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 113
- Downloads 0
Zalety wnioskowania bayesowskiegow projektowaniu geotechnicznym
Artykuł przedstawia zalety stosowania podejscia bayesowskiego do projektowania geotechnicznego. W pierwszej czesci artykułu przedstawiono zasadnicze założenia analizy bayesowskiej i opisano przykłady jej zastosowania wo...
Effects of road traffic on the ambient concentrations of three PM fractions and their main components in a large Upper Silesian city
The study concerns the assessment of the traffic influence on the concentrations of three particulate matter (PM) fractions and their basic components. The PM samples were collected simultaneously at two receptors in Kat...
Stabilizacja i ochrona brzegów wód przy wykorzystaniu pałki szerokolistnej i manny mielec
: W artykule przedstawiono wyniki badań nad właściwościami mechanicznymi pałki szerokolistnej Typha latifolia i manny mielec Glyceria maxima. Potrzebne do badań próbki pobrano z Jeziora Urszulewskiego koło Sierpc...
Long-term settlement induced by EPB tunnelling studied with numerical simulations
Long-term settlement induced by tunnelling in soft cohesive subsoil is rarely considered as a subject for research despite substantial evidence that it increases considerably after construction. The paper aims to investi...
Predicted small catchment responses to heavy rainfalls with SEGMO and two sets of model parameters
The study tests the ability of hydrological part of SEGMO (SedimentGraph Model), i.e. lumped parametric rainfall-runoff procedure of SEGMO to simulate design storm runoff in a Korean catchment. The aim of the investigati...