This thesis examines water quality status and deterioration in the Upper-
Athi-Nairobi sub-catchments which covers an area of 1154.4 km2 with an annual
discharge rate of 99242 m3/year (9.9 X 104 m3/yr). It is based on field and
laboratory analysis of water quality parameters.
The subject matter includes the assessment of land use processes
responsible for water quality deterioration. These include Industrial and
Agricultural activities. The study demonstrates how useful industrial

This paper describes the environmental degradation that has occurred in Kenya since early this century, initially due to the introduction of plantation farming. Forests have been further targeted for farmland, fuel wood, building materials and hardwood species. Range land species have also become threatened due to continued infiltration of the population. The discussion considers the efforts of the Kenyan government to legislate and administrate against the further loss of natural resources and the consequent development of environmental awareness among the populace.

Effects of soils, vegetation and land use on infiltration
rates and related soil physical properties of the semi-arid
Sirima and Hukogodo catchments in Laikipia district were
investigated. Representative six soils in Sirima and four
soils in Hukogodo, surveyed at detailed level, were assessed.
Within soil types, four site condition treatments with respect
to vegetation cover and land use designated as Tr_ee/Bush _(TB),
Open Grass (OG), Bare Ground (BG) and Cultivated Surface (CS)

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Satellites provide the possibility to give a synoptical view of the earth surface at regular time intervals. Satellites operating in the optical wavelengths have however as disadvantage that monitoring of the surface characteristics becomes impossible as soon as clouds are present. Deserts and desert margins are for that reason much more appropriate for monitoring by optical satellites than temperate and wet tropical areas. Potential hazards, possibilities and often inaccessibility makes use of optical remote sensing very reasonable.

Seminario sobre Gestión Metropolitana: Transporte y Medio Ambiente Urbano

Seminario sobre Gestión Metropolitana: Transporte y Medio Ambiente Urbano

Seminario sobre Gestión Metropolitana: Transporte y Medio Ambiente Urbano

Seminario sobre Gestión Metropolitana: Transporte y Medio Ambiente Urbano