MPM / Oliver Tambo Institute of Governance and Policy Studies

The Matlabas mire, an actively peat accumulating wetland, is located in the headwaters of the Matlabas River, Marakele National Park, Limpopo Province, South Africa. Various seepage zones and artesian peat domes are contained in this peatland that consists of two tributaries of which the western one is partially channelled. The occurrence of decaying peat domes and desiccated areas with terrestrial vegetation, as well as the apparent erosion on the western tributary, have raised concerns on the health of this wetland. A network of piezometers was installed in the mire and results confirm that the system is fed primarily from seepage from the slopes of the catchment. Chemical analysis and temperature recorded indicate an isolated groundwater source of which the water does not mix with surface water. This is linked with isotope analysis of the age of peat in various sections of the mire. Erosion was attributed to anthropogenic changes in the catchment. Management recommendations include rehabilitation and reinstating the driving forces that support the mire. / Environmental Sciences / M. Sc. (Environmental Management)

MPM / Oliver Tambo Institute of Governance and Policy Studies

MENVSC (Geography) / Department of Geography and Geo-Information Science / Artisanal and small-scale gold mining (ASGM) has devastating impacts on different parts of the environment and is a source of environmental degradation and contamination. ASGM degrades water resources, contaminate soil, sediments and water and lead to serious land degradation problems. ASGM activities are also associated with socio-economic issues such as child labour, prostitution and health and safety concerns. Insufficient understanding of the environmental and social problems of ASGM in Giyani Greenstone Belt has led to lack of mitigation strategies to reduce such problems. The main aim of this research was to assess and manage the environmental and socio-economic impacts of ASGM in Giyani Greenstone Belt. Remote sensing and GIS and Normalised Differential Vegetation Index were used to assess the effects of mining activities on vegetation cover. Assessment of the effects of ASGM on water, sediments and soil quality involved collection of samples in order to establish their physical and chemical properties. The concentration of toxic and trace metals were determined using Atomic Absorption Spectrometer (AAS) and X-ray Fluorescence (XRF) instruments. The pH meter was used to determine the pH level of the collected samples. Questionnaires, interviews and SPSS were used to assess socio-economic impacts of ASGM. The study culminated in devolvement of NDVI maps and this was used to assess the effects of ASGM on vegetation cover. Results showed that the mining activities in the area had caused extensive environmental degradation due to serious removal of vegetation cover in the site. ASGM had serious effects on soil, water and sediments quality such as environmental contamination by toxic and trace elements. Soil samples were found with high concentration of As, Cr, Cu, Ni, Pb and Zn as compared to the recommended South African Soil Quality and WHO threshold values for plants. It was found that Klein Letaba had high concentration of Ba, La, V, and Ce above the World Soil Averages for plants. Sediments were heavily contaminated with Cr, Ni, Pb, Zn, As and Ba as compared to the recommended standards prescribed by US EPA and WHO. The pH of water, soil and sediments samples collected from both mining sites were found to be strongly alkaline which affects the plants growth as well as aquatic flora and fauna. Socio-economic issues such as child labour, injuries, educational problems, health and safety issues, police disturbance, creation of jobs and income generation were identified at mine sites. ASGM had serious effect on vegetation cover through environmental degradation. ASGM also had serious environmental contamination by toxic and trace elements. ASGM had both positive and negative socio-economic issues at mining site which include employment opportunities, income generation, occupational health and safety, police disturbance and arrests and the use of child labour. Mine site rehabilitation is recommended in this study to reduce environmental degradation. The remediation of contaminated area by concentrated toxic and trace elements should be applied at both mining sites. ASGM should be legalised to enhance positive aspects of the mining such as increase in income generation and creation of more employment opportunities. However, there should be enforcement of mining policies to reduce social and environmental problems.

