Dissertations / Theses on the topic 'Nature Effect of human beings on South Australia'

It is widely believed that Australian Aboriginals utilised fire to manage various landscapes however to what extent this impacted on Australia???s ecosystems remains uncertain. The late Pleistocene/Holocene fire history from three sites within the Sydney Basin, Gooches Swamp, Lake Baraba and Kings Waterhole, were compared with archaeological and palaeoclimatic data using a novel method of quantifying macroscopic charcoal, which is presented in this study. The palynology and other palaeoecological proxies were also investigated at the three sites. The Gooches Swamp fire record appeared to be most influenced by climate and there was an abrupt increase in fire activity from the mid-Holocene perhaps associated with the onset of modern El Ni??o dominated conditions. The Kings Waterhole site also displayed an abrupt increase in charcoal at this time however there was a marked decrease in charcoal from ~3 ka. Lake Baraba similarly had displayed low levels of charcoal in the late Holocene. At both Kings Waterhole and Lake Baraba archaeological evidence suggests intensified human activity in the late Holocene during this period of lower and less variable charcoal. It is hence likely that at these sites Aboriginal people controlled fire activity in the late Holocene perhaps in response to the increased risk of large intense fires under an ENSO-dominated climate. The fire history of the Sydney Basin varies temporally and spatially and therefore it is not possible to make generalisations about pre-historic fire regimes. It is also not possible to use ideas about Aboriginal fire regimes or pre-historic activity as a management objective. The study demonstrates that increased fire activity is related to climatic variation and this is likely to be of significance under various enhanced Greenhouse scenarios. There were no major changes in the composition of the flora at all sites throughout late Pleistocene/Holocene although there were some changes in the relative abundance of different taxa. It is suggested that the Sydney Sandstone flora, which surrounds the sites, is relatively resistant to environmental changes. Casuarinaceae was present at Lake Baraba during the Last Glacial Maximum and therefore the site may have acted as a potential refugium for more mesic communities. There was a notable decline in Casuarinaceae during the Holocene at Lake Baraba and Kings Waterhole, a trend that has been found at a number of sites from southeastern Australia.

The Irwin River catchment, located in the central western region of Western Australia, has been the scene of significant geomorphological change over both historical and geological timescales. This thesis focuses on the most recent of these changes, the anthropogenic imprint, through the development of a catchment-scale understanding of system behaviour. Analysis and modelling of changes in the hydrological behaviour of the system indicates that while the Irwin River has displayed a natural susceptibility to large flood events, these have been exacerbated by the widespread clearing of native vegetation throughout the catchment. As a result, when such events do occur, the catchment response is now larger, more direct and has a greater ability to cause erosion. However, the nature and detail of sediment yield processes and stream channel response varies markedly throughout the system. A series of representative channel reaches, as defined by their planform characteristics, geometry and architecture, are presented to illustrate spatial changes in stream channel behaviour. A distinct variation in river morphotypes is seen both downstream throughout the system as well as across the tributary sub-catchments of the Irwin River, Lockier River and Green Brook. This inter and intra sub-catchment variation in stream channel response can be attributed to changes in the boundary conditions and coupling mechanisms in operation throughout the Irwin River system. The pronounced spatial variability in response to human disturbance and the changing nature of catchment-scale connectivity seen in the Irwin River system differs markedly to that reported elsewhere in the literature. Appreciation of the variability in form, behaviour and evolutionary history throughout the Irwin River catchment not only provides the foundation for effective management but also contributes to a wider understanding of fluvial system behaviour. Unlike the majority of existing literature, which tends to identify and measure channel changes in a single catchment where historical variation to the sediment and discharge regime is well known, this study demonstrates the role of boundary conditions in determining the response of the fluvial system to changing environmental controls.

