Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2009. / This study combines qualitative and quantitative techniques in an inquiry into the influence of rural tourism on the development and structure of Sutherland from 2001 till 2005. Sutherland, like most small rural towns in the Central and Western Karoo, is/was in the process of decline. Rural tourism is seen as a solution to curb the process of decline. The study investigates this assumption by analyzing the positive and negative impacts of tourism on the economic, social and environmental spheres of Sutherland and looks at concomitant structural changes. Special emphasis is placed on the changing nature of Sutherland’s reason for existence and the dualistic processes of degradation on the one side and tourism development on the other. These complex time-spatial and site-specific trends are analyzed and recommendations are made for the management of the tourism industry of Sutherland.

Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: The research problem addressed in this study is how to ascertain the primary determinants of house prices in Hout Bay. This overarching aim encompasses three interwoven aspects. The research attempts first to determine which factors generally affect property prices in Hout Bay; second, to assess the extent to which individual factors affect house prices; and third, to discover the role variables collectively play in determining house prices in Hout Bay. Four objectives emerge from this subdivision of the aim, namely identify potential house priceinfluencing factors in Hout Bay; quantify the selected locational variables; statistically analyse the variables to distinguish the significant and insignificant ones; and use regression analysis to deduce the collective and individual influences of the significant factors on house prices. Structured interviews were conducted with representatives of 12 estate agencies in Hout Bay to uncover factors affecting the local property market. Through insights gleaned from the literature, manipulation of municipal valuation and cadastral data and the structured interviews, 39 structural and site-related variables, 18 distance variables and 11 socioeconomic variables were constructed. Several preliminary and descriptive analyses performed on the variables gave a general impression of the distribution of data and assisted in identifying statistically significant variables for determining house prices. These analyses included measures of central tendency (mean, median and mode); measures of dispersion (minimum and maximum values, range, standard deviation, skewness and kurtosis); the compilation of histograms for each variable; analysis of variance (ANOVA) on nominal data variables; and the creation of 2D scatterplots for ordinal data variables. Spearman rank order correlation was performed on the nominal and ordinal data variables. Statistically weak variables and those exhibiting signs of multicollinearity were eliminated. A best-subsets regression analysis was executed on the remaining variables. The regression model performed adequately, explaining close to 54% of the variation in house prices in Hout Bay. Among the individual factors, the size of the erf was the strongest predictor of the house price dependent variable, house size was the second most important factor, while distance to busy roads and quality of the house shared similar importance. Regression residuals were also mapped to expose spatial patterns. It is recommended that comparable research be conducted on a citywide scale, that variables be quantified differently and that new GIS techniques be incorporated in future studies. / AFRIKAANSE OPSOMMING: Die navorsingsprobleem wat hierdie studie aanspreek, is hoe om vas te stel wat die primêre faktore is wat huispryse in Houtbaai bepaal. Hierdie oorkoepelende doelwit vervat drie onderling verwante aspekte. Eerstens, poog die navorsing om te bepaal watter faktore in die algemeen huispryse in Houtbaai beïnvloed; tweedens, om te assesseer tot watter mate individuele faktore huispryse affekteer; en derdens, om te ontdek watter kollektiewe rol veranderlikes in die bepaling van huispryse in Houtbaai speel. Vanuit hierdie onderverdeling van die navorsingsdoelwit het vier doelstellings ontstaan, naamlik identifiseer die potensiële faktore wat huispryse in Houtbaai beïnvloed; kwantifiseer die geselekteerde liggingsveranderlikes; voer verskeie analises uit op die veranderlikes om die beduidende en onbeduidende veranderlikes te identifiseer; en benut regressie-analise om die kollektiewe en individuele invloed van beduidende faktore op huispryse in die studiegebied vas te stel. Gestruktureerde onderhoude is met verkoopslui van 12 eiendomsagentskappe in Houtbaai gevoer om die faktore te bepaal wat die plaaslike eiendomsmark beïnvloed. Deur middel van insigte verkry uit die akademiese literatuur, manipulasie van munisipale waardasie- en kadastrale data en die gestruktureerde onderhoude is 39 strukturele en liggingsverwante veranderlikes, 18 afstandsveranderlikes en 11 sosio-ekonomiese veranderlikes geskep. Verskeie analises wat op die veranderlikes uitgevoer is, het ‘n algemene indruk van die verspreiding van die data verskaf en het die identifisering van statistiesbeduidende veranderlikes bevorder. Hierdie analises het maatstawwe vir sentrale neiging (rekenkundige gemiddelde, mediaan en modus); maatstawwe vir dispersie (minimum en maksimum, variasiewydte, standaardafwyking, skeefheid en kurtose); die samestelling van histogramme vir elke veranderlike; die analise van variansie (ANOVA) op veranderlikes met nominale data; en die skep van 2D-spreidingstippe vir veranderlikes met ordinale data behels. Spearman se rangorde korrelasie is op beide die nominale en ordinale data uitgevoer. Statistiesonbeduidende veranderlikes, of dié wat tekens van multikollineariteit met ander veranderlikes getoon het, is geëlimineer. ‘n Beste deelversameling regressie-analise is uitgevoer op die oorblywende veranderlikes. Die regressiemodel het gepaste resultate behaal deurdat dit byna 54% van die variasie in Houtbaai se huispryse verklaar het. Van die individuele veranderlikes was die grootte van die erf die sterkste voorspeller van die huisprys afhanklike veranderlike, huisgrootte was die tweede belangrikste faktor, terwyl afstand van besige paaie en die kwaliteit van die huis soortgelyke invloed gedeel het. Die regressiemodel se residu’s is gekarteer om ruimtelike patrone vas te stel. Dit word aanbeveel dat soortgelyke navorsing op ‘n stadswye skaal uitgevoer word, dat die veranderlikes op ander wyses gekwantifiseer word en dat nuwe GIStegnieke in toekomstige studies aangewend word.

