A5005270041- Hydrology and Watershed Management Studies
- Aquatic Ecosystems and Biodiversity
- Rice Cultivation and Yield Improvement
- Flood Risk Assessment and Management
- Soil erosion and sediment transport
- Aquatic Ecosystems and Phytoplankton Dynamics
- Climate change impacts on agriculture
- Water resources management and optimization
- Irrigation Practices and Water Management
- Fecal contamination and water quality
- Groundwater and Watershed Analysis
- Water-Energy-Food Nexus Studies
- Rangeland Management and Livestock Ecology
- Banana Cultivation and Research
- Wastewater Treatment and Reuse
- Urban Stormwater Management Solutions
- Hydrology and Drought Analysis
- Humic Substances and Bio-Organic Studies
- Soil Moisture and Remote Sensing
- Climate variability and models
- Geotechnical and Geomechanical Engineering
- Environmental Science and Water Management
- Escherichia coli research studies
- Plant Physiology and Cultivation Studies
- Growth and nutrition in plants
Egerton University
2007-2024
Abstract Recent hydro‐climatological trends and variability characteristics were investigated for the Lake Naivasha basin with aim of understanding changes in water balance components their evolution over past 50 years. Using a Bayesian change point analysis modified Mann–Kendall tests, time series annual mean, maximum, minimum, seasonal precipitation flow, as well mean lake volumes, analysed period 1960–2010 to uncover possible abrupt shifts gradual trends. Double cumulative curve was used...
Abstract Lake Baringo is a shallow, internal drainage, freshwater lake located in the Kenyan Rift Valley. The an important source of water for humans and livestock, as well significant income local communities through activities such tourism, biodiversity conservation, fish sold markets. has been subject to overfishing, greatly enhanced sedimentation result land use changes drainage basin. This paper provides analysis conditions prevailing at Baringo, examines detail management response...
The objective of this study was to determine the effect paddy rice ploughing techniques on water use and yield crop, as well efficiency for growing in small-holder irrigation schemes. conducted at a farmer’s field Powo B sub-block Maugo Irrigation Scheme. period from July 2019 January 2020, which is season. experimental site located vicinity Olare Shopping Centre, Kamenya Sub-location, Kochia East Location, Ward, Rangwe Sub-County, Homa Bay County, Nyanza Region, Kenya scheme Kenya. In...
Two rainfall-runoff models were calibrated and regionalized using data from upper Ewaso Ng'iro drainage basin in Kenya. The two Nash Cascade-Diskin Infiltration (NCDI) model Cascade-Green Ampt (NCGAI) model. Both have physical conceptual parameters. former derived catchment characteristics by overlaying land cover soil types within the framework of GIS. latter optimized Schuffled Complex Evolution (SCE-UA) optimization algorithm. parameters so determined correlated with a regionalisation...
Abstract The design and operation of flood management systems require computation hydrographs for both floods forecasting purposes, since observed data are usually inadequate these tasks. This is particularly relevant most developing countries, i.e. mainly tropical catchments. One possible way obtaining information about through the use rainfall—runoff models. Two such models, namely Bochum model Nash Cascade—Diskin Infiltration model, which semi-distributed lumped respectively, were used in...
Analysis of water balance for Lake Bogoria in Kenya using GIS and remote sensing techniques is presented this study. Due to limited meteorological hydrological data, long term averages mean annual rainfall, streamflow potential evaporation were used. Land cover the catchment was derived from Landsat TM 1995 upon which coefficients determining actual evapotranspiration estimated. The lake has a surface area 35 km² with 785 km². model used study that single reservoir whose components consist...
Abstract Estimation of direct runoff volume and peak rates for small rural catchments in Kenya, East Africa, poses a problem view the limited gauged data available. The can be circumvented by adopting modelling approach. This, however, does require some base model calibration validation. A highly reliable two catchments, Sambret (7.02 km2) Lagan (5.44 km2), nearly 22 years (1958–1980) is used present study. These lie headwaters Lake Victoria drainage basin Kenya were intensively instrumented...
Sorghum is an essential food security crop in the majority of ASALs regions, such as Baringo County. This study investigated critical relationship between rainfall levels and initiation sorghum planting, with aim identifying threshold at which considered sufficient for germination optimal growth. used historical meteorological data from 1990 to 2022, field experiments, statistical analysis, growth patterns discern trigger points are ensuring successful cultivation. uncovered alterations...
Agriculture in arid and semi-arid regions (ASALs) faces challenges due to limited water problematic soils. This study investigates the potential of superabsorbent materials like Super Absorbent Polymers (SAPs) pumice enhance retention agricultural productivity Ngubreti Mogotio Sub-County, Kenya, representing ASALs. Using a randomized design with different material ratios control group, research analysed soil parameters plant growth indicators. Incorporating increased porosity, reduced bulk...