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Browsing Conferences and Workshops by Author "Bonabana-Wabbi, J."
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ItemInfluence of mountainous ecosystems in the production of Arabica coffee(RUFORUM, 2016) Cherukut, S. ; Karungi, J. ; Tumuhairwe, J.B. ; Bonabana-Wabbi, J.The aim of this study is to gain an understanding of how land use intensity in high altitude areas and soil management influences abundance and diversity of natural enemies, including pests of coffee and influences on microclimate and soil characteristics of coffee systems. Further it aims at establishing the relationship between the delivery of ecosystem services and coffee productivity. The study will generate knowledge for better understanding of coffee agro-ecosystems for improved productivity amidst increasing population pressure, climate variability, declining soil fertility, and the range of pests and diseases in the highly vulnerable landscapes on the slopes of Mt Elgon in eastern Uganda. Recommendations will be made on systems with high potential for natural pest and disease control, climate change mitigation, improved soil characteristics and microclimate control. To achieve this, fixed factors namely; altitude, land use intensity, soil fertility management type, and the interaction between the factors will be included in a generalized linear model with species richness, diversity and abundance of agents of ecosystem services (pest control agents, decomposers) in coffee fields, and with coffee yield parameters as dependent variables in the analyses of variance. For tests to establish the relationship between species richness and abundance of the agents of ecosystem services and the environmental variables and/or yield, multivariate analysis tools of Principal Component Analysis and Discriminant Analysis will be used.
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ItemSocio-economic drivers of ecosystem service provision(Regional Universities Forum for Capacity Building in Agriculture, 2016-10) Ssengabi, M. ; Bonabana-Wabbi, J. ; Mugonola, B.Land degradation is one of the major problems affecting not only Uganda but the whole of Sub Saharan Africa (SSA). This challenge is partly due to high population densities and overexploitation of natural resources. Farmers in SSA have now resorted to clearing of the forests in a bid to look for land for settlement, energy requirements and growing of crops to feed the ever increasing population. Options that are left to the farmers are either to use intensive land use systems or depend on the ecosystem services that are provided by the diversified land use systems. As one moves away from diversified to simplified land use systems, ecosystem services may reduce. Since farmers always go for that option that maximize their benefit, decisions can be based on the attributes of the land use systems but more so, on the socio-economic factors that surround them. Such factors for example include land tenure, farmer demographic characteristics, and farmer’s income, among others. Literature suggests that there are mixed factors that influence land use intensities in different parts of the world. This study will identify the socio-economic factors that influence land use decisions in ecosystem services provision in Mt Elgon region of Uganda with a view to expanding the knowledge base as well as guiding decision makers in planning activities.