Thesis (MSc)--Stellenbosch University, 2004. / ENGLISH ABSTRACT: Multi-criteria decision-making (MCDM) is a set of techniques designed specifically for the analysis of complex problems. Geographical Information Systems (GIS) focus on spatial problem-solving and spatial analysis. The integration of these methodologies offers a powerful approach to decision making. Despite the fact that most spatial decision problems are multi-criteria problems by nature, the process of MCDM is not well established or effectively integrated into the field of spatial analysis and GIS. This research focuses on bridging the gap between MCDM and GIS. To this end, a generic MCDM extension was designed and implemented in ArcView. As a result, a first version MCDM extension is offered. The extension expands ArcView's functionality with a limited set of MCDM methods. This functionality is illustrated on two problems involved with developing the tourism potential at Coutada 16 Wildlife Reserve in Mozambique. The MCDM extension facilitates procedures that allow the evaluation of spatial problems and includes the ability to deal with both raster and vector data. This system offers a generic problemsolving environment, which can be used to evaluate geographical problems of any nature. This research identifies a number of improvements to the developed functionality and successfully illustrates the potential problem-solving capabilities associated with MCDM integrated with ArcView. / AFRIKAANSE OPSOMMING: Multi Kriteria Besluitneming (MKBN) is n versameling metodes vir die analise van komplekse probleme. Geografiese Inligtingstelsels (GIS) fokus op geografiese probleemoplossing en analise. Die integrasie van hierdie twee metodologieë bied 'n kragtige benadering tot besluitneming. Ten spyte daarvan dat die meeste geografiese probleme in wese meerveranderlik van aard is, is MKBN nie effektiefbinne die raamwerk van GIS geïntegreer nie. Hierdie studie fokus op die oorbrugging van die gaping tussen MKBN en GIS. Met hierdie doel voor oë is 'n generiese MKBN-uitbreiding vir ArcView ontwerp en geïmplementeer. Die resultaat is 'n eerste- weergawe MKBN-uitbreiding. Die uitbreiding brei ArcView se funksionaliteit uit om 'n beperkte versameling MKBN-metodes in te sluit. Die nuut ontwikkelde funksies word geïllustreer aan die hand van twee probleme wat die ontwikkeling van die toerismepotensiaal vir die Coutada 16 Wildreservaat in Mosambiek aanspreek. Die uitbreiding maak voorsiening vir 'n MKBN-evaluasie van geografiese probleme en besit die vermoë om beide vektor- en roosterdata te analiseer. Hierdie stelsel verskaf 'n generiese omgewing vir probleemoplossing wat gebruik kan word om byna enige geografiese probleem te analiseer. Die studie identifiseer verbeteringe op en uitbreidings van die ontwikkelde funksies en slaag daarin om die potensiaal van probleemoplossing wat deur die integrasie van MKBN-tegnieke met ArcView moontlik gemaak word, te illustreer.

