Hi-sAFe: A 3D Agroforestry Model for Integrating Dynamic Tree–Crop Interactions
2019
Dupraz, Christian | Wolz, Kevin, J | Lecomte, Isabelle | Talbot, Grégoire | Vincent, Grégoire | Mulia, Rachmat | Bussière, François | Ozier-Lafontaine, Harry | Andrianarisoa, Kasaina Sitraka | Jackson, Nick | Lawson, Gerry | Dones, Nicolas, N. | Sinoquet, Hervé | Lusiana, Betha | Harja, Degi | Domenicano, Susy | Reyes, Francesco | Gosme, Marie | Noordwijk, Meine, Van | Fonctionnement et conduite des systèmes de culture tropicaux et méditerranéens (UMR SYSTEM) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM) ; Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [Occitanie]) | SE Asia ; World Agroforestry Centre | World Agroforestry Center [CGIAR, Kenya] (ICRAF) ; Consultative Group on International Agricultural Research [CGIAR] (CGIAR) | Agrosystèmes tropicaux (ASTRO) ; Institut National de la Recherche Agronomique (INRA) | Centre for Ecology & Hydrology - Bush Estate ; Natural Environment Research Council (NERC) | Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant (PIAF) ; Institut National de la Recherche Agronomique (INRA)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]) | Centre d'Etude de la Forêt (Faculté de foresterie, de géographie et de géomatique) ; Université Laval [Québec] (ULaval) | European Project: 613520,FP7-KBBE-2013-7-single-stage,FP7-KBBE-2013-7-single-stage,AGFORWARD(2014)
International audience
Mostrar más [+] Menos [-]Inglés. Agroforestry, the intentional integration of trees with crops and/or livestock, can lead to multiple economic and ecological benefits compared to trees and crops/livestock grown separately. Field experimentation has been the primary approach to understanding the tree-crop interactions inherent in agroforestry. However, the number of field experiments has been limited by slow tree maturation and difficulty in obtaining consistent funding. Models have the potential to overcome these hurdles and rapidly advance understanding of agroforestry systems. Hi-sAFe is a mechanistic, biophysical model designed to explore the interactions within agroforestry systems that mix trees with crops. The model couples the pre-existing STICS crop model to a new tree model that includes several plasticity mechanisms responsive to tree-tree and tree-crop competition for light, water, and nitrogen. Monoculture crop and tree systems can also be simulated, enabling calculation of the land equivalent ratio. The model's 3D and spatially explicit form is key for accurately representing many competition and facilitation processes. Hi-sAFe is a novel tool for exploring agroforestry designs (e.g., tree spacing, crop type, tree row orientation), management strategies (e.g., thinning, branch pruning, root pruning, fertilization, irrigation), and responses to environmental variation (e.g., latitude, climate change, soil depth, soil structure and fertility, fluctuating water table). By improving our understanding of the complex interactions within agroforestry systems, Hi-sAFe can ultimately facilitate adoption of agroforestry as a sustainable land-use practice.
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Información bibliográfica
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