Browsing by Author "Namirembe, Sara"

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    Agroforestry potential of Acacia senegal in the rangelands of luwero and Nakasongola districts
    (Uganda Journal of Agricultural Sciences, 2005) Agea, Jacob G.; Obua, Joseph; Namirembe, Sara; Buyinza, Mukadasi; Waiswa, Daniel
    Agroforestry potential of Acacia senegal in the rangelands of Luwero and Nakasongola districts was assessed between November 2002 and February 2003. Proportion of farmland under A. senegal was assessed by farm transect walks. A structured questionnaire and interviews were administered to collect information on the socio-economic profile of the farmers and constraints and opportunities to management of A. senegal. Questionnaire responses were entered in SPSS and logistic regression used to show the effects of socio-economic variables on people's willingness to plant and manage A. senegal trees on thei.r farm. The proportion of farm land under A. senegal and other tree species is 16.78 %. Acacia senegal is a source of firewood, fodder, fencing post, soiJ fertility improvement, medicine and gum. Education, farm size, gender, occupation and ownership of domestic animals significantly influenced the local people's willingness to plant and manage A. senegal trees. Therefore, local people need to be mobilised and educated on the agroforestry potential and conservation value of Acacia senegal.
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    Ecology and Conservation of Acacia senegal in the Rangelands of Luwero and Nakasongola Districts
    (Uganda Journal of Agricultural Sciences, 2005) Agea, Jacob G.; Obua, Joseph; Namirembe, Sara; Buyinza, Mukadasi; Waiswa, Daniel
    Ecology and conservation status of Acacia senegal in the rangelands of Luwero and Nakasongola Districts were assessed between November 2002 and February 2003. Sixty plots measuring 50 x 50 m were laid at 50 m intervals along six 1,000 m transects, and the diameter at breast height (DBH), of Acacia .fellegal trees measured. Each tree was visually assessed for physical damages as health indicators. Maturity class, terrain types and other trees growing together with Acacia senegal were identified and recorded. A structured questionnaire and interviews were used to collect data on the constr11ints and opportunities of conserving and managing Acacia Senegal. Data on the population structure, maturity class and stock density of Acacia senegal were analysed using MINITAB and DECORANA. The population structure of Acacia setiegal trees was unbalanced, with only 24% young trees (DBH < 8 em). Sixty five percent of trees were old (DBH > 8 em) and 84% physically damaged. Hills bad significantly (P < 0.05) higher tree density than plains and streams. Thirty-two tree species were recorded growing together with Acacia senegal in the rangelands and the most common were Acacia mel/ifera, Acacia hockii, Acacia seyaf, Combretum collillum and Conrhretum mol/e. Grazing livestock, bush fires, land tenure, tree tenure, pests and diseases were the major challenges to conservation of Acacia senegal in the rangelands. Collaborative conservation and management plan should be developed to conserve the species. Impacts of livestock grazing, settlement and farming on regeneration of Acacia senegal should be assessed before developing strategies for management and conservation.