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dc.contributor.advisorCilliers, S.S.
dc.contributor.advisorKellner, K.
dc.contributor.authorLamprecht, Adriaan Johannes Hendrikusen_US
dc.date.accessioned2011-08-31T06:19:15Z
dc.date.available2011-08-31T06:19:15Z
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/10394/4604
dc.descriptionThesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2011.
dc.description.abstractConservation and management of the ecology of natural areas has become a prerequisite for mining companies in South Africa. Systematic conservation planning provides a useful tool for land–use planning and impact assessment, particularly in the mining industry. A study was therefore undertaken to provide sufficient, spatially explicit biodiversity and veld condition information to aid in the development and establishment of an official conservation plan for the leased mining area of Impala Platinum. By identifying areas with high plant diversity or endemism and by assessing veld conditions as well as grazing and browsing capacities, recommendations could be made towards management strategies and potential future land–use practices. The licensed mining area, north of Rustenburg, covers 29334 ha and includes 14 operational shafts. The area was stratified into three main categories based on landscape types namely: norite koppies; thornveld and rehabilitated areas. The Braun Blanquet approach was followed to sample 139 stratified random relevés. Additional computer software packages were used for capturing, processing and presentation of the phytosociological data (TURBOVEG) as well as a visual editor for phytosociological tables (MEGATAB). Ordinations were subsequently performed to confirm the plant communities and illustrate possible environmental gradients, using multivariate statistic analyses (CANOCO). Four plant communities with two subcommunities were identified and described in both the norite koppies and thornveld respectively while three plant communities with three sub–communities were identified in the rehabilitated areas. Specific environmental factors that influence plant community structure and composition in the norite koppies were the aspect and percentage of soil surface rockiness while soil types proved to be the distinguishing factor in the thornveld. The distribution of plant communities in the rehabilitated areas is mainly due to anthropogenic influences rather than any environmental factors. The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for ii conservation because of unique and high biodiversity and anthropogenic threats. The Eragrostis rigidior–Ziziphus mucronata and Acacia caffra–Bothriochloa insculpta Communities in the thornveld showed the best potential for browsing and grazing practices but were also recommended for conservation because of their high species diversity and anthropogenic threats. The high landscape functionality, veld condition and grazing capacity of the Aristida bipartita–Bothriochloa insculpta Community indicated that the rehabilitation of the opencast mining areas had been relatively successful at the time of the surveys. Selected parts of the Indigofera heterotricha–Aristida bipartita Community were also recommended for conservation and management in the form of controlled and more effective grazing strategies were recommended for the rest of the thornveld.en_US
dc.publisherNorth-West University
dc.subjectSystematic conservationen_US
dc.subjectPhytosociologyen_US
dc.subjectBiodiversityen_US
dc.subjectFIXMOVEen_US
dc.subjectVeld conditionen_US
dc.subjectGrazing and browsing capacityen_US
dc.subjectLandscape functionalityen_US
dc.subjectSistematiese bewaringen_US
dc.subjectFitososiologieen_US
dc.subjectBiodiversiteiten_US
dc.subjectVeldtoestanden_US
dc.subjectWei- en blaarvreetkapasiteiten_US
dc.subjectLandskapsfunksionaliteiten_US
dc.titleA vegetation study on the area leased for mining purposes by Impala Platinum, Rustenburg South Africaen
dc.typeThesisen_US
dc.description.thesistypeMastersen_US
dc.contributor.researchID10064559 - Cilliers, Sarel Stephanus (Supervisor)
dc.contributor.researchID10062750 - Kellner, Klaus (Supervisor)


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