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Key messages: Climate change adaptation for coffee and cocoa farming requires low cost and multipurpose solutions, such as shade trees. Selecting appropriate shade trees is paramount for maximizing tree-based ecosystem services while minimizing disservices. The shade tree advice tool presented h...


Wolf, Just van derGram, GilBukomeko, HanningtonMukasa, DavidGiller, OnnoKirabo, EnochAngebault, CharlesVaast, PhilippeAsare, RichardJassogne, Laurence T.P.[The Shade Tree Advice Tool]The Shade Tree Advice Tool

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, PhilippeHoffmann, M.P.Asare, R.Jassogne, Laurence T.P.Asten, Piet J.A. vanRotter, Reimund P.Graefe, S.[Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun]Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun

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, DanielNeergaard, Andreas deVaast, PhilippeSuárez-Villanueva, VíctorOelofse, MylesRosenstock, Todd S.[Multi-scale measurements show limited soil greenhouse gas emissions in Kenyan smallholder coffee-dairy systems]Multi-scale measurements show limited soil greenhouse gas emissions in Kenyan smallholder coffee-dairy systems

Vaast, PhilippeRachmat, MuliaNguyen Mai PhuongDuong Minh TuanTran Ha MyNguyen Thi VanVu Hong TrangNguyen Minh PhuongHoang Quoc Viet[Tài liệu hướng dẫn xây dựng và quản lý hệ thống nông lâm kết hợp cho cà phê]Tài liệu hướng dẫn xây dựng và quản lý hệ thống nông lâm kết hợp cho cà phê

Abdulai, A.Jassogne, Laurence T.P.Muilerman, SanderAsare, R.Läderach, PeterAsten, Piet J.A. vanGraefe, S.Vaast, Philippe[Evaluation of yield gap and production factor in cocoa systems along a climatic gradient in Ghana]Evaluation of yield gap and production factor in cocoa systems along a climatic gradient in Ghana

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, HanningtonJassogne, Laurence T.P.Kagezi H., GodfreyMukasa, DavidVaast, Philippe[Influence of shaded systems on Xylosandrus compactus infestation in Robusta coffee along a rainfall gradient in Uganda]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, HanningtonJassogne, Laurence T.P.Tumwebaze, Susan BalabaEilu, GeraldVaast, 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]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, DanielVaast, PhilippeOelofse, MylesNeergaard, Andreas deAlbrecht, AlainRosenstock, Todd S.[Farm-scale greenhouse gas balances, hotspots and uncertainties in smallholder crop-livestock systems in Central Kenya]Farm-scale greenhouse gas balances, hotspots and uncertainties in smallholder crop-livestock systems in Central Kenya

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, IssakaJassogne, Laurence T.P.Graefe, SophieAsare, RichardAsten, Piet J.A. vanLäderach, PeterVaast, Philippe[Characterization of cocoa production, income diversification and shade tree management along a climate gradient in Ghana]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, GilVaast, PhilippeWolf, Just van derJassogne, Laurence T.P.[Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda]Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda

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