Abstract
Results of an extensive vegetation survey of 214 miombo woodland sitesare reported, encompassing the full spectrum of site types in the northernregion of Zimbabwe. At each sample site the vascular species (altogether640) were recorded, as well as 38 environmental variables (climatic,topographic, edaphic factors; geology, vegetation features, exploitation andland tenure). The sampling design was orientated along the environmentalgradients: altitude, slope, precipitation and geology. A reduced species set(286 species; frequency > 3%)was analysed by Canonical Correspondence Analysis (CCA), complementedby the ‘Monte Carlo Permutation Test’. The first axis represents acombination of the major environmental variables, altitude, precipitation andsoil texture, and the second – being of marginal importance – the‘Piriwiri’ and ‘Lomagundi sediments’. The matrix–consisting of the species and sites arranged according to the firstordination-axis – shows a diagonal feature embodying the moistureavailability gradient of the study area, subsequently divided into sevenordinalmoisture classes. The weighted averages of the species scores of therelevés – the scores being fixed by the membership of the singlespecies to one of the respective moisture classes – permits ranking thesites due to moisture availability, thereby assessing their land use capacity.
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References
AGRITEX 1989. Agro-climatological summaries and analysis (rainfall and AGRITEX potential evapotranspiration). Early Warning/Food Security Unit, Agritex/FAO, Harare.
Anderson I.P., Brinn P.J., Moyo M. and Nyamwanza B. 1993. Physical resource inventory of the Communal Lands of Zimbabwe — An Overview. In: NRI-Bulletin60., Catham, UK.
Braun-Blanquet J. 1964. Pflanzensoziologie. In: Grundzüge der Vegetationskunde. 3rd edn. Springer, Wien.
Cole M.M. 1963. Vegetation and Geomorphology in Northern Rhodesia: an aspect of the distribution of the savanna of Central Africa. Geographical Journal. 129: 290–310.
Ernst W. 1971. Zur Ökologie der Miombo-Wälder. Flora. 160: 317–331.
Frost P.G.H. 1996. The Ecology of Miombo Woodlands. In: Campbell B. (ed.), The Miombo in Transition: Woodlands and Welfare in Africa. Centre for International Forestry Research (CIFOR), Bogor, Indonesia, pp. 11–55.
Frost P.G.H., Medina E., Menaut J.C., Solbrig O., Swift M.S. and Walker B. 1986. Responses of savannas to stress and disturbance. Biology International. 10: 1–78 Special Issue.
Geiger R. 1961. Das Klima der bodennahen Luftschichten., Braunschweig.
Glavac V. 1996. Vegetationsökologie. Fischer Verlag, Jena.
Henkel J.S. 1931. Types of vegetation in S. Rhodesia (with map). Proc. Rhod. Sci. Ass. 30.
Hofstad O. 1993. Woodland management practices in Zimbabwe.: 51–61.
Van der Maarel E. 1979. Transformation of cover-abundance values in phytosociology and its effect on community similarity. Vegetatio. 39: 97–114.
Millington A.C., Critchley R.W., Douglas T.D. and Ryan P. 1994. Estimating woody biomass in Sub-Saharan Africa.World Bank, Washington, DC.
Nyamapfene K. 1991. Soils of Zimbabwe. Nehanda Publishers.
Piearce G.D. 1993. Natural Regeneration of Indigenous Trees: The Key to their successful Management. In: Piearce G.D. and Gumbo D.J. (eds), The Ecology and Management of Indigenous Forests in Southern Africa. Proceedings of an International Symposium, Victoria Falls, Zimbabwe, 27–29 July 1992. Zimbabwe Forestry Commission & SAREC, pp. 109–123.
Rattray J.M. and Wild H. 1960. Vegetation map of the Federation of Rhodesia and Nyasaland, Scale 1:2 500 000 (Miles). Kirkia. 2: 94–104.
Smilauer P. 1992. CANODRAW. Microcomputer Power, Ithaca, New York.
Swift W.H. 1961. An outline of the geology of Southern Rhodesia. Bulletin of the geological survey of Southern Rhodesia, survey 50.
Teague W.R. and Smit G.N. 1992. Relations between woody and herbaceous component and the effects of bush-clearing in Southern African savannas. J. Grassl. Soc. South.Afr. 9: 60–71.
Ter Braak C.J.F. 1986. Canonical Correspondence Analysis: A new eigenvector technique for multivariate direct gradient analysis. Ecology. 67: 1167–1179.
Ter Braak C.J.F. 1987. The analysis of vegetation-environment relationships by canonical correspondence analysis. Vegetatio. 69: 69–77.
Ter Braak C.J.F. 1990. Update notes: Canoco Version 3.10. In: Agricultural Mathematics Group, Wageningen, pp. 1–35.
Ter Braak C.J.F. and Prentice C. 1988. A theory of gradient analysis. Advances in Ecological Research. 18: 271–317.
Ter Braak C.J.F. and Verdonschot P.F.M. 1995. Canonical correspondence analysis and multivariate methods in aquatic ecology. Aquatic Sciences. 57: 255–289.
Timberlake J.R., Nobanda N. and Mapaure I. 1993. Vegetation survey of the communal lands — North and West-Zimbabwe. Kirkia. 14: 171–270.
Tinley K.L. 1982. The influence of soil moisture balance on ecosystem patterns in southern Africa. In: Huntley B.J. and Walker B.H. (eds), Ecology of Tropical Savannas. Springer Verlag, New York, pp. 175–192.
White F. 1983. The vegetation of Africa. Natural Resources Research 20, UNESCO, Paris.
Wild H. and Fernandes A. 1967. Supplement — Vegetation Map of the Flora Zambesiaca Area. In: Wild H. and Fernandes A. (eds), Flora Zambesiaca. M.O. Collins Ltd., Salisbury, Rhodesia.
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Kanschik, W., Becker, B. Dry miombo – ecology of its major plant species and their potential use as bio-indicators. Plant Ecology 155, 139–146 (2001). https://doi.org/10.1023/A:1013215602961
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DOI: https://doi.org/10.1023/A:1013215602961