Cocoa agroforestry is perceived as potential adaptation strategy to sub-optimal or adverse environmental conditions such as drought. We tested this strategy over wet, dry and extremely dry periods comparing cocoa in full sun with agroforestry systems: shaded by (i) a leguminous tree species, Albi...
Abdulai, I.
,
Vaast, Philippe
,
Hoffmann, M.P.
,
Asare, R.
,
Jassogne, Laurence T.P.
,
Asten, Piet J.A. van
,
Rotter, Reimund P.
,
Graefe, S.
,
[Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun]
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Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun
This paper presents the main features of a unique decision-support tool developed for selecting tree species in coffee and cocoa agroforestry systems. This tool aims at assisting in the selection of appropriate shade trees taking into account local conditions as well as needs and preferences of s...
Wolf, J. van der
,
Jassogne, Laurence T.P.
,
Gram, G.
,
Vaast, Philippe
,
[Turning local knowledge on agroforestry into an online decision-support tool for tree selection in smallholders' farms]
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Turning local knowledge on agroforestry into an online decision-support tool for tree selection in smallholders' farms
Efforts have been made in recent years to improve knowledge about soil greenhouse gas (GHG) fluxes from sub-Saharan Africa. However, data on soil GHG emissions from smallholder coffee-dairy systems have not hitherto been measured experimentally. This study aimed to quantify soil GHG emissions at ...
Ortiz Gonzalo, Daniel
,
Neergaard, Andreas de
,
Vaast, Philippe
,
Suárez-Villanueva, Víctor
,
Oelofse, Myles
,
Rosenstock, Todd S.
,
[Multi-scale measurements show limited soil greenhouse gas emissions in Kenyan smallholder coffee-dairy systems]
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Multi-scale measurements show limited soil greenhouse gas emissions in Kenyan smallholder coffee-dairy systems
The new approaches advocated by the conservation community to integrate conservation and livelihood development now explicitly address landscape mosaics composed of agricultural and forested land rather than only protected areas and largely intact forests. We refer specifically to a call by Harve...
García, C.A.
,
Bhagwat, S.A.
,
Ghazoul, J.
,
Nath, C.D.
,
Nanaya, K.M.
,
Kushalappa, C.G.
,
Raghuramulu, Y.
,
Nasi, Robert
,
Vaast, Philippe
,
[Biodiversity conservation in agricultural landscapes: challenges and opportunities of coffee agroforests in the Western Ghats, India]
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Biodiversity conservation in agricultural landscapes: challenges and opportunities of coffee agroforests in the Western Ghats, India
We investigated the relationship between characteristics of coffee shade systems and coffee pest infestation by the black coffee twig borer Xylosandrus compactus Eichhoff. The pest deprives Uganda of $40 millions annually, yet its control remains inadequate.
The present study considered three ra...
Bukomeko, Hannington
,
Jassogne, Laurence T.P.
,
Kagezi H., Godfrey
,
Mukasa, David
,
Vaast, Philippe
,
[Influence of shaded systems on Xylosandrus compactus infestation in Robusta coffee along a rainfall gradient in Uganda]
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Influence of shaded systems on Xylosandrus compactus infestation in Robusta coffee along a rainfall gradient in Uganda
Coffee agroforestry systems deliver ecosystem services (ES) critical for rural livelihoods like food but also disservices that constrain livelihoods like fostering coffee-pests. Since such ES are tree-based, maximizing ES and limiting constraints requires knowledge on optimizing on-farm tree comp...
Bukomeko, Hannington
,
Jassogne, Laurence T.P.
,
Tumwebaze, Susan Balaba
,
Eilu, Gerald
,
Vaast, Philippe
,
[Integrating local knowledge with tree diversity analyses to optimize on-farm tree species composition for ecosystem service delivery in coffee agroforestry systems of Uganda]
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Integrating local knowledge with tree diversity analyses to optimize on-farm tree species composition for ecosystem service delivery in coffee agroforestry systems of Uganda
Climate-smart approaches have gained momentum in tropical, agricultural development. However, to date, few studies have examined whole-farm greenhouse gas (GHG) balances in smallholder crop-livestock systems. This study aimed to quantify GHG balances at farm-scale, identify GHG hotspots and asses...
Ortiz Gonzalo, Daniel
,
Vaast, Philippe
,
Oelofse, Myles
,
Neergaard, Andreas de
,
Albrecht, Alain
,
Rosenstock, Todd S.
,
[Farm-scale greenhouse gas balances, hotspots and uncertainties in smallholder crop-livestock systems in Central Kenya]
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Farm-scale greenhouse gas balances, hotspots and uncertainties in smallholder crop-livestock systems in Central Kenya
Shade trees are an integral part of most cocoa growing systems across the world. This study assesses farmers’ local knowledge of shade trees at two locations in Ghana with different climatic conditions and vulnerability to climate change. Akumadan is located in the northern dry part of the cocoa ...
Graefe, S.
,
Meyer-Sand, L.F.
,
Chauvette, K.
,
Abdulai, I.
,
Jassogne, Laurence T.P.
,
Vaast, Philippe
,
Asare, R.
,
[Evaluating farmers' knowledge of shade trees in different cocoa agro-ecological zones in Ghana]
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Evaluating farmers' knowledge of shade trees in different cocoa agro-ecological zones in Ghana
Reduced climatic suitability due to climate change in cocoa growing regions of Ghana is expected in the coming decades. This threatens farmers’ livelihood and the cocoa sector. Climate change adaptation requires an improved understanding of existing cocoa production systems and farmers’ coping st...
Abdulai, Issaka
,
Jassogne, Laurence T.P.
,
Graefe, Sophie
,
Asare, Richard
,
Asten, Piet J.A. van
,
Läderach, Peter
,
Vaast, Philippe
,
[Characterization of cocoa production, income diversification and shade tree management along a climate gradient in Ghana]
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Characterization of cocoa production, income diversification and shade tree management along a climate gradient in Ghana
Arabica coffee (Coffea arabica) is economically important for many smallholder farmers in the Mount Elgon region of East Uganda, but its production is increasingly threatened by climate change. However, ecosystem services (ES) provided by companion trees in coffee agroforestry systems (AFS) can h...
Gram, Gil
,
Vaast, Philippe
,
Wolf, Just van der
,
Jassogne, Laurence T.P.
,
[Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda]
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Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda