Phytosociology of the farm Haribes in the Nama-Karoo biome of southern Namibia

Koedoe - African Protected Area Conservation and Science


 
 
Field Value
 
Title Phytosociology of the farm Haribes in the Nama-Karoo biome of southern Namibia
 
Creator Strohbach, Ben J. Jankowitz, Willem J.
 
Subject — Braun-Blanquet; land use; resettlement farm; syntaxonomy; vegetation classification
Description Limited historic vegetation data (prior to the 1980s) are available for Namibia. Finding such historic data at Haribes prompted a follow-up survey of the vegetation. We present a classification of the recent data in this paper as a first step towards comparing the two data sets. Six new associations (three with two subassociations each) are formally described. The landscape at Haribes is dominated by a pan with surrounding hummock dunes. The pan supports the Lycio cinereum – Salsoletum, whilst on the hummock dunes the Salsolo – Tetragonietum schenckii can be found. The surrounding plains and escarpment can be divided into three landforms: the torras with the Monsonio umbellatae – Boscietum foetidae, the ranteveld with the Acacio senegal – Catophractetum alexandri (and two subassociations) and calcrete ridges with the Zygophylo pubescentis – Leucosphaeretum bainesii. Dry river beds on the farm support two subassociations of Anthephoro pubescentis – Ziziphodetum mucronatae. The area covered by each dominant landform has been calculated after being mapped. The composition and diversity of the associations are briefly compared to other known vegetation descriptions within the Nama-Karoo. Since November 2011, Haribes has been used as a resettlement farm. This may result in the overutilisation of the limited grazing resources, to the extent that the present, fairly dense Acacio senegal – Catophractetum alexandri of the ranteveld is feared to become degraded to resemble the Monsonio umbellatae – Boscietum foetidae of the torras.Conservation implications: This paper describes six plant associations of the Nama-Karoo biome in arid southern Namibia. The information presented forms a baseline description, which can be used for future monitoring of the vegetation under altered land use.
 
Publisher AOSIS Publishing
 
Contributor
Date 2012-01-31
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/epub+zip text/xml application/vnd.ms-excel application/pdf application/pdf
Identifier 10.4102/koedoe.v54i1.1038
 
Source Koedoe; Vol 54, No 1 (2012); 13 pages 2071-0771 0075-6458
 
Language eng
 
Relation https://koedoe.co.za/index.php/koedoe/article/view/1038/1360 https://koedoe.co.za/index.php/koedoe/article/view/1038/1373 https://koedoe.co.za/index.php/koedoe/article/view/1038/1361 https://koedoe.co.za/index.php/koedoe/article/view/1038/1348 https://koedoe.co.za/index.php/koedoe/article/view/1038/1349 https://koedoe.co.za/index.php/koedoe/article/view/1038/1359 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/865 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/866 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/867 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/868 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/869 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/870 https://koedoe.co.za/index.php/koedoe/article/downloadSuppFile/1038/871
 
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Rights Copyright (c) 2012 Ben J. Strohbach, Willem J. Jankowitz https://creativecommons.org/licenses/by/4.0