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Supporting and regulating ecosystem services in cacao agroforestry systems

Mortimer Róisín, Saj Stéphane, David Christophe. 2018. Supporting and regulating ecosystem services in cacao agroforestry systems. AgroForestry Systems, 92 (6) : pp. 1639-1657.

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

Abstract : Cacao agroforestry systems (CAFS) can provide supporting services such as optimum light conditions for cacao growth, water and nutrient cycling and regulating services such as pest and disease control and climate regulation. This review considers recent literature on the manifestation of these services in CAFS around the world to provide an overview of scientific knowledge. Crown structures of associated trees can facilitate optimum light conditions for cacao growth, and provide water through vertical root segregation. Leaf litter fall and roots from associated species contribute to nutrient cycling. Both nitrogen-fixing and non-nitrogen-fixing species can provide nutrients to the cacao plant, though competition from certain species may limit phosphorus and potassium uptake. Pest and disease regulating services can arise through careful shade management to create a microclimate which reduces susceptibility of cacao to fungal diseases and sun-loving pests. All CAFS store carbon to varying degrees; those resembling original forest much more than simple two-species systems from which shade trees are removed after maturity of the cacao stand. CAFS also promotes biodiversity conservation depending on structure, management, and landscape arrangement, though not to the extent of natural forests. Research opportunities to increase provision of these services include optimal spatial arrangement for nutrient cycling and functional diversity as well as landscape connectivity for biodiversity conservation. Trade-offs between carbon storage, biodiversity, cacao yield and socio-economic resilience are presented, indicating that optimization of ecosystem services in CAFS requires consideration of interactions between all services, including socio-cultural and economic ones. (Résumé d'auteur)

Mots-clés Agrovoc : Theobroma cacao, Agroforesterie, Culture associée, Arbre d'ombrage, Biodiversité, adaptation aux changements climatiques, Changement climatique, Résistance aux maladies, Résistance à la sécheresse, services écosystémiques, séquestration du carbone, Fixation de l'azote, Arbre fixateur d'azote, Conservation des ressources, protection de la forêt, Déboisement

Mots-clés géographiques Agrovoc : Cameroun, Indonésie, Afrique occidentale, Amérique latine, Asie

Classification Agris : F08 - Cropping patterns and systems
K10 - Forestry production
F40 - Plant ecology
P01 - Nature conservation and land resources
P40 - Meteorology and climatology

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Mortimer Róisín, ISARA (FRA) - auteur correspondant
  • Saj Stéphane, CIRAD-PERSYST-UMR SYSTEM (FRA) ORCID: 0000-0001-5856-5459
  • David Christophe, ISARA (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/585509/)

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