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Species structure in Zambian miombo woodland

Published online by Cambridge University Press:  10 July 2009

E. N. Chidumayo
E. N. Chidumayo
Affiliation:
Natural Resources Department, Government of Zambia
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Abstract

Miombo woodland in Zambia is divided into wetter and drier types by the 1100 mm mean rainfall isohyet. In the present study two wetter (Northern, Northwestern) and three drier (Central, Eastern, Western) miombo subtypes were recognized.

A survey of the woody flora of 94 old-growth and 58 coppice stands in the five miombo subtypes revealed some significant differences in species diversity among them. The floristic differentiantion of miombo subtypes was best achieved by the use of the Shannon species diversity index (H′) and species density (number of species 0.1 ha−1 or 0.4 ha−1). H′ in miombo decreased from 2.247 in Northwestern to 2.136 in Northern, 2.052 in Eastern, 1.918 in Central and 1.824 in Western subtypes. Although species density was not significantly different between wetter miombo subtypes, this decreased in a similar fashion from 18.78 0.1 ha−1 in Northwestern to 18.30 in Northern, 16.65 in Eastern, 14.79 in Central and 12.29 in Western subtypes. The low species diversity in Western drier miombo was attributed to the combined effects of low soil fertility and rainfall.

Although the mean number of species per 0.1 ha plot was higher in coppice samples, species richness (d) and index of diversity (H′) were lower than in old-growth samples. These results indicate lower species diversity in regenerating miombo. The dynamic aspects of species structure should therefore be considered in the future conservation of biological diversity in miombo woodland.

Keywords

conservationcoppicemiomboold-growthspecies diversitywoodlandZambia
Type
Research Article
Information
Journal of Tropical Ecology , Volume 3 , Issue 2 , May 1987 , pp. 109 - 118
Copyright
Copyright © Cambridge University Press 1987

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References

LITERATURE CITED

Chidumayo, E. N. 1979. Environment and development in Zambia: an overview. Zambia Geographical Association Occasional Study 10:9–18.Google Scholar
Chidumayo, E. N. 1983. Urbanisation and deforestation in Zambia. Desertification Control 9:40–43.Google Scholar
Chidumayo, E. N. In press. A survey of wood stocks for woodfuel production in Zambia. Forest Ecology and Management.Google Scholar
Chidumayo, E. N. & Chidumayo, S. B. M. 1984. The status and impact of woodfuel in urban Zambia. Government Printer, Lusaka. 52 pp.Google Scholar
Fanshawe, D. B. 1971. The vegetation of Zambia. Government Printer, Lusaka. 67 pp.Google Scholar
Government Of Zambia & International Union For Conservation Of Nature And Natural Resources. 1985. The national conservation strategy for Zambia. Government of Zambia/Iucn. 96 pp.Google Scholar
Lawton, R. M. 1978. A study of the dynamic ecology of Zambian vegetation. Journal of Ecology 66:175–198.CrossRefGoogle Scholar
Odum, E. P. 1971. Fundamentals of ecology (3rd edition). W. B. Saunders Company, Philadelphia. 574 pp.Google Scholar
Parker, R. E. 1973. Introductory statistics for biology. Edward Arnold, London. 122 pp.Google Scholar
Trapnell, C. G. 1953. The soils, vegetation and agriculture of North-eastern Rhodesia. Government Printer, Lusaka. 146 pp.Google Scholar
Trapnell, C. G. & Clothier, J. N. 1957. The soils, vegetation and agricultural systems of Northwestern Rhodesia. Government Printer, Lusaka. 69 pp.Google Scholar
White, F. 1962. Forest flora of Northern Rhodesia. Oxford University Press, Oxford. 455 pp.Google Scholar
White, F. 1983. The vegetation of Africa. Unesco, Natural Resources Research 20:86–101.Google Scholar