Thesis (MPhil)--University of Stellenbosch, 2003.
ENGLISH ABSTRACT: This research project has been purposed at shedding light and bringing clarity and practical resolution to the ethical dilemma brought about by seemingly incompatible principles and value positions associated with the two contentious issues: social development and nature conservation. In view of exposing the contentions between the two above-mentioned value positions, this project has pitted anthropocentrism against biocen trism / ecocen trism. However, as alluded to in this research, many people in developing countries, South Africa included, are victims of poverty and hunger which need redress. Unfortunately the alleviation of the same has been made possible through ruthless exploitation and maximum expansion of natural resources and in the process, the environment suffered much. However, with social development, the natural environment is often sacrificed and conversely with the protection and preservation of nature, man is then condemned to destitution. With the introduction and the case expose forming the introduction of this research project in Chapter 1, Chapter 2 is devoted to the research methodology used throughout this project. Also, given the problem statement, endeavours to search for answers to the central questions are outlined. An analysis of the case study is also made in this chapter. Chapter 3 deals with the weighing of the classical dilemmas namely: anthropocentrism versus biocentrism / ecocentrism and this further entails the notion of justice versus conservation pertaining the case in point. These classical dilemmas are put into critical perspective in Chapter 4 wherein monistic value approaches are exposed in terms of their failures. Precisely, the either-or choices following from pure theoretical principles are put into question with reference to the case under discussion. An alternative, namely the pragmatic approach, which maintains a multiplicity of values, is hereby brought into play. Chapter 5 entails a critical appraisal of the decision to be taken by the Makhado Municipality Council with regard to the development of the shopping complex or the protection of the indigenous tree sanctuary. In conclusion, recommendations and suggestions are stated within the context of the case in point. However, it is imperative to note that these recommendations and suggestions should be read in conjunction with one another, and not in isolation from one another. Furthermore, the same should not in anyway be indiscriminately used as a universal standard in any similar or related case. Further research on this ethical debate is encouraged.
AFRIKAANSE OPSOMMING: Die doel van hierdie navorsingsprojek is om helderheid en 'n praktiese oplossing te kry met betrekking tot die etiese dilemma wat voortspruit uit die oeriskynlik onversoenbare beginsels en waardeposisies wat geassosieer word met twee omstrede kwessies, naamlik sosiale ontwikkeling en natuurbewaring. Met die oog daarop om die kwelpunte rondom bogenoemde twee waardeposisies aan die lig te bring, stel hierdie projek antroposentrisme teenoor biosentrisme / ekosentrisme. Baie mense in ontwikkelende lande, insluitend Suid-Afrika, IS slagoffers van armoede en hongersnood, soos aangedui word in die loop van hierdie navorsing. Hierdie situasie noodsaak regs telling. Pogings om verligting te bring in hierdie verband, lei egter tot die genadelose eksploitasie en maksimum ontwikkeling van natuurlike hulpbronne. In hierdie proses word die omgewing ernstig beskadig. Die ongelukkige toedrag van sake is dus dat sosiale ontwikkeling dikwels geskied ten koste van die omgewing, terwyl die beskerming en bewaring van die omgewing op sy beurt dikwels die mens behoeftig laat. Hoofstuk 1 van hierdie navorsingsprojek bevat 'n inleiding en beskrywing van die geval onder bespreking, terwyl Hoofstuk 2 gewy word aan die navorsingsmetodologie wat in hierdie projek gebruik word. Dit bevat ook 'n skets van die pogings om antwoorde te soek op die sentrale vrae van die probleemstelling, en 'n analise van die gevallestudie. In Hoofstuk 3 word die klassieke dilemmas wat verband hou met die betrokke probleem opgeweeg, naamlik antroposentrisme teenoor biosentrismej ekosentrisme, en die idee van geregtigheid teenoor die idee van bewaring. Bogenoemde klassieke dilemmas word in 'n kritiese lig beskou in Hoofstuk 4 deurdat die tekortkominge van monistiese waardebenaderings uitgewys word. Die 6f-6f keuses wat volg uit suiwer teoretiese beginsels word bevraagteken met verwysing na die geval onder bespreking. 'n Pleidooi word uiteindelik gelewer vir 'n alternatiewe pragmatiese benadering wat eerder 'n veelheid van waardes betrek. Hoofstuk 5 bevat 'n kritiese beoordeling van die keuse wat die Makhado Munisipaliteitsraad moet maak tussen die ontwikkeling van 'n winkelkompleks of die beskerming van 'n inheemse boomreservaat. Ter afsluiting word aanbevelings en voorstelle gemaak in verband met die kwessie onder bespreking. Dit is egter belangrik om daarop te let dat hierdie aanbevelings en voorstelle nie apart van mekaar beskou moet word nie, maar eerder saam gelees moet word. Dit is verder ook belangrik dat die aanbevelings en voorstelle wat met betrekking tot hierdie geval gemaak word nie sonder meer gebruik moet word as 'n universele standaard vir soortgelyke of verwante gevalle nie. Verdere navorsing oor hierdie etiese debat word aangemoedig.

Many of the anticipated increased occurances of natural hazards are not only a consequence of climate change, but rather of rapid and widespread land cover change and the subsequent loss of the buffering capacity provided by healthy ecosystems against natural hazards. Unplanned and unmanaged developments in informal settlements limit government’s ability to mitigate and manage, pointing towards natural resources as being integral for vulnerable communities in developing countries to cope with and mitigate flood disasters. There is a lack of understanding on how natural resources contribute to resilience of vulnerable populations in the Eastern Cape and how they are impacted by these populations before, during and after a flood shock. There also exists a gap in knowledge on how natural resources can mitigate the physical impacts of flooding in South Africa, more so in the Eastern Cape province. Using household questionnaires and GIS techniques, the strategies that households used to recover from the October 2012-February 2013 flood shocks were investigated in informal settlements of three towns (Grahamstown, Port Alfred and Port St Johns). Within the vulnerability paradigm and the sustainable livelihood framework, the study also quantified and evaluated the relative contribution of natural resources to recovery strategies, and lastly, the study investigated how patterns of land use, state of natural vegetation and household topographical location exacerbated or diminished the physical impacts of flooding. This study found that natural resources contributed up to 70 percent to recovery of households from the flood shock, most of this being to reconstruction of housing structures after the flood, less so to economic recovery. It was also found that at a settlement scale the buffering effect of vegetation, although variable amongst settlements, was significant. Settlements that were dominated by dense bush and small trees experienced up to 46 percent less impacts on their property than those surrounded by bare gravel and impervious roofs with degraded environments. The main findings of the research show that natural resources reduce the vulnerability of households in informal settlements to flooding in two significant ways; by physically mitigating against damage to shelters and by also providing an emergency-net function that substitutes financial capital in households. Their inclusion in disaster management has the potential to encourage the sustainable livelihoods of the urban poor in the Eastern Cape

