Chemical characteristics, with particular reference to phosphorus, of the rivers draining into Lake Naivasha, Kenya: Lake Naivasha, Kenya

The loss of phosphorus from the catchment of Lake Naivasha, Kenya, was 0.2 kg ha^sup -1^ ann^sup -1^, 76% of it particulate in a `normal' year of wet and dry periods. It rose to a mean of 1.8 kg ha^sup -1^ ann^sup -1^, 90% of which was particulate, in the months following the extreme rainfall w...

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Bibliographic Details
Published in:Hydrobiologia 2002-11, Vol.488 (1-3), p.57-71
Main Authors: KITAKA, Nzula, HARPER, David M, MAVUTI, Kenneth M, PACINI, Nic
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
El Nino
Extreme weather
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
Kenya, Naivasha L
Lakes
Limnology
Phosphorus
Rivers
Soil fertility
Suspended solids
Synecology
Water quality
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Summary:The loss of phosphorus from the catchment of Lake Naivasha, Kenya, was 0.2 kg ha^sup -1^ ann^sup -1^, 76% of it particulate in a `normal' year of wet and dry periods. It rose to a mean of 1.8 kg ha^sup -1^ ann^sup -1^, 90% of which was particulate, in the months following the extreme rainfall which followed the 1997-1998 El Niño event in the Southern Atlantic. Total and particulate phosphorus were positively correlated with suspended solids and with discharge, and conductivity was negatively correlated with discharge. The magnitude of losses pose both threats to the water quality of Lake Naivasha and to the sustainable soils resources of the catchment.[PUBLICATION ABSTRACT]
ISSN:0018-8158
1573-5117
DOI:10.1023/A:1023353825462