Original Research

A phytosociological classification of the Nylsvley Nature Reserve

B. J. Coetzee, F. van der Meulen, S. Zwanziger, P. Gonsalves, P. J. Weisser
Bothalia | Vol 12, No 1 | a1388 | DOI: https://doi.org/10.4102/abc.v12i1.1388 | © 1976 B. J. Coetzee, F. van der Meulen, S. Zwanziger, P. Gonsalves, P. J. Weisser | This work is licensed under CC Attribution 4.0
Submitted: 10 November 1976 | Published: 10 November 1976

About the author(s)

B. J. Coetzee, Botanical Research Institute, Department of Agricultural Technical Services, South Africa
F. van der Meulen, Botanical Research Institute, Department of Agricultural Technical Services, South Africa
S. Zwanziger, Botanical Research Institute, Department of Agricultural Technical Services, South Africa
P. Gonsalves, Botanical Research Institute, Department of Agricultural Technical Services, South Africa
P. J. Weisser,, South Africa

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Abstract

The vegetation of the Nylsvley Nature Reserve in the Transvaal Mixed Bushveld is classified hierarchically by the Braun-Blanquet Method of vegetation survey. The vegetation is seasonal grassland and deciduous savanna with four floristically distinct major groups of plant communities: (I) grasslands and broad-leaved savannas on non calcareous sandy soils on elevated sandstone and felsite areas; (2) microphyllous thorn savannas on calcareous, clayey, bottomland alluvial soils and termitaria thickets; (3) grassland and thorn savanna on calcareous self-mulching vertic soils; and (4) secondary communities on long abandoned native settlements and recently ploughed land.

Seven primary communities with 12 community variations and 4 subvariations, and three secondary communities are described on the basis of 216 releves. The survey was carried out at two levels of detail, an ecosystem study area in the broad-leaved savanna being surveyed in more detail, floristically and structurally, than the rest of the Reserve.


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