While it is now well established that many Europeans were delighted with the landscapes they encountered in colonial Australia, the pioneer narrative that portrays colonists as threatened and alienated by a harsh environment and constantly engaged in battles with the land is still powerful in both scholarly and popular writing. This thesis challenges this dominant narrative and demonstrates that in a remarkably short period of time some colonists developed strong connections with, and even affection for, their 'new' place in Western Australia. Using archival materials for twenty-one colonists who settled in five regions across southern Western Australia from the 1830s to the early 1900s, here this complex process of belonging is unravelled and several key questions are posed: what lenses did the colonists utilise to view the land? How did they use and manage the land? How were issues of class, domesticity and gender roles negotiated in their 'new' environment? What connections did they make with the land? And ultimately, to what extent did they feel a sense of belonging in the Colony? I argue that although utilitarian approaches to the land are evident, this was not the only way colonists viewed the land; for example, they often used the picturesque to express delight and charm. Gender roles and ideas of class were modified as men, as well as women, worked in the home and planted flower gardens, and both men and women carried out tasks that in their households in England and Ireland, would have been done by servants. Thus, the demarcation of activities that were traditionally for men, women and servants became less distinct and amplified their connection to place. Boundaries between the colonists' domestic space and the wider environments also became more permeable as women ventured beyond their houses and gardens to explore and journey through the landscapes. The selected colonists had romantic ideas of nature and wilderness, that in the British middle and upper-middle class were associated with being removed from the land, but in colonial Western Australia many of them were intimately engaged with it. Through their interactions with the land and connections they made with their social networks, most of these colonists developed an attachment for their 'new' place and called it home; they belonged there.

The cheetah (Acinonyx jubatus) has experienced a drastic decline in numbers over the last 20 years globally and is currently listed as vulnerable by the International Union for the Conservation of Nature (IUCN). In South Africa, there are only an estimated 763 free-ranging cheetahs and conflict with humans is arguably the most significant reason for this low number. The aim of my study was to determine the population size and demographic characteristics of the cheetah population within the Timbavati Private Nature Reserve (TPNR), South Africa, and to contribute to a better understanding of cheetah space use and habitat selection. The research was conducted on TPNR between November 2009 and June 2011 and I used a photographic survey to assess cheetah population size and demographic characteristics. Location data was obtained by collaring two adult male cheetahs with GPS/GSM collars and ad hoc sightings data from across the reserve for an adult female with cubs and three adolescent females. A relatively high minimum population density of 4.46 cheetahs/100km² was estimated, signifying a relatively healthy cheetah population. The sex ratio data indicated a higher male to female ratio and an average litter size of three cubs. The relatively high cub survival rate and density is promising in terms of the status of species within the area, as the data denote the success and potential persistence of the species. Cheetah home ranges varied between 20.97km² for the female with cubs and 659.65km² for the younger collared male. Season did not appear to be a determining factor in terms of home range sizes for the three social groups within the TPNR. However, the males did show a slight increase in their home range sizes during the dry season when resources where presumably more widespread. My results indicate that the cheetah is an adaptable species, flexible in behaviour and able to tolerate a variety of habitat types. Such knowledge is fundamental for planning and implementing the effective management and conservation of cheetahs in South Africa.

In their article ―Naturing the Nation: Aliens, the Apocalypse and the Post Colonial State (2001) Jean and John Comaroff look at ―the contemporary predicament of South Africa through the prism of environmental catastrophe. Through it they reveal the context in which alien plants have become an urgent affair of the state. Following their lead, I show how alien plants (particularly Australian wattle) continue to provide grounds for new social and political aspirations in South Africa, though in a different setting. With reference to a group of private landowners on the fringe of a World Heritage Site -- the Baviaanskloof Mega-Reserve, Eastern Cape, South Africa -- I show how an increasingly apocalyptic and xenophobic environmental agenda has influenced local activists seeking to address social and ecological issues in tandem with alien-eradication. These local activists adhere to a particular brand of environmentalism which Milton (1993) argues can be considered a social, cultural and religious phenomenon. The subjects of my main empirical investigation offer practical ways of achieving a transformational end through a new ritual activity in relation to a spread and exchange of environmental ideas and practices on a world-wide scale. On the ground this group practices ecosocietal restoration through which they aspire to mend the bond between people and the land in a spiritual and moral sense, bolstering intrinsic incentives for environmental stewardship and achieving ―cultural reconciliation in an attempt to reimagine what South Africa could be.