Thesis (MSc)--Stellenbosch University, 2004. / ENGLISH ABSTRACT: Grazing management in the semi-arid communal areas of Namaqualand is investigated in this study. Paulshoek, situated in the Leliefontein Communal Reserve area, is delineated as the study area and consists of 20 OOOha.Cattle farming is practised by most households primarily on a subsistence basis. It is also used as a source of income when financial problems arise. The management of grazing-land in terms of formal rules and regulations is non-existent with only mutual relationships between farmers. The aim of this study is to develop a spatial framework for the management of a sustainable grazing regime with the aid of Geographic Information Systems (GIS) technology. This aim is reached through three overlapping goals which are researched individually. The goals are to create a spatial image of the physical resource base as well as resource usage and from this the development of a computerised (Excel spreadsheet) spatial management framework for sustainable grazing management. Through the use of existing data available from the National Botanical Institute (NB!) as well as other sources and with the aid of GIS technology, coupled with Indigenous Knowledge, these goals were reached. The stockpost as individual entity is studied to give a broader understanding of how the herdsmen see their immediate environment. The grazing management system, as presented in this thesis, consists of a simple Excel Spreadsheet, with inputs from GIS technology and Indigenous Knowledge. The area is overgrazed, as is seen in the widespread occurrence of kraalbos cross the Paulshoek landscape. The recommendations are that this management system should be implemented, which could minimize the futher overgrazing of the area. The management system relies heavily on the cooperation of the community and the integration of existing management systems and policies. It will give a more detailed account of who may own how many stock and where they may graze in the communal rangelands which will also help in the establishment of new permanent waterpoints in the area. / AFRIKAANSE OPSOMMING: Weidingsbestuur in die semi-ariede gemeenskaplike gebiede van Namakwaland is in hierdie studie ondersoek. Paulshoek, geleë in die Leliefontein Gemeenskapsreservaat gebied, word as studiegebied afgebaken en beslaan ongeveer 20 OOOha.Veeboerdery word deur meeste van die huishoudings primêr as bestaansboerdery beoefen. Dit word ook gebruik as 'n bron van inkomste wanneer finansiële probleme ondervind word. Die bestuur van weivelde in terme van formele reëls en regulasies is glad nie ter sprake nie, slegs onderlinge verhoudinge tussen veeboere bestaan. Die doel van hierdie studie is om 'n ruimtelike raamwerk te ontwikkel vir die bestuur van 'n volhoubare weidingsregime deur die aanwending van Geografiese Inligting Stelsels (GIS). Hierdie doel word behaal deur drie oorkoepelende doelwitte wat elk afsondelik behandel word. Die doelwitte is om 'n ruimtelike beeld van die fisiese hulpbronbasis asook die benuttingsregime van die hulpbron te skep, en hieruit 'n rekenaar-gesteunde (Excel sigblad) ruimtelike bestuursraamwerk vir volhoubare weidingsbestuur te ontwerp. Deur gebruik te maak van bestaande inligting afkomstig vanaf Nasional Botaniese Instituut (NBI) asook ander bronne en met die koppeling van GIStegnologie en Inheemse Kennis (IK) is die doelwitte bereik. Die veepos word as entiteit behandel om 'n beter verstandhouding op te bou van hoe die veewagter sy onmiddelike omgewing bestuur. Die weidingsbestuurstelsel, soos voorgestel in hierdie tesis, bestaan uit 'n eenvoudige Excel sigblad, gekoppel aan GIS-tegnologie en Inheemse Kennis. Die gebied is oorbeweid, soos gesien kan word aan die verspreiding van kraalbos regoor die landskap van Paulshoek. Die aanbevelings is dat die bestuurstelsel geïmplementeer moet word om te verhoed dat die gebied verder onderhewig sal wees aan intensiewe beweiding. Die bestuurstelsel berus op die samewerking van die gemeenskap en die integrasie van bestaande bestuurstelsels. Dit sal tot gevolg hê 'n meer volledige opname van wie hoeveel vee mag besit en wie waar mag vestig in die weiveld gebied, wat gevolglik ook die skepping van nuwe permanente waterbronne sal vergemaklik.

Thesis (MA)--Stellenbosch University, 2000. / ENGLISH ABSTRACT: European cities offer a variety of attractions, activities and facilities to tourists. One component of tourism in this urban context is cultural tourism which is a high potential growth sector within the tourism industry. Cultural tourists travel to cities mainly to see the most important and well known cultural attractions, to take part in cultural festivities, to view the cultural treasures of the cities and to attend performances and exhibitions. Other functions and activities such as retail functions and types also occur in the vicinity of the important cultural attractions of a city. Amongst these activities and functions are shops, cafés and restaurants. In an area of a city where cultural attractions and retail types coexist, the possibility exits that a spatial relationship between cultural tourism and retailing may occur in the sense that the tourists who visit these attractions may support the retail establishments in the vicinity of cultural attractions. The city of Leuven in Belgium is a typical West European city with a variety of cultural tourist attractions as well as functions which can be supportive of cultural tourism. These functions include shops, cafés and restaurants. An investigation was conducted to establish whether a spatial relationship exists between cultural tourism and retail activities in the part of Leuven known as the Ring. The geographical information systems TransCad, Arc/Info en ArcView were used for the processing and analysis of retail and cultural tourism data gathered in the Ring of Leuven. Three analytical procedures were performed separately for shops, cafés and restaurants. These procedures comprised (a) the determination of the numbers and types of supportive functions around the most important cultural-historical tourist attractions, (b) the determination of the