Abstract
Detrended correspondence analysis was used to study the relationships between environmental factors and the species composition of vegetation on Zambezi River alluvium downstream of the Kariba hydroelectric dam. Grass, sedge and woody species were recorded in 73 stands in Mana Pools National Park, Zimbabwe. Grass and sedge species composition was related to the soil moisture regime, as indexed by soil texture and flooding frequency. The first woody plant ordination axis was related to a stand development gradient; Acacia albida was a pioneer species on lowlying sandbanks and the woody species richness of stands increased with their height above the Zambezi River. Two-way indicator species analysis identified 7 vegetation types which could be separated on the basis of their topsoil texture and flooding frequency. The types were: sandbanks; young A. albida woodland; A. albida woodland; A. albida dominated mixed woodland; mixed riverine woodland with understory; mixed riverine woodland; and grassland on clay soils.
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References
Astle, W.L., Webster, R. & Lawrance, C.J. 1969. Land classification for management planning in the Luangwa Valley of Zambia. J. Appl. Ecol. 6: 143–169.
Attwell, R.I.G. 1970. Some effects of Lake Kariba on the ecology of a floodplain of the mid-Zambezi Valley of Rhodesia. Biol. Cons. 2: 189–196.
Bennett, J.G., Anderson, I. & Brinn, P.J. The soils of Mana Pools National Park. Chemistry and Soil Research Institute, Zimbabwe. Soils Report A517.
Craig, C.G. 1983. Vegetation survey of Sengwa. Bothalia 14: 759–763.
Dye, P.J. & Walker, B.H. 1980. Vegetation-environment relations on sodic soils of Zimbabwe-Rhodesia. J. Ecol. 68: 589–606.
Guy, P.R. 1977. Notes on the vegetation types of the Zambezi Valley, Rhodesia, between the Kariba and Mpata Gorges. Kirkia 10: 543–557.
Hill, M.O. 1979a. DECORANA A fortran program for detrended correspondence analysis and reciprocal averaging. Cornell Ecology Program, Ecology & Systematics. Cornell University. Ithaca, New York.
Hill, M.O. 1979b. TWINSPAN A fortran program for arranging multivariate data in an ordered two-way table by classification of the individuals and attributes. Cornell Ecology Program, Ecology & Systematics. Cornell University. Ithaca, New York.
Hill, M.O. & GauchJr, H.G. 1980. Detrended correspondence analysis: an improved ordination technique. Vegetatio 42: 47–58.
Jackson, P.B.N. 1961. The fish of the Middle Zambesi. Trustees of the National Museums of Southern Rhodesia.
Jarman, P.J. 1972. Seasonal distribution of large mammal populations in the unflooded Middle Zambezi Valley. J. Appl. Ecol. 9: 283–299.
Saunder, D.H., Ellis, B.S. & Hall, A. 1957. Estimation of available nitrogen for advisory purposes in southern Rhodesia. J. Soil Sci. 8: 301–312.
Savory, C.R. 1965. Game utilization in Rhodesia. Zool. Afr. 1: 321–337.
Thompson, J.G. 1965. The soils of Rhodesia and their classification. Rhodesia Agric. J., Techn. Bull. 6.
Walter, H. 1971. Ecology of tropical and sub-tropical vegetation. Oliver & Boyd, Edinburgh.
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Dunham, K.M. Vegetation-environment relations of a Middle Zambezi floodplain. Vegetatio 82, 13–24 (1989). https://doi.org/10.1007/BF00217978
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DOI: https://doi.org/10.1007/BF00217978