Browsing by Author "Buyinza, M."
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Item Adoption of On-Farm Plantation Forestry by Smallholder Farmers in Uganda(Journal of Sustainable Development, 2017) Kiyingi, I.; Edriss, A.; Phiri, M.; Buyinza, M.; Agaba, H.The study assessed the factors influencing adoption and intensity of adoption of on-farm plantation forestry by comparing results from a censored Tobit model and a Double-hurdle model. Analysis indicated that determinants of adoption and intensity of adoption of on-farm plantation forestry are different, thus indicating a double-hurdle process. Results from the double-hurdle model indicated that size of landholding, secondary school education, forestry skills training, extension services and farmers’ perceptions significantly explain the variation in the decision to invest in on-farm plantation forestry. On the other hand, gender of household head and size of landholding influenced the intensity of adoption. This study highlights some of the areas that should be considered in developing adoption strategies for on-farm plantation forestry. It also highlights the importance of farmers’ perceptions in influencing adoption of farm forestry. The study suggests that since the factors influencing adoption and intensity of farm forestry adoption are made separately, it is important that both stages are considered in developing adoption strategies for farm forestry.Item The Effect of Land Use on Carbon Stocks and Implications for Climate Variability on the Slopes of Mount Elgon, Eastern Uganda(International Journal of Regional Development, 2017) Mugagga, F.; Nagasha, B.; Barasa, B.; Buyinza, M.We investigated the impact of land use change on carbon stocks and its implications to climate variability in Mountain environments. Remotely sensed biophysical data was used to determine the extent of land use change over the last two decades. Land uses were stratified thus; forest under restoration, woodlots/plantations, agricultural land, regenerating forest and intact forest. Carbon in above and below ground biomass was measured using the allometric equations, whilst soil samples were analyzed for total carbon by the dry combustion method. The differences in carbon stocks in various land uses were analyzed using Analysis of variance (ANOVA). Top soil layers (0-10cm) were found to store more carbon than the deeper ones. Furthermore, intact forest stored more soil organic carbon (> 45t/ha) compared to other land uses with the least in land under agriculture (about 1.5 t/ha). The decimation of land uses with high carbon stocks was noted to reduce the potential of Mt. Elgon as a carbon sink. This therefore calls for the scaling out and up of forest restoration programmes in and around mountain environments, whose success will depend on the active participation of all stakeholders including, Uganda Wildlife Authority (UWA), local communities, politicians and leaders.Item Farmers’ Adoption of Rotational Woodlot Technology in Kigorobya Sub-County of Hoima District, Western Uganda(Ethnobotany Research & Applications, 2008) Buyinza, M.; Banana, A.Y.; Nabanoga, G.; Ntakimanye, A.This paper evaluates, using logistic and multiple regression analyses, the socio-economic factors that influence farmers’ decisions to adopt rotational woodlot technology in the farming systems of Uganda, based on a household survey carried out between May and December 2004, involving 120 farmers in Kigorobya sub-county, Hoima district. The analyses demonstrate that farmers make decisions about woodlot technology based on the household and field characteristics. The factors that significantly influenced the decision to adopt rotational woodlot technology included: gender, tree tenure security, seed supply, contact with extension and research agencies, soil erosion index, size of landholding, fuelwood scarcity, and main source of family income. To promote greater adoption of rotational woodlot technology, particular attention should be placed on the use of appropriate socioeconomic characterization, to better target technologies to areas with greater adoption potential.Item Land use changes on the slopes of Mount Elgon and the implications for the occurrence of landslides(Catena, 2012) Mugagga, F.; Kakembo, V.; Buyinza, M.A reconstruction of land use changes and the implications thereof for landslide occurrence on critical slopes of Mount Elgon in Eastern Uganda were undertaken. Aerial photographs taken in 1960 formed the benchmark for the analysis of respective land use changes between 1995 and 2006, using 30 m Landsat TM and 20 m SPOT MS images. Landslide sites were mapped using a MobileMapper, and terrain parameters were derived using a 15 m Digital Elevation Model. A supervised classification approach was employed to generate land-cover maps, from which the areas of three land-cover classes (agricultural fields, woodlands and forests) were calculated. A post-classification comparison change-detection technique revealed different trends in land-cover change between the periods 1960–1995 and 1995–2006. Whereas there were minimal land use changes between 1960 and 1995, the period 1995–2006 marked a considerable loss of woodlands and forest cover, particularly on steep concave slopes (36°–58°) of the National Park. The encroachment onto the critical slopes was noted to have induced a series of shallow and deep landslides in the area. All the mapped landslides were noted to lie on steep concave slopes of a northerly orientation, which had been opened up for cultivation. Deforestation and cultivation alter the soil hydrological conditions on steep concave slopes, rendering them susceptible to saturation. This may trigger debris flows during rainfall events. There is a need to restore forest cover on the fragile steep slopes and restrain local communities from opening up new areas for cultivation on critical slopes, particularly within the protected area.Item Quantification Of Monetary Losses Due To Illegal Pitsawing In Budongo Forest, Uganda(International Forestry Review, 2007) Ssembajwe, W. Gombya; Buyinza, M.; Kakuru, O.V.The paper examines the financial implications of both abandoned and destroyed wood by illegal pitsawers in Budongo Forest, Uganda. It also compares the intensity of pitsawing in the Strict Nature Reserve (SNR) and the forest edge as well as the species and diameter classes of trees most affected. The total wastage of round wood was found to be 0.218 m3/ha/yr and 0.098 m3/ha/yr in the SNR and forest edge respectively. This is about a third of the mean annual increment per hectare per year for tropical moist forests. The present value of monetary losses in the SNR and forest edge were UGX 30 000 /ha/yr and UGX 17 814/ha/year respectively; with Mahogany species as the most affected. There was no significant loss of wood between the SNR and the forest edge and no significant diameter variations in the illegally pitsawn trees within and between the different pitsawing sites. More trees were pitsawn at the forest edge as compared to the SNR, although a larger volume of wood was harvested in the SNR. There is a need to enforce effective forest regulations governing SNRs; and foster a functional working relationship between the National Forestry Authority and local communities around the forest in the management of the SNR.Item Socio-Economic Determinants of Farmers’ Adoption of Rotational Woodlot Technology in Kigorobya Sub-County, Hoima District, Uganda(South African Journal of Agricultural Extension, 2008) Buyinza, M.; Banana, A. Y.; G., Nabanoga; Ntakimye, A.Understanding the factors affecting farmers’ adoption of rotational woodlot technologies is critical to the success of implementing tree planting programmes. This paper evaluates, using logistic and multiple regression analyses, the socioeconomic factors that influence farmers’ decisions to adopt rotational woodlot technology in the farming systems of Uganda, based on a survey of 120 farmers in Kigorobya subcounty, Hoima district. The analyses demonstrate that farmers make decisions about woodlot technology based on household and field characteristics. The factors that significantly influenced adoption decisions included: gender, tree tenure security, seed supply, contact with extension and research agencies, soil erosion index, size of landholding, fuelwood scarcity, and main source of family income. To promote greater adoption of rotational woodlot technology, particular attention should be placed on the use of appropriate socioeconomic characterization, to better target technologies to areas with greater adoption potential.