Center
6 CPSRU
7 CPSRU
8 Department of Geological Sciences
9 UMR TETIS - Territoires, Environnement, Télédétection et Information Spatiale
10 AGROCLIM - Agroclim
11 Institute of Biochemical Plant Pathology
12 Computation Institute
13 INRES - Institute of Crop Science and Resource Conservation [Bonn]
14 Institute of Soil Science and Land Evaluation, Section Biogeophysics
15 School of Environmental and Forest Sciences
16 PIK - Potsdam Institute for Climate Impact Research
17 ZALF - Leibniz-Zentrum für Agrarlandschaftsforschung
18 EMMAH - Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes
19 UWA - School of Earth and Environment
20 CIAT - International Center for Tropical Agriculture [Colombie]
21 LUKE - Natural Resources Institute Finland
22 IGSNRR - Institute of geographical sciences and natural resources research [CAS]
23 Crop Systems and Global Change Laboratory
24 Department of Soil, Water, & Climate
25 Land and Water
26 INRES - Institut für Nutzpflanzenwissenschaften und Ressourcenschutz
27 Rheinische Friedrich-Wilhelms-Universität Bonn
28 CAU - China Agricultural University
Jean-Louis Durand
- Fonction : Auteur
- PersonId : 735133
- IdHAL : jean-louis-durand
- ORCID : 0000-0003-2751-168X
Delphine Deryng
- Fonction : Auteur
- PersonId : 772077
- ORCID : 0000-0001-6214-7241
Christoph Müller
- Fonction : Auteur
- PersonId : 772079
- ORCID : 0000-0003-2234-6902
Claas Nendel
- Fonction : Auteur
- PersonId : 772081
- ORCID : 0000-0001-7608-9097
Albert Olioso
- Fonction : Auteur
- PersonId : 747885
- IdHAL : albert-olioso
- ORCID : 0000-0001-8342-9272
- IdRef : 133862283
Heidi Webber
- Fonction : Auteur
- PersonId : 1005180
Résumé
This study assesses the ability of 21 crop models to capture the impact of elevated CO2 concentration ([CO2]) on maize yield and water use as measured in a 2-year Free Air Carbon dioxide Enrichment experiment conducted at the Thünen Institute in Braunschweig, Germany (Manderscheid et al., 2014). Data for ambient [CO2] and irrigated treatments were provided to the 21 models for calibrating plant traits, including weather, soil and management data as well as yield, grain number, above ground biomass, leaf area index, nitrogen concentration in biomass and grain, water use and soil water content. Models differed in their representation of carbon assimilation and evapotranspiration processes. The models reproduced the absence of yield response to elevated [CO2] under well-watered conditions, as well as the impact of water deficit at ambient [CO2], with 50% of models within a range of +/−1 Mg ha−1 around the mean. The bias of the median of the 21 models was less than 1 Mg ha−1. However under water deficit in one of the two years, the models captured only 30% of the exceptionally high [CO2] enhancement on yield observed. Furthermore the ensemble of models was unable to simulate the very low soil water content at anthesis and the increase of soil water and grain number brought about by the elevated [CO2] under dry conditions. Overall, we found models with explicit stomatal control on transpiration tended to perform better. Our results highlight the need for model improvement with respect to simulating transpirational water use and its impact on water status during the kernel-set phase.