Olivier Deheuvels

Olivier Deheuvels
CATIE - Centro Agronómico Tropical de Investigación y Enseñanza | CATIE · Research and Development Division

PhD

About

44
Publications
28,416
Reads
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977
Citations
Citations since 2016
7 Research Items
766 Citations
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2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Education
November 2007 - November 2011
L'institut Agro | Montpellier SupAgro
Field of study
  • Agro-ecology
September 1996 - September 1998
AgroParisTech
Field of study
  • Compared Agriculture and Development
September 1994 - September 1996

Publications

Publications (44)
Article
Full-text available
The demand for cocoa has increased over the past years following the growth of cocoa-based products linked to the rise in living standard in highly populated countries. Cacao industry is therefore currently facing the dilemma of producing more cacao while ensuring its sustainability. Cacao monocrops and agroforestry systems (AFS) are two contrastin...
Article
Farmers constantly adapt cropping systems to meet their needs. Cocoa farming is frequently associated with low incomes and little access to technical innovations for the small farmers and their families who are responsible for most cocoa production around the world. A collaborative approach, including different professionals working in the Dominica...
Article
Full-text available
Knowledge is lacking on the effects of associated crops on cocoa productivity in complex cocoa-based agroforestry systems. Through a generalized linear mixed model, we analyzed the influence of (i) the density and (ii) the height of associated species on cocoa tree productivity along a distance gradient of 0 to 5 m between cocoa trees and associate...
Article
Humanity is facing a rapid decline in global biodiversity, caused mainly by tropical deforestation through industrial and smallholder agriculture. However, smallholder agriculture landscapes host areas containing home gardens and other agroforestry systems (AFS) proved highly relevant for soil and biodiversity conservation. The positive interaction...
Article
Full-text available
Cocoa-based agroforestry systems (AFS) provide a variety of products, either sold or self-consumed. The choice of crop species and planting density in cocoa AFS has an impact on the quantities and the economic value of the agricultural products sold and consumed by producers. We characterized 140 cocoa AFS in three main production areas in the Domi...
Chapter
Agroforestry should be a major climate-smart agriculture option as it combines sustainable production with adaptation and mitigation of climate change. In recent decades, cocoa and coffee cultivation have been responsible for the loss of more than 30 million ha of primary and secondary forests, and thus for increased greenhouse gas emissions. Howev...
Technical Report
Full-text available
En este estudio de línea de base del Proyecto Cacao Centroamérica (PCC) se entrevistaron y evaluaron las fincas de 1500 familias cacaoteras en seis países de la región (Panamá, Costa Rica, Nicaragua, Honduras, Guatemala, Belice), a razón de 250 familias por país. El estudio abarcó ocho grandes temas: 1) la caracterización biofísica y política de lo...
Article
Full-text available
In the humid tropics, the rapid rate of deforestation has resulted in a race to protect remaining forest patches that are increasingly isolated within a rapidly expanding agricultural matrix. In these landscapes, a significant area consists of complex agro-forestry systems with high structural and functional plant diversity, providing critical reso...
Article
Full-text available
While the potential of agroforestry products to contribute to rural livelihoods is well-recognized, the quantification of their yields, incomes, and value for domestic consumption (VDC) and knowledge about their relationships with biodiversity are still scarce. This information is crucial for choosing the best strategy for growing cocoa in tropical...
Article
Full-text available
Cocoa–timber systems have been proposed as viable alternative for simultaneously satisfying the livelihood needs of the farmers (in terms of production of cocoa and other goods for family use or sale) while improving the capacity of the cocoa agroforestry system to provide other ecosystem services at both the plot and landscape level. In this paper...
Article
Full-text available
In order to meet growing demand for chocolate products, numerous initiatives have been launched over the last 10 years with a view to increasing cocoa production. These initiatives continue to promote the input-intensive model advocated since the 1960s, even though this model has reached its agronomic, socio-economic, and environmental limits. Henc...
