Decline of the mountain acacia, Brachytegia glaucescens in Geonarezhou National Park, southeast Zimbabwe

摘要

The objective of the study were to investigate the role of fire and other factors in the decline of the mountain acacia, Brachystegia glaucescens Burtt Davy & Hutch. In the northern region of Geonarzhou National Park, southeast Zimbabwe. The study site, which is a wilderness area, has suffered a succession of fires which, coupled with elephant Pressure and drought, has reduced what was once woodland into scrubland. With the grass continuously burnt off, very Few grazing animals can be found in the area and erosion of the unprotected slopes has left it rocky and barren.