Department of Biological and Environmental Sciences: Recent submissions
Now showing items 61-80 of 82
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Simulation of catchment hydrologic response under changing land use: case of upper Molo river catchment, Kenya
(2014)The urban and agricultural developments have led to changes in catchment hydrologic response. To clearly understand the effect of land use change on catchment hydrologic response, a study was carried out in the Upper Molo ... -
Analysis of manual and centralised supervisory control operations to improve level of service: a case study of pyramid hill no 1 channel, Victoria, Australia
(Kluwer Academic Publishers, 2001-02)The current challenge facing irrigation inAustralia is tofind ways to improve the operationalperformance of existing systems rather thanconstructing new ones. Unsteady flowsimulation models are often used as keytools to ... -
The ROSA project–a new approach to sustainable sanitation in Eastern African cities
(2008-09)The ROSA project promotes resources-oriented sanitation concepts as a route to sustainable and ecologically sound sanitation. These concepts shall be applied in four cities in Eastern Africa, namely Arba Minch (Ethiopia), ... -
Classification of catchment risk areas using spatially distributed event-based soil erosion: a case of upper Njoro river catchment, Kenya
(WIT Press, 2008-12-19)Human-induced soil erosion and drastic change in land use practices have adversely infl uenced the land degradation and surface runoff response in upper Njoro River catchment. The drainage area is approximately 127 km2. Due ... -
A review for hydraulic analysis of irrigation canals using HEC-RAS model: a case study of Mwea irrigation scheme, Kenya
(Science Publishing Group, 2014-12-19)Hydraulic simulation models could be suitable tools for understanding the hydraulic characteristics of irrigation systems. In this study HEC-RAS model will be tested in terms of error estimation and used to determine canal ... -
Analysis of drought effect on annual stream flows of river Malewa in the lake Naivasha basin, Kenya
(Radiance Research Academy, 2014-09-15)The main parameters of drought phenomenon are the longest duration and largest severity for a desired return period. These parameters form the basis for designing water storage structures to cope with drought effects. In ... -
Hydrological drought frequency estimation using stream flow drought index and modified gumbel method in upper Tana river basin
(Radiance Research Academy, 2015-11-15)Objective: To estimate the hydrological drought frequency for upper Tana River basin in Kenya using absolute Stream flow Drought Index (SDI) and modified Gumbel technique. The frequency of drought event of a defined ... -
Predictings sediment loading into Masinga reservoir and its storage capacity reduction
(2005-09-07)It is estimated that the annual loss in storage capacity of the world’s reservoirs due to sedimentation is around 0.5 – 1.0%. For many reservoirs, however, annual depletion rates are much higher and can go up to 4% or ... -
Norms, attitudes and gender perspectives in ecological sanitation
(Loughborough University, 2009)In Kenya, the urban poor are residing in the Peri urban areas of Nakuru Municipality with inadequate sanitation facilities. This study investigated attitudes towards urine diverting toilets to popularize their use as ... -
Detection of trends in extreme streamflow due to climate variability in the lake Naivasha basin, Kenya
(2014-11-17)Variability of streamflow has far-reaching impacts especially in developing countries. This is aggravated by climate change which has adversely affected the water resources and food security. This paper presents the ... -
Drought forecasting using indices and artificial neural networks for upper Tana river basin, Kenya-a review concept
(OMICS Publishing Group, 2014-01-01)Due to increased impact of drought on water availability at different scales there is need to understand droughts especially in upper Tana River basin which is a critical and largest water system in Kenya. There is need ... -
Recommendations for dealing with waste contaminated with ebola virus: a hazard analysis of critical control points approach
(2016)Objective To assess, within communities experiencing Ebola virus outbreaks, the risks associated with the disposal of human waste and to generate recommendations for mitigating such risks. Methods A team with expertise ... -
Estimating spatial sediment delivery ratio on a large rural catchment
(2006-05-20)Soil erosion and sediment yield from catchments are key limitations to achieving sustainable land use and maintaining water quality in streams, lakes and other water bodies. Controlling sediment loading requires the ... -
Modelling soil erosion and sediment yield at a catchment scale: the case of Masinga catchment, Kenya
(John Wiley & Sons, Ltd., 2006-08-07)Development of improved soil erosion and sediment yield prediction technology is required to provide catchment stakeholders with the tools they need to evaluate the impact of various management strategies on soil loss and ... -
Spatial modeling of sorghum (sorghum bicolor) growing areasin Kenyan arid and semi-arid lands
(Elixirpublishers : Agriculture, 2014-01-10)Sorghum (Sorghum bicolor) is an important African cereal crop and is listed among Africa’s lost crops but is now gaining popularity as other cereals are declining in production due to climatic change. To promote food ... -
Effects of N and K fertilization of sugarcane (Saccharum oficinarum) on acrisols in western Kenya
(Elixirpublishers : Agriculture, 2014-01-01)Sugarcane fertilization in Kenyan plantations is largely concentrated on Nitrogen and Phosphorus. Use of Potassium, secondary nutrients and micronutrients is altogether missing. Recent soil analysis results indicate that ... -
Sugarcane response to liming, manuring and inorganic fertilizers on acid acrisols in Western Kenya
(International Journal of Recent Scientific Research, 2014-01-01)Effects of agricultural lime, organic manure and selected inorganic fertilizers on sugarcane growth, yield and quality were determined in four trials conducted from 2009-2011 on acid acrisols in western Kenya. Predominantly ... -
The impacts of human activities on tree species richness and diversity in Kakamega Forest, Western Kenya
(Academic Journals : International Journal of Biodiversity and Conservation, 2014-06-01)Tropical rain forests are species rich ecosystems that are being depleted at very high rates through human encroachment. Kakamega forest is one of the heavily fragmented and disturbed tropical rain forests due to the high ... -
Forage availability and quality for the Impala (aepyceros melampus (brian) kathryh) of Impala sanctuary, Kenya
(International Journal of Recent Scientific Research, 2014-10-28)Brian) Kathryh) in three ecosystems of the Impala sanctuary, Kenya was assessed during the wet and dry seasons. The grazing behavior of the impalas was observed to identify the preferred forage species and patterns grazing ... -
Population status and conservation hotspots of Prunus Africana (Hook. F.) Kalkman in South Nandi Forest, Western Kenya
(Researchjournali’s Journal of Forestry, 2016-07-01)Prunus africanais assessed as vulnerable globally by the International Union for Conservation of Nature. The conservation status is however general and under-illustrated. It lacks details on the actual threats that cause ...