Return to HydroWeb HomepageISSN 1058-3912
Electronic journal of the International Association
for Environmental Hydrology
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JEH Volume 7 (1999), Paper 14, September 1999 Posted
September 28, 1999
LAND USE AND PHYSICAL HYDROLOGY OF THE SOUTH NJOMBE CATCHMENT, SOUTHERN
HIGHLANDS OF TANZANIA
Makwetta J. Atwitye
ICRAF/Tanzania, P.O. Box 797, Shinyanga, Tanzania
ABSTRACT
This study examines the effect of changes in land use and vegetation
cover on water yield from the Ruhudji catchment in southern Njombe. An
evaluation was also made to assess the effect of afforestration on water
yield. Land use vegetation covers were determined from topographic maps
produced by the government of Tanzania in 1963 and 1967. More recent aerial
photos were also used. Rainfall and runoff patterns were identified, and
3- and 5-year means were used to test any variation. Using correlation
techniques, the relationship between rainfall and runoff was tested; the
result showed very little correlation between the two variables. Some indications
are provided for future research and management practices needed in the
field.
Reference: Atwitye, M.J.; Land Use and Physical Hydrology
of the South Njombe Catchment, Southern Highlands of Tanzania, Journal
of Environmental Hydrology, Vol. 7, Paper 14, September 1999.
Makwetta J. Atwitye
ICRAF/Tanzania
P.O. Box 797
Shinyanga
Tanzania
E-mail: for283@abdn.ac.uk