Coffee agroforestry systems in Central America: II. Development of a simple process-based model and preliminary results

Van Oijen Marcel, Dauzat Jean, Harmand Jean-Michel, Lawson Gerry, Vaast Philippe. 2010. Coffee agroforestry systems in Central America: II. Development of a simple process-based model and preliminary results. AgroForestry Systems, 80 (3) : pp. 361-378.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q2, Sujet : FORESTRY / Quartile : Q2, Sujet : AGRONOMY

Abstract : Research on coffee agroforestry systems in Central America has identified various environmental factors, management strategies and plant characteristics that affect growth, yield and the impact of the systems on the environment. Much of this literature is not quantitative, and it remains difficult to optimise growing area selection, shade tree use and management. To assist in this optimisation we developed a simple dynamic model of coffee agroforestry systems. The model includes the physiology of vegetative and reproductive growth of coffee plants, and its response to different growing conditions. This is integrated into a plot-scale model of coffee and shade tree growth which includes competition for light, water and nutrients and allows for management treatments such as spacing, thinning, pruning and fertilising. Because of the limited availability of quantitative information, model parameterisation remains fraught with uncertainty, but model behaviour seems consistent with observations. We show examples of how the model can be used to examine tradeoffs between increasing coffee and tree productivity, and between maximising productivity and limiting the impact of the system on the environment. (Résumé d'auteur)

Mots-clés Agrovoc : Coffea, Agroforesterie, Rendement des cultures, Évaluation de l'impact, Impact sur l'environnement, Modélisation des cultures, Facteur climatique, Facteur édaphique, Facteur du milieu, Croissance, Reproduction, Arbre d'ombrage, Agroécosystème, Modèle mathématique

Mots-clés géographiques Agrovoc : Amérique centrale, Costa Rica, Nicaragua, Guatemala

Classification Agris : F62 - Plant physiology - Growth and development
F08 - Cropping patterns and systems
U10 - Computer science, mathematics and statistics

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Van Oijen Marcel, CEH (GBR)
  • Dauzat Jean, CIRAD-BIOS-UMR AMAP (FRA)
  • Harmand Jean-Michel, CIRAD-PERSYST-UPR Ecosystèmes de plantations (FRA) ORCID: 0000-0002-8065-106X
  • Lawson Gerry, NERC (GBR)
  • Vaast Philippe, CIRAD-PERSYST-UPR Ecosystèmes de plantations (IND)

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