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Temporal changes of sediment dynamics within the Nairobi River sub-basins between 1998-2006 time scale, Kenya

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Kithiia S. M., Wambua B. N.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

2010

tom 42

nr 1

17-22

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 signifi cance 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 profi le 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 fl uxes. The study attempts further to fi nd the best sediment management strategies in reversing their increasing trends and restoring water quality within the basin.

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Kithiia S. M.

1 Wambua B. N.

1 2010

Wyniki wyszukiwania

Temporal changes of sediment dynamics within the Nairobi River sub-basins between 1998-2006 time scale, Kenya