Temporal changes of sediment dynamics within the Nairobi River sub-basins between 1998–2006 time scale, Kenya
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2010, Vol 42, Issue 1
Abstract
The city of Nairobi is the heart of both industrial production and the economic hub in Kenya and the Eastern Africa region. The city of Nairobi and its environs are drained by three streams, namely: Nairobi, Mathare and Ngong rivers. These streams drain areas of diverse land use activities. The land use changes in a spatial manner from the rich agricultural system through residential cum urban to industrial. The significance of these various land use systems to pollutants generation, pollution, sediment generation and hence water pollution and quality degradation is quite enormous and worth investigation. The land use changes in a spatial manner making the basin ideal for a temporal variation of sediments yields along the river profile and their impacts on the water quality status. This paper examines the results of study carried out within the basins in the years 1998–2006. The method of study involved water sampling and laboratory analysis to reveal the trends in sediment load increases downstream the investigated streams. Soil samples were also investigated to determine their relationship to soil erosion rates and sediment fluxes. The study attempts further to find the best sediment management strategies in reversing their increasing trends and restoring water quality within the basin.
Authors and Affiliations
SHADRACK KITHIIA, BONIFACE WAMBUA
Keywords
Related Articles
- EP ID EP97014
- DOI -
- Views 111
- Downloads 0
Potential effect of future climate changes on productivity of selected crops in Poland
Poland. Future projections of selected climate indices have been used to assess potential effects of climate changes on productivity of selected crops in Poland. CMIP5 global climate models’ results for the future period...
Terrestrial Laser Scanning (TLS) as a detection method of the natural river valley microtopography – case study of the Upper Biebrza
This paper concerns the use of Terrestrial Laser Scanning (TLS) methods and the Geographic Information Systems (GIS) analysis to determine microtopography of a natural river valley, case study of the upper Biebrza valley...
Laboratory assessment of permeability of sand and biopolymer mixtures
This research presents a method of creating seepage barriers in a sandy soil using biopolymer additives (biosubstance), which consist of polysaccharides and water. Polysaccharides strongly interact with water to produce...
Flow characteristics of intermittent rivers in Slovakia
Intermittent rivers are rivers that cease to fl ow, i.e. temporary, ephemeral, seasonal, and episodic rivers. Analysis of hydrological regime of such rivers is pivotal in assessment of water resources because changes in...
Effects of environmental changes and human impact on the functioning of mountain river channels, Carpathians, southern Poland
In the northern slope of the Carpathian Mountains and in their foreland, river and stream channels have been significantly transformed by human impact. These transformations result from changing land use in river basins...