Land use patterns in the Morogoro and Kikundi river catchments, Uluguru Mountains, Tanzania.

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University of Dar es Salaam
Present land use was surveyed in. the Morogoro and Kikundi river catchments of Tanzania's Uluguru Mountains, the mountain range controlling water availability for Morogoro and Dar es Salaam areas. The catchments occupy an area of 23% C at elevations of 550-2100 m. The underlying rock throughout is preferable to the basement complex. Mean annual rainfall is estimated to range from 800 mm to over 1500 mm while mean annual temperature falls with increasing altitude from 25% C to 19% C.A grid of 100m2 sample units located at intervals of 150 m (North-south) and 500 m (East-west), was surveyed for environmental and crop information. Data were assembled from 105 units. More general environmental information on physical, geological and climatic features was extracted from existing publications. Complementary socio-economic data were acquired through interviews with 57 farmers from the areas a questionnaire being used to maintain as much consistency as possible in this exercise. Analysis of data was aimed at establishing the trends and nature of variations in individual environmental and land use characteristic within the catchments and at identifying interactions between these, with Chi-squared tests, Farmland (68%) of the catchments prayed the main load use, extending to steep (Over 30%) slopes and associated with sheet erosion against which little effort is made at control. Four major land use units can usefully be recognized - water source areas, woodland, upper catchment and lower catchment. The first two serve important protective functions, the water-source areas, occurring locally throughout the areas, should be inviolate. The woodland areas, in the tower part of the catchment, are seen as a potential fuel source under appropriate management. Agricultural activity should be restricted to the upper (Wet) and lower (Dry) catchments and be planned taking into account slope categories. The socio-economic survey revealed concern among the farmers about low production levels for their crops and there was no evidence of contact with effective agriculture and forestry extension programs. Despite emphasis on quantification and interpretation of the existing situation on the catchments - the land Classification and hand evaluation steps in the land Use Planning process it was possible to draw conclusions about constructive future activities on the respective land use units identified through the study. The most important of these for the immediate future are that cultivation should be as far as possible restricted to gentle (0 - 15 %) slopes (Especially maize and moderate (15 -30%) slopes (Especially bananas).Where use of the steeper slopes is unavoidable, growing of coffee is to be preferred. In all cases more attention needs to be given to the active application of soil conservation measures.
Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class mark (THS EAF HD111.T3M52)
Forests and forestry, Economic conditions, Land use, Morogoro, Tanzania
Mnangwone, I. (1983). Land use patterns in the Morogoro and Kikundi river catchments, Uluguru Mountains, Tanzania. Master dissertation, University of Dar es Salaam.