Document Type: ORIGINAL RESEARCH PAPER

Authors

1 School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg, South Africa

2 Greater Mapungubwe Transfrontier Conservation Area, International Coordination Office, Zimbabwe Parks and Wildlife Management Authority, P O Box CY 140 Causeway, Harare, South Africa

3 Peace Parks Foundation, 11 Termo Road, Techno Park, PO Box 12743, Die Boord, Stellenbosch, South Africa

Abstract

Mapungubwe Cultural Landscape (MCL) woody vegetation was characterized to establish structural and compositional attributes. Stratified random sampling based on major soil types was used and nine plant variables were measured in 137(20x30) m2 sampling plots; these being genera, species and family names; basal circumference; plant height; depth and diameter of tree canopy; number of stems per plant; plant life status; number of trees and shrubs; and number of saplings. A total of 3114 woody plants were sampled, comprising an assemblage of 28 families, 63 genera and 106 species. The results suggest alluvial floodplain flanking the Limpopo River is a biodiversity hotspot with high plant species diversity (H’=1.8-2.2) 1/ha, taller trees (P<0.05) with median height per plot ranging between 6.1-10 m, high canopy volume at 105783 (443155m3/ha) and basal area (16.9-111m2/ha). The Arenosols-Regosol stratum had significantly shorter trees (P<0.05) with median height per plot between 3-4 m, low species diversity (H’=0.8-2.3) 1/ha, low basal area (3.23-48.2m2/ha) and low canopy volume (6687.08(155965.00) m3/ha. The Cambisol-Luvisol stratum in the western section of MCL had high number of stems/plant at 1.65 (1.40), high woody plant density 483.33 (900.00) 1/ha, F3,137=19.07, P<0.05), high density of dead plants 16.67 (133.30) 1/ha and high sapling density 208.33 (850.00) 1/ha. The present study suggests soil type is a key determinant of woody vegetation structure and composition. The study recommends regular vegetation monitoring, periodic update of plant species inventories in protected areas, control of exotic invasive woody plant species found along the Limpopo river floodplain within the biodiversity management framework of Greater Mapungubwe Transfrontier Conservation Area initiative.

Graphical Abstract

Highlights

  • Woody plant species found in Mapungubwe National Park and World Heritage Site
  • Spatially-explicit record of woody plant family assemblage which is so interested in palaeoecological research.
  • Insights on woody species regeneration and recruitment into various size classes which is a key ecological attribute
  • Management interventions required to guide habitat restoration programs and establishing the conservation status of specific ecosystems

Keywords

Main Subjects

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