Thesis (MA)--Stellenbosch University, 2000.
ENGLISH ABSTRACT: This thesis investigates why human poverty and environmental degradation still exist to the extent that they do in a world where there appears to be sufficient scientific and social knowledge to reduce them considerably. It asserts that the reason they continue to exist on such a large scale is because their root cause - a mistaken understanding of humanity's role in creation - has not been sufficiently examined. Humanity's mistaken understanding of ourselves as the Cartesian lords of creation is addressed by introducing the Biblically-based concept of Shalom, as interpreted by theologians Ulrich Duchrow and Gerhard Liedke in their book, Shalom. Biblical Perspectives on Creation, Justice and Peace (1987). The concept stresses how our exploitative relationship towards creation results in destructive relationships with our fellow human beings and ultimately with God. The thesis argues that global capitalism's central value of accumulating wealth for its own sake has severely disrupted Shalom in society and the rest of creation. Using a second work of theologian Ulrich Duchrow, Alternatives to Global Capitalism. Drawn from Biblical History Designed for Political Action (1995), the social and environmental poverty inducing structures within the world economy are highlighted. It is asserted that in order to reduce poverty and environmental degradation within the economy, this central value of wealth accumulation for its own sake has to be replaced with one that seeks to satisfy the basic needs of all people. The thesis also discusses the inability of the South African government's macro economic strategy - the Growth, Employment and Redistribution plan (GEAR)- to create Shalom. In order for the macro-economic strategy of South Africa to address the exploitative relationships that exist within the economy, it is argued that a more critical attitude towards the values and structures of the market economy is needed.
AFRIKAANSE OPSOMMING: Hierdie tesis ondersoek die vraag hoekom armoede en omgewingsaftakeling steeds bestaan in 'n wêreld waar genoegsame wetenskaplike en sosiale kennis beskikbaar is om dit aansienlik te verminder. Dit argumenteer dat die rede waarom hierdie probleme op so 'n groot skaal voortbestaan, is omdat hulle grondoorsaak - 'n verkeerde verstaan van die mens se rol in die skepping - nie voldoende ondersoek is nie. Die mensdom se misverstaan van sigself as die Cartesiaanse meesters van die skepping word aangespreek deur die ondersoek van die Bybels-gebasseerde konsep van Shalom, soos geïnterpreteer deur die teoloë Ulrich Duchrow and Gerhard Liedke in hulle boek Shalom. Biblical Perspectives on Creation, Justice and Peace (1987). Die konsep benadruk hoe ons eksploiterende verhouding tot die skepping resulteer in 'n vernietigende verhouding met ons medemens en uiteindelik, met God. Die tesis argumenteer dat globale kapitalisme, met die akkumulasie van welvaart vir sigself as sentrale waarde, Shalom ondermyn in die wêreld en die res van die skepping. Deur gebruik te maak van 'n tweede werk van die teoloog Ulrich Duchrow, Alternatives to Global Capitalism. Drawn from Biblical History Designed for Political Action (1995), word die strukture wat sosiale- en omgewings-armoede veroorsaak binne die wêreldekonomie, ondersoek. Dit word gestel dat, ten einde armoede en omgewingsvernietiging te verminder, hierdie sentrale waarde van welvaartakkumulasie vir sigself vervang moet word met een wat daarna streef om die basiese behoeftes van mense te bevredig. Die onvermoë van die Suid-Afrikaanse regering se makro-ekonomiese strategie, naamlik die Groei-, Werkskeppings- en Herverdelingsprogram (GEAR) - om Shalom te skep, word ook bespreek. Dit word geargumenteer dat, ten einde 'n situasie te bereik waar die makro-ekonomiese strategie van Suid Afrika die eksploiterende verhoudings binne die ekonomie aanspreek, 'n meer kritiese houding ten opsigte van die waardes en strukture van die vryemark ekonomie benodig word.

This thesis demonstrates the value of bringing together local environmental knowledge and perspectives on change with professional knowledge. Since the first pastoralists displaced Aboriginal land owners in the Tumut region, the country has been shaped by successive waves of occupation and land use. Each time a new land use industry was imposed on the country, the knowledge base of previous occupants was devalued, and the country once again managed without a knowledge of its history. I explore the characteristics of local environmental knowledge in order to understand how it may be tapped by new land managers. In doing so, I analyse the subjective nature of local people’s memories as well as the information resource which they contain. By drawing on local knowledge, and contextualising it with reference to scientific and historical sources, it is possible to construct a more detailed picture of how a particular region has changed over time. The environmental impact of various land uses can be better understood and the social impact also becomes clearer.

Includes bibliographical references (p. 575-607) Pt. A. Ecological cityscapes: theory & practice -- pt. B. Urban ecology Australia &ecopolis: ecocity projects in South Australia -- pt. C. Towards a theoretical synthesis of ecopolis About creating and maintaining 'ecological cities' and the necessary conditions for making ecocities. Sets the creation of human settlement in an ecological context and demonstrates through case study analyses that practical approaches to urbanism can be made within a theory of city-making grounded in principles of direct democracy and cooperative community processes.

People's level of development is a significant determinant in their relationship to wild nature. People today characterized by a high level of development value wild natural resources primarily for non-consumptive aesthetic and humanistic purposes. Modern nature conservation has been dominated by developed peoples' concerns with wild nature. Concerns of developed peoples with wild nature are described by a resourcism-preservationism paradigm. In contrast underdeveloped peoples rely upon wild nature to maintain the integrity of their cultures and increasingly for purposes of physical survival and promoting, development; this involves consumptive use of wild nature. As all people increasingly become part of a global development trajectory, resourcism-preservationism is articulating itself as the global people-environment dynamic. Emergent relations between nature conservation agency staff and reserve neighbours in South Africa offer a unique opportunity to study competing concerns around wild nature and assess the ability of approaches which link conservation and development to meet developed and underdeveloped peoples' concerns. Evaluation of reserve-neighbour interaction at Giant's Castle and Kosi Bay areas is achieved through determining whether it empowers reserve neighbours and conservation agency staff; fundamental to empowerment is people managing natural resources themselves. Natal Parks Board's and KwaZulu Department of Nature Conservation's frameworks for extension do not empower reserve staff or neighbours at Giant's Castle and Kosi Bay respectively. Trends in competition between developed and underdeveloped peoples for use of wild nature evidenced in field studies mirror global trends in people-environment relations. Recent attempts in South Africa and internationally to address the concerns of underdeveloped peoples, witnessed in efforts to link development to conservation such as reserve-neighbour interaction, are efforts by developed people to protect their particular concerns with wild nature. As a result these attempts have not been integrated into a larger conservation and development process. Instead they have been plagued by short term vision among nature conservation agencies and reserve neighbours. Linking conservation and development is a process fundamental to the future of conservation, benefitting people at all levels of development. A fundamental redefinition of conservation agency objectives and restructuring conservation agency operations is required such that people are empowered to manage their own natural resources. Principles to guide and an approach for structuring such an undertaking are proposed involving collaboration with relevant agents.
Thesis (M.Soc.)-University of Natal, Pietermartizburg, 1996.