MCom (Business Information Systems) / Department of Business Information Systems / Today, information and communication technologies (ICT) have become an integral part of humans lives more especially in business, be it those in developed or developing countries. The evolution of ICT’s has also led to the introduction of e-Commerce services. Both the public and private sectors, develop these technologies with customer satisfaction in mind. Out of all the efforts by businesses and ICT experts, e-commerce systems continue to fail because of low user acceptance and user attitude, especially in developing nations. Security issues are known to be of top most concern for online shoppers. A survey was administered to 161 respondents, to find out how cyber security affects consumer’s intentions and actual use of e-commerce systems. The study encompasses both users of e-commerce systems and non-users of e-commerce systems across Vhembe district of Limpopo Province in South Africa. A quantitative research approach was used. The findings revealed that perceived security was the main concern for non-users of e-commerce intentions to use e-commerce systems because of lack of information and lack of trust on e-commerce systems. The study also revealed that users of e-commerce systems are still concerned about security, even though they intend to continue using e-commerce systems. For the success of e-commerce in rural communities, government needs to join hands with retailers and SME’s to start awareness campaigns that will clarify how e-commerce systems work and eradicate negative perception on e-commerce systems. / NRF

MSCAGR (Agricultural Economics) / Department of Agricultural Economics and Agribusiness / ABSTRACT This study was carried out to determine how members of households perceive economic benefits of production and marketing of Moringa in the Thulamela Local Municipality. The study adopted the snowball sampling procedure to identify the population of members of households who produce and market Moringa. Simple random sampling procedure was adopted to select 146 participants from the identified population. The Cross tabulations and Probit regression model were used as the analytical tools for this study. The results of the study revealed amongst others, that majority of members of households who were producing Moringa had no access to Moringa markets, and most of them were aware of the economic benefits of Moringa. The statistical significant variables which influenced the perceptions of members of households regarding economic benefits of production and marketing of Moringa were level of education (p < 0.01), Moringa farming experience (p < 0.05), access to market (p < 0.05), as well as the access to information (p < 0.05) about the production and the demand of Moringa produce. The study concluded that majority of respondents perceived that the production and marketing of Moringa would help to achieve sustainable livelihood for people living in Thulamela Local Municipality, while others were of the view that Moringa has the potential to improve nutrition, boost food security and foster rural development. The study recommended that establishment of Moringa markets, formation of Moringa cooperatives and promotional campaigns to educate members of households about the economic benefits of Moringa should be enhanced. / NRF

MENVSC / Department of Geography and Geo-Information Sciences / The purpose of this study was to contribute towards a better understanding of the effectiveness of Biosphere Reserve as a tool in managing natural resources in the Vhembe District Municipality (VDM), Limpopo Province of South Africa. There are limited documented materials for a better understanding of the effectiveness of Biosphere Reserve (BR) as a tool in managing natural resources in the Vhembe District Municipality (VDM). As a result, this study was undertaken to bridge this gap and to discover new insights to assist in understanding the effectiveness of BR as a tool in managing natural resources. This study adopted a pragmatic research approach, which is a mixture of the qualitative and quantitative research approaches, wherein data were collected using primary and secondary sources. Both primary and secondary data were used, in order to obtain information concerning the effectiveness of biosphere reserve in the study area. Primary data were obtained using a combination of methods, including participatory rural appraisal (PRA) tools and techniques, and informal and formal surveys. The secondary data was collected from desk-based examination of relevant documentation relating to conservation of the Biosphere Reserves areas. The documents included previous reports from Greenest Municipality Competition (GMC) results for all local municipalities from 2012 to 2017, Management Effective Tracking Tool (METT-SA) from 2016 to 2018, and previous research data on conservation. The results obtained revealed that Biosphere Reserve (BR) is an effective tool for the conservation of natural resources within Vhembe District, South Africa. This is because natural resources are taken into consideration when there are developments and projects being undertaken. Furthermore, the communities in Vhembe District Municipality benefit from the programmes and projects aimed at conserving natural resources within the VBR. The study also revealed that there are environmental challenges within the Vhembe Biosphere Reserve due to mining activities, climate change, developments in natural resources and deforestation, which require the enforcement of by-laws and programmes and projects aimed at conserving natural resources. / NRF

