Vegetation and vegetation-environment relationships at Grootbos Nature Reserve, Western Cape, South Africa

Bothalia - African Biodiversity & Conservation

 
 
Field Value
 
Title Vegetation and vegetation-environment relationships at Grootbos Nature Reserve, Western Cape, South Africa
 
Creator Mergili, M. Privett, S.
 
Subject — Afromontane Forest; Agulhas Plain; biodiversity; CCA; fynbos; GIS; Milkwood Scrub Forest; numerical vegetation analysis; TWINSPAN; Western Cape
Description The private Grootbos Nature Reserve is located at the Western edge of the Agulhas Plain in the Cape Floristic Region of South Africa, an area characterized by high habitat and floristic diversity. The Reserve is covered in near-natural fynbos shrublands with a few patches of forest and wetland. The main objective of this study was to classify the vegetation into discrete units and relate them to the prevailing environmental conditions. The vegetation was analysed by numerical means (TWINSPAN, DC A, CCA) and mapped on GIS. At the vegetation type level. Forest Thicket and Fynbos formed distinctive clusters, whereas the wetland releves were intermixed, but without relationships to one of these units. Fire incidence served as the major determinant of the forest-fynbos boundary. The Forest Thicket grouping was separated into Thicket (as transitional to fynbos), Afromontane Forest and Milkwood Scrub Forest. Two broad complexes were distinguished within the Fynbos grouping, the Alkaline Sand Fynbos Complex corresponding to Coastal Fynbos. and the Acid Sand Fynbos Complex corresponding to Mountain Fynbos. They discriminated along gradients of pH. soil depth and rock cover. The complexes were further subdivided into formations by using one or a few subjectively chosen dominant species as indicators. The transitions between these formations were rather continuous than discrete. The vegetation type and complex levels correspond well to existing fynbos-wide classifications. Comparing the formations to the results of other vegetation studies is problematic even on the scale of the Agulhas Plain, due to the high regional plant diversity in the Fynbos Biome.
 
Publisher AOSIS
 
Contributor
Date 2008-08-14
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/abc.v38i1.273
 
Source Bothalia; Vol 38, No 1 (2008); 89-102 2311-9284 0006-8241
 
Language eng
 
Relation
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:

https://journals.abcjournal.aosis.co.za/index.php/abc/article/view/273/219
 
Coverage — — —
Rights Copyright (c) 2008 M. Mergili, S. Privett https://creativecommons.org/licenses/by/4.0
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