numbers and types of supportive functions along the routes to cultural-historical sites from tourist points of origin, and (c) the determination of the numbers and types of supportive functions along guided-walk routes in the city. The analysis results show that a (spatial) relationship does exist between retail and cultural tourism in the Ring of Leuven. On average 44% of the retail functions (shops, cafés and restaurants) are located within a distance of up to saam from the six most important cultural building attractions in Leuven (procedure 1). Retail functions on guided-walk routes totalled 48% with cafés and restaurants being the most abundant (procedure 3). Only 19% of retail functions are located between points of origin and cultural building attractions (procedure 2). A more detailed study should be conducted to establish the exact nature of the spatial relationship which exists between retail and cultural tourism in the Ring of Leuven. / AFRIKAANSE OPSOMMING: Europese stede bied 'n reeks attraksies, aktiwiteite en fasiliteite vir toeriste. Een komponent van die breër term toerisme in hierdie stedelike konteks is kulturele toerisme wat 'n baie sterk groeisektor binne die toerismemark is. Kulturele toeriste besoek stede hoofsaaklik met die doelom die belangrikste en bekendste kulturele attraksies te besigtig, om aan kulturele feeste deel te neem, die kunsskatte van stede te betrag en om teateropvoerings en tentoonstellings by te woon. In die nabyheid van die belangrikste kulturele attraksies van 'n stad kom ook ander funksies en aktiwiteite soos kleinhandelsfunksies en -tipes voor. Hieronder ressorteer onder andere winkels, cafés en restaurante. In die gedeelte van 'n stad waar kulturele attraksies en kleinhandelstipes naby mekaar voorkom, kan die moontlikheid bestaan van 'n ruimtelike verwantskap tussen kulturele toerisme en kleinhandel, in dié sin dat toeriste wat die attraksies besoek, moontlik ook die kleinhandelstipes wat in die nabyheid van die kulturele attraksies voorkom, salondersteun. Die stad Leuven in België is 'n tipiese voorbeeld van 'n Wes-Europese stad met 'n verskeidenheid kulturele toeriste-attraksies asook funksies wat kulturele toerisme ondersteun. Hierdie ondersteunende funksies sluit winkels, cafés en restaurante in. In die deel van Leuven wat as die Ring bekend staan, is ondersoek ingestel na die voorkoms, al dan nie, van 'n ruimtelike verwantskap tussen kulturele toerisme en kleinhandel. Die geografiese inligtingstelsels TransCad, Arc/Info en ArcView is ingespan vir die verwerking en analise van data oor kleinhandel en kulturele toerisme in die Ring van Leuven. Drie ontledingsprosedures is afsonderlk uitgevoer vir winkels, cafés en restaurante. Hierdie prosedures behels (a) die bepaling van die aantal en tipes ondersteunende funksies rondom die belangrikste kultuurhistoriese toeristeattraksies; (b) die bepaling van die aantal en tipe ondersteunende funksies langs die roetes tussen die toeriste-oorsprongpunte en die belangrikste kultuurhistoriese toeriste-attraksies; en (c) die bepaling van die aantal en tipe ondersteunende funksies langs begeleide stadswandelroetes. Die analiseresultate wys dat 'n verwantskap tussen kleinhandel en kulturele toerisme, ruimtelik-gesproke, wel in die Ring van Leuven bestaan. Só is gemiddeld 44% van die kleinhandelsfunksies (winkels, cafés en restaurante) tot op In afstand van SOOmvanaf die ses belangrikste kulturele gebou-attraksies in Leuven geleë (prosedure 1). Ook kom 48% van die kleinhandelsfunksies langs die roetes van begeleide stadswandelinge voor. Hier is dit egter die cafés en restaurante wat die grootste proporsies uitmaak (prosedure 3). 'n Gemiddelde proporsie van slegs 19% van die kleinhandelsfunksies kom tussen oorsprongpunte en die belangrikste kulturele gebou-attraksies voor. 'n Meer omvattende studie moet onderneem word om vas te stel watter tipe ruimtelike verwantskap tussen kleinhandel en kulturele toerisme binne Leuven se Ring voorkom.

Thesis (MA.)--Stellenbosch University, 2001. / ENGLISH ABSTRACT: There are many reasons to conserve fynbos. Not only does fynbos form part of the Cape floral kingdom, one of the richest floral kingdoms in the world, but the contribution that it makes to the regional economy through utilisation, education, recreation and tourist opportunities is immeasurable. Fire plays an integral role in fynbos ecosystems. According to Van Wilgen, Richardson & Seydack (1994: 322) " ... managing fynbos equates to managing fire". Therefore managers need accurate fire information about a fynbos area to manage it properly. This is where satellite remote sensing can provide the manager with useful information about the fire regime. In other words, satellite remote sensing can help a manager establish where and when an area has burnt. Using readily available satellite data, this study attempts to establish (through comparison) what techniques would be most suitable and affordable to compile a fire information database. Landsat Thematic Mapper data from 1990 - 1996 of the southwestern Cape was used and compared with existing fire records of the area. The results show that techniques such as supervised and unsupervised classification are reliable in identifying burnt areas, but a major drawback of these techniques is that they require a large amount of user input and knowledge. They are thus not regarded as simple or easily repeatable. - The' more simple techniques like image differencing and image ratioing were also found to be reliable in identifying burnt areas. These techniques require less user input and in some instances less data (image bands) to produce similar (or better) results than supervised and unsupervised classification techniques. The results show that differencing temporally different Images, obtained from applying principle components analysis, produces reliable results with very little confusion and little user input. Using such a technique could enable users to procure only two bands of Landsat data and still produce reliable fire information for managing a fynbos ecosystem. / AFRIKAANSE OPSOMMING: Daar is verskeie redes waarom fynbos bewaar moet word. Nie net vorm dit deel van