PhD (Business Management) / Department of Business Management / Despite the fast pace of development within the mobile commerce industry globally, marketers in developing countries are still lagging in understanding why and how consumers participate in mobile marketing transactions. The literature reporting on mobile marketing transactions’ adoption in a South African context remains largely inconsistent and fragmented as most previous studies are based on the experience of consumers in a non-South African (and nondeveloping country) context. Therefore, this study identifies a literature gap, in that there lacks a sufficient critical mass of studies into the moderating effect of information security on consumer adoption of mobile marketing transactions in South Africa particularly among the youth who have a strong affinity for constant mobile connectivity. Furthermore, confronted with rapid changes in emerging technology, previous models of technology adoption are slowly becoming outmoded. Consequently, this study considered testing a proposed model on the predictive power of marketing-related mobile activity to help improve understanding and prognosis of the adoption of mobile marketing transactions in South Africa. Specifically, in order to render these tests robust, perceived information security was applied as a moderator variable to increase the explanatory power of the model. The objectives set out for this research were measured utilising a single cross-sectional approach, guided by the positivist paradigm. In keeping with the dictates of ensuring the highest levels of reliability and validity, a measuring instrument developed from past studies was used. Using a self-administered questionnaire, data were collected from a sample of 810 students from selected South African universities. Descriptive and multivariate statistical tests including the moderated hierarchical regression analysis were used to analyse data. The implication of the study is that it provides both marketers and policymakers with a set of controllable variables that may be manipulated to promote the adoption of mobile marketing transactions. / NRF

MSCAGR (Soil Science) / Department of Soil Science / The effects of tillage on soil structure and associated soil properties such as soil respiration may differ in different soils. The study determined the effects of tillage, soil texture and mineralogy in selected soil properties on different soil types. Soil samples were collected from four different sites in the Limpopo province, South Africa. The soils were classified as Glenrosa with sandy loam texture, Dundee with loamy sand, Hutton with clay, and Shortlands with clay. Glenrosa and Dundee were dominated by quartz, while Hutton and Shortlands with kaolinite. Soil samples were taken from the surface 0 – 20 cm under conventional tillage and no-till land. Soil organic matter, texture, and mineralogy were determined. The soils were wetted to activate the microorganisms and incubated for 70 days at 30℃ and soil respiration was determined using alkali trap method on a weekly basis. The study was conducted in triplicates and arranged in a completely randomized design. Data was subjected to analysis of variance using general linear model procedure of Minitab version 19. Means were compared using paired t-test at (p ≤ 0.05). The Pearson correlation coefficient (r) was used to measure the strength of linear dependence between variables. There was a significant difference in soil organic matter (p≤0.000) among all studied soils. The mean values of soil organic matter were 2.19% in Hutton, 2.0% in Shortlands, 0.54% in Glenrosa, and 0.43% in Dundee. Quartz had a strong negative linear relationship (r = -0.66) with soil organic matter while kaolinite had a strong positive linear relationship (r = 0.96). Soil respiration increased in soils dominated with quartz and decreased in soils dominated with kaolinite. The soil respiration increased by 18.95 g CO2 m-2 d-1 in conventional tillage and decreased by 13.88 g CO2 m-2 d-1 in no-tillage due to increased exposure of soil organic matter under conventional. It was concluded that less intensive tillage such as no-tillage reduces soil respiration. / NRF

Indigenous Knowledge (IK) is in danger of being obliterated due to a number of factors, such as the lack of interest from younger generations, low life expectancy where people die before transferring it to the next generation and it not being documented. This is due to the fact that IK, by its very nature, is generally known to have been passed on from generation to generation through oral tradition. This qualitative study utilised the organisational knowledge conversion theory to investigate the acquisition, transfer and preservation of IK by traditional healers in the Limpopo Province of South Africa with the view to develop a framework to provide understanding on how IK is acquired, transferred and preserved by traditional healers. The study adopted hermeneutic phenomenology research method and utilised snowball sampling technique to determine the population of this study which consisted of indigenous healers from the Limpopo Province. Data were collected through interviews with traditional healers, observations, as well as document analysis. Data were analysed and interpreted thematically according to the objectives of the study. The study revealed that knowledge of traditional healing is mainly acquired through observations, imitations, following orders and performing tasks practically. In addition to that, collaboration was highlighted as one of the driving forces behind effective transfer and acquisition of knowledge among healers. The major finding to this study was that ancestors are believed to be the ones preserving this knowledge of traditional healing and they pass it down to the chosen ones through dreams, visions and so on. The study concludes that traditional healers also preserved their knowledge orally and commonly shared and acquire knowledge during interactions with other healers. Furthermore, traditional healing is marginalised and not properly regulated in South Africa. It is recommended that key stakeholders should play an active role in ensuring that traditional healing is incorporated into the country’s healthcare system. This way traditional healing can help reduce a heavy burden on public health sector in terms of treating patients. A further study on integrating traditional healing into mainstream healthcare system in South Africa is recommended. / Information Science / D. Litt. et Phil. (Information Science)