Weather and climate are truly arresting in Australia's far north. They set the 'Top End' - the northernmost parts of the Northern Territory - apart; not only from 'temperate' Australia, but also from other tropical locales. Weather and climate are integral to the experience of the place. Authoritative histories of the Northern Territory, with justification, routinely discuss its weather and climate. They indicate the ineluctable physical parameters that bound human activity in this region and which also set the stage for the dramas of human history played out there. In this study weather and climate are the drama. They are the characters, and they are the plot. Elements of the great aerial ocean in which the 'Top End' is immersed - rain, wind and heat - are studied on a variety of time scales. Events are examined: their intensity, duration, chronology and patterns in time. Just as nature and culture are inextricably entwined, so these elements cannot intelligibly be amputated from human experience. To paraphrase US environmental historian William Cronen, this is a study of stories about stories about weather and climate. The third dimension of this history is its interrogation of the cultural biases and philosophical assumptions both underlying and revealed by these stories about weather and climate. However, this work focuses on one constellation of encounters and responses: those of the colonial invaders. The ideas and (mis)understandings of this group have determined how weather and climate have been seen since colonial times. Now, in the Anthropocene, as the effects of anthropogenic climate change unfold, this understanding is pivotal in dealing with this looming problem. This study is a history of a plausible, coherent misunderstanding. It is also a history of the northernmost region of the Northern Territory, a history refracted through a different prism to those of its worthy predecessors. Here the subject is the colonial encounter with tropical skies, science in colonial and northern Australia and experience-based efforts to grasp something so foreign to people from temperate environs. It reveals how western ideas of time have distorted understandings of weather and climate. It demonstrates the poor fit of received ideas of seasonality and climate to historical experience. Reflecting on important contingencies of this place between 1800 and 1942, this history situates human experience in the Northern Territory firmly in the global currents of both environmental history and intellectual history.

In the context of growing concern for the potential impact of climate change, climate governance mechanisms are employed by nation states aiming to influence environmental actions of various actors. Promoting green behaviour of individual citizens is one of the current climate governance approaches. Furthermore, increasing attention is given towards the younger generations, as they will have to bear the consequences of climate change. Empowering young people to act against climate change is, therefore, important. This study aims to explore whether ecological citizenship among young people in Durban, South Africa, could be a valuable component of climate governance. It will do so by: 1) exploring how young people conceptualise climate change, 2) how they understand and experience citizenship, 3) whether they possess features of ecological citizenship. This research consists of a qualitative study based on semi-­‐structured interviews with eighteen young individuals. The conceptual tools of practice theory and citizenship, that incorporate aspects of ecology and youth, are utilised for understanding the empirical study. The findings suggest that young people in Durban have a vague understanding of climate change-­‐related concepts. Furthermore, it shows a gap between the understanding and the experience of citizenship. The youth comprehend citizenship with its features of rights and obligations; however, their experience of citizenship is largely dominated by detachment from politics, a sense of exclusion, and a lack of authentic opportunities to play out citizenship activities. Lastly, everyday practices of young people reveal a limited range of environmentally friendly actions accompanied by a moderate sense of agency in relation to environmental problems. This study shows that in order for young people to be able to act as ecological citizens, there are several structural constraints that need to be transformed into opportunities. This research suggests that there is a need to: 1) enable citizenship options for young people, 2) establish practical alternatives for sustainable behaviour. This study argues that providing such structural opportunities has the potential to develop young citizens that can act in an environmentally friendly way, without providing any guarantee for green behaviour. However, the potential for such behaviour is nevertheless greater with structural opportunities, rather than constrains.
M. Dev. Studies University of KwaZulu-Natal, Durban 2013.

