Original Research

The grasslands and wetlands of the Sekhukhuneland Centre of Plant Endemism, South Africa

S. J. Siebert, A. E. van Wyk, G. J. Bredenkamp, F. du Plessis
Bothalia | Vol 32, No 2 | a491 | DOI: https://doi.org/10.4102/abc.v32i2.491 | © 2002 S. J. Siebert, A. E. van Wyk, G. J. Bredenkamp, F. du Plessis | This work is licensed under CC Attribution 4.0
Submitted: 12 September 2002 | Published: 12 September 2002

About the author(s)

S. J. Siebert, Department of Botany. University of Pretoria, South Africa
A. E. van Wyk, Department of Botany. University of Pretoria, South Africa
G. J. Bredenkamp, Department of Botany. University of Pretoria, South Africa
F. du Plessis, Department of Botany. University of Pretoria, South Africa

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Abstract

A hierarchical classification, description, and ecological and floristic interpretations are presented on the vegetation types of the grasslands and wetlands of the Sekhukhuneland Centre of Plant Endemism. Relevés were compiled in 74 stratified random plots. A TWINSPAN classification, refined by Braun-Blanquet procedures, revealed eight associations. 11 subassociations and four variants. Many new syntaxa are described and ecologically interpreted. For each syntaxon. the species richness, endemism and conservation status was determined. The floristic and habitat information, proposed classification, general description and vegetation key are provided to aid future identification of conservation areas, land use planning and further research. An ordination (DECORANA). based on floristic data, confirmed the relationships that exist between plant communities and associated habitats and environmental gradients. Much of the plant community diversity and distribution can be ascribed to a heterogeneous environment, predominantly determined by soil moisture.


Keywords

biodiversity; Braun-Blanquet. conservation; endemism; grassland. Mpumalanga; norite; phytosociology. Sekhukhuneland. syntaxonomy

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1. Temperate grassy wetlands of South Africa: Description, classification and explanatory environmental factors
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doi: 10.1016/j.sajb.2017.07.009