een van die rykste blommeryke in die wereld nie, maar die bydrae wat dit tot die streeksekonomie maak, deur die benutting van veldblomme en die geleenthede wat dit bied vir toerisme en ontspanning, is enorm. Vuur speel 'n belangrike rol in die bestuur van fynbos ekosisteme. Soos beklemtoon deur Van Wilgen, Richardson & Seydack (1994: 322) se stelling: " ... managing fynbos equates to managing fire". Om hierdie rede is dit belangrik dat 'n bestuurder akkurate inligting oor die verspreiding van veldbrande moet he. Satellietafstandwaarneming kan hier 'n belangrike rol speel deur sulke inligting te verskaf Deur gebruik te maak van maklik bekombare satellietdata, poog hierdie studie om te bepaal (d.m.v. vergelyking) watter tegnieke die mees geskikte is in terme van bekostigbaarheid en gebruikersvriendelikheid. Landsat Thematic Mapper data van 1990 tot 1996 van die suidwes-Kaap is gebruik en vergelyk met bestaande branddata van die studiegebied. Daar is gevind dat tegnieke soos gerigte en nie-gerigte klassifikasie in staat is om gebrande dele betroubaar uit te ken. Hierdie tegnieke verg egter baie insette en kennis van die gebruiker en is ook nie maklik om jaar na jaar te herhaal nie. Daarom word hierdie tegnieke nie aanbeveel nie. Daar is gevind dat die eenvoudiger tegnieke soos veranderingsanalise ook gebrande dele betroubaar kon uitken. Hierdie tegnieke het die voordeel dat die gebruiker nie baie' kennis van die gebied hoef te he nie en ook nie so baie insette hoef te lewer nie. Hierdie tegnieke word bo gerigte en nie-gerigte klassifikasie aanbeveel. - Die resultate dui daarop dat betroubare resultate verkry kan word deur tempo reel verskillende beeIde, verkry deur hoofkomponentanalise, van mekaar af te trek. Hierdie tegniek vereis relatief min gebruikersinsette en daar kan selfs met slegs twee Landsat bande gewerk word. So 'n tegniek kan beslis 'n bekostigbare en effektiewe manier wees om nodige inligting vir die bestuur van 'n fynbos ekosisteem te bekom.

Thesis (MA)--University of Stellenbosch, 2002. / ENGLISH ABSTRACT: A major concern for Energex, Australia's largest energy utility in South East Queensland, is the escape of natural gas out of their reticulation systems. Within many of the older areas in Brisbane, these networks operate primarily at low and medium pressure with a significant percentage of mains being cast iron or steel. Over many years pipes in these networks have been replaced, yet reports show that unaccounted for gas from the same networks remain high. Furthermore, operation and maintenance budgets for these networks are high with many of these pipes close to the end of their economic life. When operation and maintenance costs exceed the costs of replacement, the Energex gas utility initiates projects to renew reticulation networks with polyethylene pipes. Making decisions about pipe renewal requires an evaluation of historical records from a number of sources, namely: • gas consumption figures, • history of leaks, • maintenance and other related cost, and • the loss of revenue contributed by unaccounted for gas. Financial justification of capital expenditure has always been a requirement for renewal projects at the Energex gas utility, however the impact of a deregulation in the energy utility market has necessitated a review of their financial assessment for capital projects. The Energex gas utility has developed an application that evaluates the financial viability of renewal projects. This research will demonstrate the role of GIS integration with the Energex financial application. The results of this study showed that a GIS integrated renewal planning approach incorporates significant benefits including: • Efficient selection of a sub-network based on pipe connectivity, • Discovery of hidden relationships between spatially enabled alphanumeric data and environmental information that improves decision making, and • Enhanced testing of proposed renewal design options by scrutinizing the attributes of spatial data. / AFRIKAANSE OPSOMMING: 'n Groot bron van kommer vir Energex, Australië se grootste energieverskaffer in Suidoos- Queensland, is die verlies van natuurlike gas uit hul gasdistribusie netwerke. In 'n groot deel van ouer Brisbane opereer hierdie netwerke hoofsaaklik teen lae en medium druk, met 'n aansienlike persentasie van hoofpyplyne wat uit gietyster of staal bestaan. Al is sommige pyplyne in hierdie netwerke met verloop van tyd vervang, maak verslae dit duidelik dat 'n groot deel van die gas in hierdie netwerke steeds langs die pad verlore gaan. Die operasionele - en onderhoudsbegrotings vir hierdie netwerke is boonop hoog, met 'n groot persentasie van die pyplyne wat binnekort aan die einde van hulle ekonomiese leeftyd kom. Wanneer operasionele- en onderhoudsonkostes die koste van vervanging oorskry, beplan Energex se gasvoorsienings-afdeling projekte om verspreidingsnetwerke te hernu met poli-etileen pype. Om sinvolle besluite te neem tydens pyplynhernuwings, word verskeie historiese verslae geraadpleeg, insluitend: gasverbruikvlakke, lekplek geskiedenis rekords, onderhoud- en ander verwante onkostes, asook die verlies van inkomste weens verlore gas. Alhoewel finansiële stawing van kapitale uitgawes nog altyd 'n voorvereiste was tydens hernuwingsprojekte by Energex, het die impak van privatisering op die energieverskaffingsmark dit noodsaaklik gemaak om hulle finansiële goedkeuringsproses vir kapitaalprojekte te hersien. Energex het dus 'n sagteware toepassing ontwikkel wat die finansiële gangbaarheid van hernuwingsprojekte evalueer. Hierdie navorsing sal die moontlike integrasie van geografiese inligtingstelsels (GIS) met dié van Energex se finansiële evalueringspakket demonstreer. Die resultate van hierdie studie toon dat die integrasie van GIS in die hernuwingsproses aansienlike voordele inhou, insluitende: • die effektiewe seleksie van sub-netwerke, gebaseer op pyp konnektiwiteit, • die ontdekking van verskuilde verwantskappe tussen geografies-ruimtelike alfanumeriese data en omgewingsinligting, wat besluitneming vergemaklik, en • verbeterde toetsing van voorgestelde hernuwingsopsies deur die indiepte-nagaan van geografiesruimtelike elemente.

