Journal Articles

Permanent URI for this collectionhttp://localhost:4000/handle/20.500.12504/47

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Browsing Journal Articles by Author "Geofrey, Gabiri"

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    Assessment of hydro-pedological characteristics at medium-sized landslide sites in Manafwa catchment, Mount Elgon, Uganda
    (Hydrological Sciences Journal, 2024-05-17) Moses, Kutosi; Yazidhi, Bamutaze; Bob, R. Nakileza; Yeeko, Kisira; Geofrey, Gabiri
    Though strongly linked to landslides, hydro-pedological characteristics are inadequately investigated in the area. This study investigated hydro-pedological characteristics at medium landslide sites in Manafwa catchment. The design had twelve (12) infiltration experiments that were conducted at each site. To determine the selected soil physical properties, composite soil samples were extracted from the infiltration sites for soil laboratory analysis. Soil cores were extracted to determine saturated hydraulic conductivity (Ksat) and bulk density. The observed high values of IR and rapid Ksat underscore the susceptibility of the studied sites to landslide hazards. Additionally, soil organic matter (SOM), clay content, and bulk density further contribute to the understanding of the hydro-pedological factors influencing landslide occurrences. These findings reveal the need for comprehensive investigations into hydro-pedological characteristics of other landslide categories to assist in landslide risk assessment and management strategies.
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    Modelling the impact of land use/cover changes on water balance of a humid equatorial highland catchment in Southwestern Uganda, East Africa
    (African Geographical Review, 2022-11) Loy, Turyabanawe Gumisiriza; Geofrey, Gabiri; Bernard, Barasa; Geoffrey, Mukisa; Claire, Nabatta
    This study investigates impact of land use/cover change on water balance of River Mitano catchment in Southwestern Uganda using SWAT model. Land use/cover changes were assessed using three land use maps for years of 2000, 2010 and 2020. Water fluxes were simulated using observed daily discharge.14.4% of precipitation received is converted into discharge, with base flow (2.9%) and lateral flow (11.8%) major contributors. Conversion of grasslands to cropland and built-up areas were key changes. An increase in cropland (6.8%) and built-up areas (3.0%) at expense of grassland and wetland were noticed, with significant increase in monthly and annual groundwater flow.