Shade canopy density variables in cocoa and coffee agroforestry systems

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dc.creatorSomarriba, Eduardo
dc.creatorSaj, Stephane
dc.creatorOrozco‑Aguilar, Luis
dc.creatorSomarriba, Aurelio
dc.creatorRapidel, Bruno
dc.date2024-01-08T16:24:12Z
dc.date2024-01-08T16:24:12Z
dc.date2023-12-18
dc.date.accessioned2026-06-09T02:12:33Z
dc.descriptionAn estimated 3.4 million hectares of cocoa and 9.7 million hectares of coffee are cultivated, globally, under shade trees, i.e. in agroforestry systems. Shade canopies are characterized in terms of tree density (N, trees ha−1), tree basal area (G, m2ha−1) and percent canopy cover (%Cov). N, G and %Cov are named shade canopy density variables (SCDV). The use of these SCDV has two important limitations: (1) different combinations of values of the three SCDV variables generate very different shade tree stands (hence very different shading levels), and (2) Additional factors modify shading under shade canopies with constant SCDV values.This article uses the software ShadeMotion (www.shade motion. net) to show how 24 different, simple, even-sized, mono-layered, Cordia alliodora shade canopies with constant N, G and %Cov display significantly different shade levels and temporal patterns of shading depending on tree stem and crown diameter ratios, tree height, spatial planting configurations (square, random and alleys) and leaf fall patterns. A minimum set of variables capable of providing a more accurate description of the shading characteristics of a cocoa or coffee shade canopy is proposed. Our findings can shed light on the current debate on the pros and cons of the definitions of cocoa agroforestry used by chocolate and certification companies, governments, non-governmental organizations, and donors, especially in West and Central Africa. In this article, emphasis is given to cocoa, but the analysis, results and conclusions are equally applicable to coffee agroforestry systems.
dc.format17 páginas
dc.formatapplication/pdf
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/12608
dc.identifierrestrictedAccess
dc.identifier.urihttp://hdl.handle.net/123456789/3397
dc.languageen
dc.publisherSpringer Nature
dc.relationAgroforestry Systems
dc.relationhttps://doi.org/10.1007/s10457-023-00931-2
dc.subjectÁrboles de sombra||shade trees||árvore de sombra||arbre d'ombrage
dc.subjectCordia alliodora||Cordia alliodora||Cordia alliodora||Cordia alliodora
dc.subjectárea basal||basal area||área basal||surface terrière
dc.subjectCubierta de copas||canopy||coberto arbóreo ou arbustivo||couvert
dc.subjectShade tree density
dc.subjectSpatial planting patterns
dc.subjectMonthly leaf fall pattern
dc.subjectSede Central
dc.subjectODS 15 - Vida de ecosistemas terrestres
dc.titleShade canopy density variables in cocoa and coffee agroforestry systems
dc.typeArtículo

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