Thesis (MA)--Stellenbosch University, 2003. / ENGLISH ABSTRACT: Rural tourism and agritourism are in their infant stages in South Africa. It benefits the farmer, the local community, the rural area, the tourist and the country. It is therefore a viable option but requires more research, management, planning and control for it to be successful. Many agritourism ventures are not as successful as they should be. The problem is that farmers/landowners do not research the demand for tourist products before they deliver them and do not know whom they are catering for. To stay competitive, the tourists' characteristics ought to be understood. This would provide insight into what facilities and services to supply, what resources to utilise and how to promote the agritourism destination. The aim of this study was to segment the potential and practising agritourists into different clusters, according to their preferences, and to investigate the clusters' characteristics and behaviours. The objectives were to: 1. Investigate the potential and practising agritourists' socio-economic, demographic and travel characteristics. 2. Rate all the attractions, activities and services according to their popularity. 3. Clarify the preferences of these tourists, concerning attractions and activities, by combining similar ones. 4. Divide the tourists into clusters of similar preferences. 5. Compare the socio-economic, demographic and travel characteristics of the different clusters of tourists. 6. Produce a set of guidelines for entrepreneurs/farmers/landowners, as to what tourist products they should supply or develop, and for whom, and how they should market them. This study entailed distributing questionnaires to potential and practising agritourists at shopping centres and farms involved in agritouri'swimming', 'picnicking', 'scenic drives', 'dams/lakes/pans' and 'small game' were the most popular agritourism attractions and activities. Factor analysis was used to reduce the number of variables by combining like variables (attractions) and cluster analysis was utilised to segment the respondents into five clusters of tourists with similar preferences for agritourism attractions and activities. Cross tabulation, frequencies and descriptive statistics were used to describe these different clusters. These groups of tourists were described according to their demographic, socio-economic and travel characteristics. Segmenting tourism markets and compiling profiles of the tourists within each sub-market has proved to be advantageous. Once the demands of the tourists are known, the appropriate facilities and number of facilities can be developed. Knowing who the tourists are and where to target them, will lead to better marketing, planning and promotion of the destination. Customer satisfaction will be increased, as it is known exactly who must be catered for, thereby resulting in repeat visits. The five clusters of tourists were: 'general nature tourists'; 'urban tourists'; 'hard outdoor adventure tourists'; 'visual or soft outdoor adventure tourists'; and 'agritourists'. All these tourists, except 'urban tourists', are excellent potential agritourists. The results of this study were used to compile guidelines for entrepreneurs. These guidelines could help them in deciding who to target (which clusters), what agritourism products to develop (attractions, activities and services) and how to market them (means of advertising). Appropriate accommodation types and the availability of equipment and facilities for activities also act as attractions. This study demonstrates an inexpensive method of gathering information about tourists, thereby improving marketing and planning approaches. It illustrates how the potential and practising agritourists can be divided into sub-markets. The agritourism market is a heterogeneous market and must therefore be segmented. Any entrepreneur can use the results of this market segmentation. Any future studies, similar to this one, could consist of a sample much larger. As this study was primarily based in the Western Cape, similar research should be executed in other distinct regions. It would be illuminating to see how the groups of agritourists vary according to geographical areas. / AFRIKAANSE OPSOMMING: Landelike en agritoerisme is in hulontluikende fase in