This study is concerned with the physical and human causes of soil. erosion. Some quantitative information on the magnitude of soil erosion for different ecoregions in South Africa is available. However, such quantitative data is available only from a few sites. One objective of this thesis is to add to the existing data. Site specific data is provided for the two study areas in the Eastern Cape Province, namely, Chani area in Mt Frere and Brooks Nek area in Mt Ayliff. A comparison is made between the physical and chemical characteristics of the soils found in both study areas. The spatial and temporal extent of the erosion problem is also given. Another major objective is to evaluate the soil rehabilitation measures used at these two areas. An evaluation of the relevance and efficiency of the erosion control measures is made. (For gully erosion especially, the present study provides an evaluation of the suitability and effectiveness of the gully control mechanisms adopted.) Most importantly, a third objective of this study is to investigate the awareness and attitudes of the members of the communities affected by the erosion problem. Among the many different factors found to be important in the causal nexus that results >f in soil erosion, it has been found that many of the problems originate from social causes, like that of too large a population for the limited available resources. Added to this, factors like poor development programmes, bad agricultural practices, bad road management, have exacerbated the erosion problem. In other words, from research and interviews conducted in the study areas, erosion problems linked to recent political policies; to farming and to other practices were found to be associated, inter alia, with the shortage of land, unemployment, the lack of the necessary farming equipment, overgrazing and so on. To stress the point, the five important factors contributing to erosion were identified as an over exploitation of the land resource for basic needs, bad road management, floods, drought, and concentrated flow on furrows made by both on and off-road vehicles. We noted that another important feature of this thesis is to give an account of the psychological attitudes of individuals living near the areas affected by erosion, Respondents to interviews and to questionnaires generally agree that there has been a lot of change in their natural and man-made environments, especially in terms of gully development and vegetation reduction. However, there is a disturbing level of ignorance concerning the causes and consequences of erosion. When asked to estimate the date of gully initiation in Brooks Nek, for instance, none of the respondents could give even rough estimates or a specific incident leading to the current dominant erosion problem. The general attitude towards the problem in their midst was one of indifference. The general belief is that erosion is caused not by themselves but by natural phenomena. Further, most respondents thought it is someone else's (e.g. government's) responsibility to ameliorate the harmful consequences associated with land deterioration and soil loss. The data for this thesis have been obtained through surveying the landscape directly over a three-year period (1994-6), and by using aerial photographs for 1982 (Mt Frere site) and 1993 (Mt Ayliff site). Detailed analysis was undertaken of chemical and physical characteristics of soil at both sites. In addition, quantitative and qualitative surveys of people in the area were attempted; to ascertain their understanding and contribution to the problem. The implications, as shown from the results of this investigation, are that the soil erosion problem at both study areas are largely independent of soil characteristics. On the contrary, this study will show that human practices are the major initial causes for soil erosion in all the cases investigated. It was found that over the years, the land use practices in both sites have changed significantly. Factors accelerating the development of erosion forms at Brooks Nek, for instance, include the footpaths and stock trails. In contrast, artificial contouring and poor gabion layout are the major causes in Chani. However, it must be mentioned that it is not always easy to separate the effects of human from natural causes. Once the effects of human activities exceed the optimum limits of soil resistance and resilience, erosion starts. Then erosion acceleration will not necessarily be confined to the original cause(s). Natural storms and floods, or even drought will contribute in accelerating the erosion rates.
Thesis (M.Sc.)-University of Natal, Pietermaritzburg, 2000.

In South Africa water is recognized as a crucial element in the battle against poverty, the cornerstone of prosperity, and a limiting factor to growth. The National Water Act 36 of 1998 recognizes that basic human and environmental needs should be met and that the use of water in all aspects must be sustainable. The Crocodile River (East) is situated in the north east of the Republic of South Africa and it is recognized as a stressed catchment in South Africa. The main impacts are domestic, industrial, agricultural, mining and afforestation activities. These activities pollute the river by discharging effluent as well as seepage from areas that support mining and intensive agriculture in to the river. The river catchment has been a center of research studies for many scientists either focusing on water quality or biological indicators separately. The aim of study was to determine the present ecological condition and the health of the Crocodile River. The objectives were to determine water quality status, identify possible sources of pollution and assess the spatial and temporal trends in ecological state. Fourteen monitoring sites were selected from the Crocodile River and its tributaries. The macro-invertebrates data were collected using the SASS 5 protocol and fish were collected using an electroshocker- catch and release method during high and low flow conditions of the year 2013. Water quality data was obtained by sampling using a polyethylene bottle from different sites within the Crocodile River and its tributaries from September 2012 until August 2013. The samples were analyzed by Mpumamanzi laboratory in Nelspruit and Waterlab in Pretoria. Additional water quality data was obtained from the Department of Water Affairs. Multivariate statistical methods were used to analyze all the data obtained. The multivariate statistical methods indicated that fish and macro-invertebrates species abundance, richness and evenness increase with the river flow distance downstream. Water temperature was one of the leading environmental variables for the structuring of fish and macro-invertebrates assemblage in the Crocodile River and its tributaries. A group formation of site during high and low flow condition by the Bray Curtis similarity and NMDS ordination indicated that many sites share similar macro-invertebrates or fish species. The one way ANOVA analysis indicated that there was no significance difference between macro-invertebrates richness and abundance during both flow conditions but there was a significance difference in fish richness and abundance between the two flow conditions. The PCA indicated that sodium has the highest physico-chemical impact amongst the physico-chemical parameters in the bi-plot followed by ammonium and nitrate. A correlation of physico-chemical parameters such as chlorine, total dissolved solid, electrical conductivity, sulphate and pH was observed. The levels of total dissolved solids and electrical conductivity were found to increase longitudinally as the river flows downstream. The dominance of single species within the macro-invertebrates and fish communities was an indication of imbalance of the communities within the sites. The presence of the macro-invertebrate family Beatidae and the fish species Chiloglanis pretoriae at sites CR3 and CR4 indicates a good water quality in the upper reaches during low flow condition as these species are sensitive to changes in water quality, while the presence of the macro-invertebrate family Pleidea and fish species Barbus viviparus at sites CR10 and KR1 during low flow condition indicated possible water pollution as these species tolerate changes in water quality and this was linked to the discharge of effluent from industrial, abandoned mines and run-offs from agricultural activities in the downstream reaches of the river. The low flow condition was dominated by sensitive species especially in the upper reaches than during high flow condition. The macro-invertebrates assessment index indicated that during low flow condition the Crocodile River was mostly at ecological class B (largely natural with few modification) above the Kwena dam, but from downstream of the dam the ecological category was in C class (moderately modified), while its tributaries are in ecological category B (largely natural with few modification). The fish response assessment index indicated that the ecological category for fish was mostly at C class (moderately modified) in the Crocodile River. The changes in macro-invertebrates communities and fish in the Crocodile River were believed to be associated with change of water quality and habitat modification due to flow modification. Agricultural activities in the upper reaches and a combination of industrial and mining activities in the middle and lower reaches of the Crocodile River were believed to be the sources of pollution that results in the change of water quality, fish and macro-invertebrates assemblage in the Crocodile River. Investing in the health of the Crocodile River is important for many Mbombela citizens and river dwellers as they rely on the functioning of the river for survival.
Environmental Sciences
M. Sc. (Environmental Science)