Article
Full-text available
Vegetation composition and plant spatial structure affect disease intensity through resource and microclimatic variation effects. The aim of this study was to evaluate the independent effect and relative importance of host composition and plant spatial structure variables in explaining disease intensity at the plot scale. For that purpose, frosty p...
Article
The importance of the spatial organisation of individuals in explaining species coexistence within a community is widely recognised. However, few analyses of spatial structure have been performed on tropical agroforests.The main objective of this study was to highlight the links between spatial organisation of shade trees on the one hand, and shade...
Article
Full-text available
The cocoa tree (Theobroma cacao L.) is cultivated typically in agroforestry systems in close association with a rich list of tree species and other useful plants on the same plot. Cocoa based agroforestry systems are credited for stocking significant amounts of carbon and hence have the potential to mitigate climate change. Since cocoa yields decre...
Article
Full-text available
We analyzed the relationship of pollinating insects Ceratopogonidae (Atrichopogon, Dasyhelea, Forcipomyia) with shade canopy and land cover characteristics of cocoa agroforestry systems (AFS) for cocoa and cocoa production potential through the action of flowers pollinated naturally by pollinators. Pollinators were found in 60% of cocoa-AFS evaluat...
Article
Full-text available
Floristic composition and structure of cacao orchards and forest patches in Waslala, nicaragua We studied the botanical and structural composition of the woody vegetation present in 36 cocoa-AFS and four forest patches located on the Nicaraguan Atlantic slope. We set up a 1000 square meter plot (20x50 m) where we identified, counted and measured al...
Article
Full-text available
La producción de cacao en Centroamérica es parte de la cultura ancestral de más de 20 mil familias pobres (Chen y Ravallion 2007) de varias etnias indígenas (mayas quekchí, quiché y mopán; mayangna, bribri, cabécar, ngöbe), afrocaribeños y mestizos. La producción sostenible de cacao es una alternativa valiosa para ayudar a estas familias a salir de...
Article
Full-text available
The cocoa tree (Theobroma cacao L.) is cultivated typically in agroforestry systems in close association with a rich list of tree species and other useful plants on the same plot. Cocoa based agroforestry systems are credited for stocking significant amounts of carbon and hence have the potential to mitigate climate change. Since cocoa yields decre...
Technical Report
Full-text available
Los servicios ambientales* son los beneficios que pueden dar los bosques, cultivos y otros usos de la tierra para las familias y sus fincas, comunidades, paisajes o para el ambiente mundial en general. Los servicios ambientales pueden ser: Servicios de producción: todos los alimentos, medicinas, fibras, madera y otros materiales que se producen en...
Article
Full-text available
Soil quality or health is a fuzzy concept that has been vigorously criticized due to the extreme variability of soil and the difficulty of linking soil indicators to soil functions and sustainability. In most soil quality studies some obvious factors or typologies are used as a basis to select the “best indicators” of soil quality, i.e. those that...
Article
In the humid tropics, the remaining forest patches are increasingly isolated within an expanding agricultural matrix. There, a significant area consists of complex agroforestry systems with high structural and functional plant diversity. These anthropogenic habitats are gaining increasing conservation value as deforestation progresses. Cocoa-based...
Technical Report
Full-text available
En el Proyecto Cacao Centroamérica (PCC) del CATIE (Centro Agronómico Tropical de Investigación y Enseñanza), trabajamos para incrementar la productividad, diversidad y valor financiero y ambiental de los cacaotales de al menos 6.000 familias centroamericanas. Creamos alianzas con otros socios de la región para mejorar, junto con las familias produ...
Technical Report
Full-text available
The Central American Cacao Project (PCC) at CATIE (Tropical Agricultural Research and Higher Education Center) aims to increase the productivity, diversity and financial and environmental value of the cacao plantations of at least 6,000 Central American families. Working closely with cacao farming families, the Project creates alliances with other...