Suid-Afrika. Dit bevoordeel die boer, die plaaslike gemeenskap, die landelike streek, die toeris en die land. Dit is 'n lewensvatbare opsie maar benodig meer navorsing, bestuur, beplanning en beheer om suksesvol te wees. Baie agritoerisme ondernemings is nie so geslaagd as wat dit kan wees nie. Die probleem is dat die boere/grondeienaars nie die nodige navorsing doen omtrent die aanvraag na 'n produk voordat hul dit aanbied nie, en weet ook nie watter toerismesegment hul wil bevredig nie. Om mededingend te bly moet die toeris se eienskappe verstaan word. Dit sal insae gee in watter fasiliteite en dienste om te voorsien, asook watter bronne om te benut om die agritoerismedestinasie te promoveer. Die doel van hierdie studie was om potensiële en praktiserende agritoeriste te groepeer in verskillende segmente volgens hulle voorkeure en groeps gedrag. Die doelwitte was om: 1. Potensiële en praktiserende agritoeriste se sosio-ekonomiese, demografiese en reiseienskappe te ondersoek. 2. Die rangorde van attraksies, aktiwiteite en dienste volgens gewildheid te bepaal. 3. Voorkeure van toeriste aangaande attraksies en aktiwiteite te bepaal deur gelyksoortige groeperings te kombineer. 4. Toeriste in trosgroepe met gelyksoortige voorkeure te verdeel. 5. Die sosio-ekonomiese, demografiese en reiseienskappe van verskillende toeristetrosgroepe te vergelyk. 6. Riglyne vir ondernemers/boere/grondeienaars te formuleer vir watter toeristeprodukte hul behoort te verskaf of ontwikkel en aan wie en hoe hul dit behoort te bemark. Hierdie studie het die verspreiding van vraelyste aan potensiële en praktiserende agritoeriste in winkelsentrums en plase, betrokke by agritoerisme, behels. Die vraelyste het informasie oor potensiële en praktiserende agritoeriste verskaf Een-honderd en agt vraelyste was voltooi. Die respondente het aangedui dat 'berge', 'watervalle', 'riviere', 'grootwild', 'swem', 'pieknieks', 'natuurskoonplesierritte' , 'damme/mere/panne' en 'kleinwild' die gewildste agritoerisme attraksies en aktiwiteite is. Faktoranalise is gebruik om die getal verandelikes te verminder deur soortgelyke verandelikes (attraksies) te kombineer en trosanalise te gebruik om die respondente te segmenteer in vyf trosgroepe toeriste met gelyksoortige voorkeure vir agritoerisme attraksies en aktiwiteite. Kruistabulering, frekwensies en beskrywende statistiek was gebruik om hierdie verskillende trosse te beskryf volgens hul demografiese, sosio-ekonomiese en reiseienskappe. Segmentering van die toerismemark en die saamstel van profiele van die toeriste binne elke sub-mark is voordelig bevind. As die vereistes van die toeriste bekend is, kan die gepaste fasiliteite en aantal fasiliteite ontwikkel word. Om te weet wie die toeriste is en waar om hulle te teiken sal tot beter bemarking, beplanning en promosie van die destinasie lei. Kliëntbevrediging sal toeneem, omdat ondernemers presies weet wie om te bevredig en dit sal herhaalde besoeke tot gevolg hê. Die vyf trosgroepe toeriste was: 'algemene natuurtoeriste'; 'stedelike toeriste'; 'ekstreme buitelug avontuurtoeriste' ; 'visuele of nie-ekstreme buitelug avontuurtoeriste' ; en 'agritoeriste'. Al die toeriste behalwe stedelike toeriste is uitstekende potensiële agritoeriste. Die resultate van hierdie studie is gebruik om riglyne vir ondernemers te kompileer. Hierdie riglyne kan hul help om te besluit wie om te teiken (watter trosse), watter agritoerisme produkte om te ontwikkel (attraksies, aktiwiteite en dienste) en hoe om dit te bemark (wyse van advertensie). Toepaslike akkommodasie en die beskikbaarheid van toerusting en fasiliteite vir aktiwiteite dien ook as attraksies. Hierdie studie demonstreer 'n ekonomiese manier om informasie omtrent toeriste in te win, om bemarking en beplanning te verbeter. Dit illustreer hoe die potensiële en praktiserende agritoeris ook in sub-markte ingedeel kan word. Die agritoerisme mark is 'n heterogenemark en moet dus gesegmenteer word. Enige ontwikkelaar kan die resultate van hierdie marksegmentasie gebruik. Soortgelyke navorsing behoort in die toekoms op 'n groter steekproef gedoen word. Omdat hierdie studie hoofsaaklik in die Wes-Kaap gebaseer was, behoort soortgelyke navorsing in ander bepaalde streke uitgevoer te word. Dit sal insiggewend wees om te sien hoe die groepe agritoeriste volgens geografiese streke varieer.