M.A. (Geography)
In the last century, the establishment of protected areas has become an important part of managing South Africa’s wilderness and wildlife. The notion of untouched protected areas is becoming contested in a time when developing nations are seeking to improve quality of life for their citizens. With the promulgation of the NEM: PAA of 2003, resource sharing with local rural communities has become an important policy guideline for protected area management authorities. An example of a protected area where management has sought to facilitate resource access in neighbouring rural communities is Mkuze Game Reserve (MGR), now part of the greater Isimangaliso Wetland Park. This study uses a mixed methods approach to combine local rainfall records, census archives, and remotely sensed data with qualitative interview data in order to investigate spatial, social and quantitative aspects of anthropogenic land-cover change between 1979 and 2008. If the proposed balance between development and conservation is to be achieved in this ecologically diverse locale, a deeper understanding of contextual relationships between human activity and environmental change will be vital. Results showed that while rainfall was cyclic, natural land-cover decreased consistently in densely populated rural areas. In contrast, protected areas such as MGR showed little change in land-cover indicating that human activity and cattle have a significant impact on the land surface in the Mkuze Region. While many local residents in the rural communities living adjacent to MGR recognise their role in the achievement of development-conservation objectives, a history of exclusion from MGR has left a legacy of negative perceptions towards MGR in these communities. In order to mitigate natural land-cover loss, local communities must have positive perceptions about MGR and become involved in its management. Useful inferences have been made from the results regarding the management of human population and activities around the borders of protected areas in South Africa.

M.Ed.
The literature study cleary revealed that the continuous interaction of human beings with their environment is beneficial both to the environment and to human beings, but with a price attached which has to be paid by the environment. The price paid is evident in the environmental problems with which the world is currently faced. The environmental crisis is characterised by an increase in the human population which is threatening the earth at an alarming rate and which leads in turn to soil erosion, air and water pollution and the application of destructive pressure on resources. The habitats of natural life forms are currently in the process of disappearing and certain species have already become extinct (Smith, Carlson, Masters & Donaldson, s.a.:3). UNESCO-UNEP (1988:25/30/31) corroborated the above by indicating that the primary problem involved in respect of all environmental problems is the population explosion, which places more pressure on resources (plants, animals, energy, water, soil and air). The interaction of human beings with nature has, in fact, entailed certain advantages for nature, but at the same time has also created new problems which have plunged the environment into a crisis. There is ample proof to be found in literature that an environmental crisis has been identified and that possible solutions to the problem have been found. The call to action culminated in 1972 in the Stockholm Conference, which was attended by world government structures. The outcome of this was the Belgrade Charter of 1975. Subsequently, the awakening of environmental awareness reached a catalytic phase in 1977 with the Tbilisie Conference which laid the foundation for the establishment fo principles, objectives and aims for Environmental Education. The central role which should be played by the educationist in this connection, is clearly outlined: Agenda 21 (Chapter 36): "...education is critical for the promotion of sustained development" (EEP1, 1995b:12). In every respect, South Africa forms part of this international environmental issue. The fact that this is, in fact, generally realised is evident in the White Paper on Environmental Education of 1989, which was a result of the meeting on Environmental Education at Treverton College, Mooi River. The term Environmental Education is now recognised as a full-fledged concept in its own right in formal education (White Paper on Education and Training (1995:20); the Reconstruction and Development Programme (RDP) document (1994); the International Development Research Centre (IDRC) document (1994:6); and the Committee on teacher eduction policy [norms and standards for teacher education] (Cotep) document (1995:41)), as quoted by Joubert & S teen kamp (1995:26/27). In this way, the problem of the community has also become the problem of the school curricula. It should therefore be accepted that schools should accord a high priority to environmentally-related problems in the community. The central role played by the teacher in environmental awareness is corroborated by various documents and writers. Two quotations will suffice in this connection: The Brutland report of 1987 states the problem as follows: '... the world's teachers ... have a crucial role to play in helping to bring about the extensive social changes needed for sustainable development" (EEPI, 1995b:12). Knapp (1975:209), as quoted by Raath (1994:4) states in this connection: Teachers and students alike can teach a lot about care and respect for the environment. They can also teach disregard and destruction of the earth": In this study, the status of the knowledge of aspirant teachers was revealed in respect of six environmental issues, namely, overpopulation, air pollution, water, soil, and plant and animal species. The relationship between factors such as external responsibility, restriction on individuals and responsibility for environmental education were also investigated. The respondents were comprised of aspirant teachers (final-year student teachers) of three South African Universities, namely the Rand Afrikaans University, the University of the Orange Free State and Vista (Free State) in the following study fields: Languages, Mathematics, Humanities, Economics and Physical Sciences, as well as other fields.