Technical Report
Full-text available
The Central American Cacao Project (PCC) at CATIE (Tropical Agricultural Research and Higher Education Center) aims to increase the productivity, diversity and financial and environmental value of the cacao plantations of at least 6,000 Central American families. Working closely with cacao farming families, the Project creates alliances with other...
Technical Report
Full-text available
En el Proyecto Cacao Centroamérica (PCC) del CATIE (Centro Agronómico Tropical de Investigación y Enseñanza), trabajamos para incrementar la productividad, diversidad y valor financiero y ambiental de los cacaotales de al menos 6.000 familias centroamericanas. Creamos alianzas con otros socios de la región para mejorar, junto con las familias produ...
Technical Report
Full-text available
The Central American Cacao Project (PCC) at CATIE (Tropical Agricultural Research and Higher Education Center) aims to increase the productivity, diversity and financial and environmental value of the cacao plantations of at least 6,000 Central American families. Working closely with cacao farming families, the Project creates alliances with other...
Book
Agronomy is a scientific discipline whose main object of study is the cultivated field. It usually includes the biophysical functioning of the field seen as an agrosystem and the reasoning of actions applied on this agrosystem by the farmer. This second aspect leads to an up-scaling process towards wider levels of organization such as farm and land...
Book
Full-text available
Agroforestry systems are generally characterized by several parameters, such as the number of plant species, the density of each species, or various biodiversity indexes. Many systems have a main crop, like coffee or cacao. In such systems, the ratio of the number of trees of the main crop to the total number of trees (the main crop plus the associ...
Chapter
Full-text available
Olympe is a software developed by INRA, IAMM and CIRAD to model and simulate cropping and farming systems functioning. As it is based on economic analysis that considers contextual components, it enables to identify and model one or several farmers’ strategies and trajectories. Prospective analysis is also possible, including prices volatility or c...
Book
Full-text available
Cet ouvrage est divisé en trois parties traitant de la modélisation de systèmes de culture et de production ainsi que d’ensembles d’exploitations par l'outil Olympe. A travers neuf cas d'études réalisés en France, en Indonésie et dans plusieurs pays d’Afrique du Nord (Algérie, Tunisie), de l’Ouest (Côte d’Ivoire, Togo) et du centre (Cameroun), il p...
Conference Paper
Full-text available
Agricultural practices in cocoa cropping systems have been studied worldwide with a strong focus on production. Most of the attempts to improve cocoa production have been made through technical practice improvement only focused on the cocoa tree itself or the cocoa tree population within the plot. However, few approaches actually consider the cocoa...
Book
Full-text available
Olympe est un outil de modélisation de l'exploitation agricole a été développé par L’Inra/Esr, en collaboration avec l’Iam-Montpellier et le Cirad. la modélisation permet de mesurer l’impact à long terme de décisions prises sur les cultures pérennes ou l’élevage, dont les contraintes sont fondamen-talement différentes des cultures annuelles. Une mo...
Conference Paper
Full-text available
Farming systems modelling provides reliable quantitative economic data on the different sources of income (from farming and off-farm activities), net return to investment, return to labour, and margins per activity. The Olympe software was developed by INRA/ESR, IAMM and CIRAD to model and simulate how farming systems function. The model is linked...
Article
‘Nacional’ cocoa from Ecuador is a genetic group acknowledged for its ‘Arriba’ floral flavour, which has partly been lost due to the introduction of other more productive varieties. Between 1996 and 2000, 115 Nacional cocoa trees were identified by high yield, resistance to diseases and intense floral flavour, and reproduced by grafting. Some of th...
Article
Full-text available
RESUME Le verger cacaoyer ivoirien entre actuellement dans une phase de vieillissement consécutive aux importantes vagues d'extensions sur abattis-brûlis des années 1970-80. Or les travaux décrivant ce phénomène sont peu nombreux et traitent d'aires géographiques souvent restreintes. Dans le cadre d'un Projet de recherche-action pour la régénératio...

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