The research on "The healing touch of Nature in the context of pastoral therapy" illustrated the role of Nature in bringing healing to individual people in an urban context in South Africa. The role Nature plays in connecting the participants with God and how this positively affects their daily lives, has been central in the research. Through their interaction with Nature, the participants lead richer, more meaningful lives and experience a greater sense of well-being. Nature stimulates and elicits response as the digital world is set against the calm energy and "warmth of the earth". Through connection with God in Nature, the participants translate the healing metaphor into more tangible "language" – the "beautifying effect" of Nature. It is not the words that captivate, but the thoughts which the words carry. Mostly the research tells the story of the experiential knowledge of living in the intimate presence of God and the healing power of God‘s presence. This narrative is about a kind of knowing that can only come through Nature. The research offers a way of seeing Nature that could influence pastoral care today.
Practical Theology
M. Th. (Practical Theology with specialisation in Pastoral Therapy)

Invasive alien plants in South Africa have become one of the major environmental problems affecting millions of hectares of productive and conservation land. Acacia mearnsii, black wattle, is a key invader species along the eastern escarpment. The major rivers of the country rise on this escarpment and the water catchments have been severely affected by black wattle invasion that has reduced water flow and increased soil erosion. The government introduced the Working For Water (WFW) programme in 1995 in order to address the problem of invasive alien plants in the country while, at the same time, creating job opportunities. This study researches the implementation of WFW projects in the small mountain village of Hogsback in the Amatola Mountains since their inception in 1996/97. The main research question posed by this study is: "What factors support or threaten sustainable environmental management through the Working For Water Programme in the Hogsback area?" It gives a history of the environmental changes since 1800 as a result of human disturbance. The social history of the area is described from the viewpoint of the social and cultural disturbances that led to the present day community conflict. The interface between the environmental and social history is then discussed. Semi-structured interviews were held with twenty eight members of the Hogsback community to solicit their views and perceptions of the WFW projects and the role of civil society and government in sustainable environmental management of invasive alien vegetation. Environmental and development plans undertaken for the Hogsback area were analysed. The results were then discussed in terms of the national and regional goals of WFW. The findings indicated that most of the goals of WFW have not met with great success in Hogsback. A number of limiting factors were identified, the primary one being community conflict, both within and without WFW. As the community struggles to address the aspirations of the landless and economically deprived black population while, at the same time, addressing the fears of the white population, the rapid rate of societal, governance and legislative change since the election of the democratic government in 1994 contributed to an environment of uncertainty. Within WFW, there are management problems that have limited the success achieved in clearing invasive alien species in the catchment. The lack of long-term strategic plans, sufficient accurate data and hands-on management are shortcomings in the local projects. The likely long-term effects of large scale clearing in this disturbed environment, without proper rehabilitation, are serious concerns.
Thesis (M.Env.Dev.)-University of Natal, Pietermaritzburg, 1999.

Surface water pollution is prevalent in numerous areas of central Roodepoort mainly due to gold mining activities. The surface water quality for the Bosmontspruit, Russell’s Stream and the New Canada Dam was assessed from October 2010 to March 2011. Physical, chemical and biological characteristics of the water were determined for 8 monitoring points and the results obtained were compared with the In-stream water quality guidelines for the Klip River catchment and the South African Water Quality Guidelines. A trend noticed throughout the sampling period was the non-compliance in the levels of total dissolved solids (TDS) and dissolved oxygen. The results indicated that concentrations of iron, aluminium, nickel, manganese and potassium were above the limit across the Bosmontspruit and Russell’s stream. There was also significant evidence of excessive faecal coliform and ammonium pollution in the Bosmontspruit. During the monitoring period it was noted that water from these streams were utilised for crop irrigation, bathing, livestock and human consumption and may pose a health hazard due to poor water quality.
Environmental Sciences
M.Sc. (Environmental Science)

Water Quality Management is one of the critical challenges currently facing South Africa. The triad of water resource management, socio- economic development and environmental sustainability are key issues that require balance and compromise. The effects of anthropogenic activities on the Blesbokspruit catchment were examined. Water samples were collected from nine strategically selected sites along the stream for a period of ten months in six weekly intervals and analysed for physio-chemical, selected trace metals and microbial entities. Results revealed that variables of concern were Electrical Conductivity (EC), Total Suspended Solids (TSS), Nitrates, Phosphates, Sulphates and Chemical Oxygen Demand (COD). Mean levels of these parameters in this order ranged from 93.0-146.63mS/m; 11.25-39mg/L; 0.16-2.01mg/L; 0.5-0.96mg/L; 118.63-379.5mg/L and 15.0-34.0mg/L respectively. Levels of E. coli and F. coliforms also ranged from 19.13- 43999.125 cfu/100mL and 20.63-16878.5 cfu/100mL respectively which were of concern. Levels of analysed trace metals were tolerable except for Fe with a range of 0.04- 0.73mg/L. Generally, the results from this study indicate that the river is contaminated and therefore not suitable for direct human consumption as well as for irrigation purposes.