Thesis (MSc)--Stellenbosch University, 2003. / ENGLISH ABSTRACT: The oceanic and meteorological systems that characterize the southern African coastline are well-documented. In this thesis, these characteristics have been considered in conjunction with the analysis of a unique set of sea surface temperature (SST) data, obtained from measuring sites around the southern African coast, to determine the variability of SSTs in the immediate coastal region of southern Africa, and to demonstrate how this variability impacts on marinerelated economic activities. As part of the analysis process, various statistical techniques have been applied to the data over different time periods to establish the extent of the spatial variability of SSTs along the southern African coastline. From the results it has been possible to identify three distinctly different 'climatological' regions around the southern African coast; viz a cooler west coast region with a low annual and seasonal SST variability and a higher variability from day-ta-day, a warmer east coast region with a higher annual and seasonal SST variability and a lower variability from day-ta-day; and a temperate south coast region with a highly erratic annual, seasonal and day-ta-day SST variability. Furthermore, it has been possible to identify, albeit small, the existence of a high and a low frequency signal of 12-15 days and 40-60 days, respectively, in the three different regions. There is also evidence of the periodic occurrence of anomalously warm and cold SST events in all three regions, and a probability of <1.1% of a day-ta-day SST anomaly of >3°C (+3°C or- 3°C) occurring anywhere along the southern African coastline. The general causes of SST change have been discussed within the context of the heat budget equation. Furthermore, the effects of the variability of SST on the climate and marine life around southern Africa and the resulting impact on the various marine-related economic activities (such as aquaculture, air-sea rescue and power stations) have been identified, and shown to be both positive and negative.Finally, it should be noted, that economic infonnation relating to marine activities is closely guarded due to inter-industry competition. It has therefore been difficult to quantify the exact impact of the effects of SST variability on these activities. / AFRIKAANSE OPSOMMING: Die oseaniese en weerkundige stelsels wat die kuslyn van suidelike Afrika kenmerk is goed gedokumenteer. Die stelselkenmerke is in hierdie verhandeling ondersoek aan die hand van 'n unieke datastel van seeoppervlaktemperature (SST) afkomstig van meetplekke aan die kus van suidelike Afrika, ten einde die veranderlikheid van SST in die onmiddelike kusomgewing van suidelike Afrika vas te stel, asook om te demonstreer hoe hierdie veranderlikheid inwerk op seeverwante ekonomiese aktiwiteite. As deel van die proses van analise is verskeie statistiese metodes gebruik om die data oor verskeie tydperke te ontleed ten einde die omvang van ruimtelike veranderlikheid van SSTs langs die kus van suidelike Afrika te bepaal. Uit die resultate was dit moontlik om drie duidelike onderskeibare 'klimatologiese' streke aan die kus van suidelike Afrika te identifiseer; te wete 'n koeler weskusstreek met 'n lae jaarlikse en seisoenale SST-veranderlikheid en hoër dag-tot-dag veranderlikheid, 'n warmer ooskusstreek met 'n hoër jaarlikse en seisoenale SST-veranderlikheid en laer dag-tot-dag verandelikheid; asook 'n gematigde suidkusstreek met 'n hoogs wisselvallige jaarlikse, seisoenale en dag-totdag SST-veranderlikheid. Dit was verder moontlik om, alhoewel klein, die bestaan van lae en hoë frekwensie seine van 12-15 dae en 40-60 dae onderskeidelik in die drie streke te identifiseer. Daar is ook tekens van die periodieke voorkoms van anomale warm en koue SSTgebeurtenisse in al drie streke en 'n waarskynlikheid van <1.1% van die voorkoms van 'n dagtot- dag SST-anomaliteit van >3°C (+3°C of -3°G) op enige plek langs die suider Afrikaanse kuslyn. Die algemene oorsake van veranderings in SST is bespreek binne die konteks van die formule vir die behoud van hitte-energie. Die invloed van SST-veranderlikheid op die klimaat en die seelewe om suidelike Afrika en die gevolglike effek op mariene-verwante ekonomiese aktiwiteite (soos akwakultuur, lug-see-redding en kragstasies) is ook geïdentifiseer en is aangetoon om beide positief en negatief te wees Ten laaste dien dit gemeld te word dat ekonomiese inligting met betrekking tot mariene aktiwitweite goed bewaar word as gevolg van kompetisie in die bedryf. Dit was derhalwe moeilik om die presiese impak van die gevolge van SST-veranderlikheid op sodanige aktiwiteite te kwantifiseer.

Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2011. / ENGLISH ABSTRACT: Land for agricultural development gets scarcer as more and more agricultural land is being transformed by non-agricultural uses. The increased agricultural land use change in the Western Cape Province results in transformation, fragmentation and loss of productive agricultural land. With the A2 planning area of the Department of Environmental Affairs and Development Planning (DEADP), in the Boland region of the Western Cape, as its study area, this study investigates the role of legislative control measures on changes of land use from agriculture to a different form of development, by analysing the Environmental Impact Assessment (EIA) applications for the change of agricultural land use and agriculture applications for the conversion of undeveloped land for the period 1 January 1998 to 3 July 2006. The study examines the role that the relevant legislation plays in agricultural land use control; considers the nature, extent and reasons for agricultural land use change in the study area (under the Environment Conservation Act (Act 73 of 1989) (ECA)); determines the impacts associated with the transformation of agricultural land use in the study area by assessing transformation of undeveloped land applications (captured under the Conservation of Agricultural Resources Act (Act 43 of 1983) (CARA)); and measures the amount of agricultural land potentially lost to development through EIA change of land use applications (according to the DEADP database) opposed to the amount of agricultural land potentially gained through conversion of undeveloped land (according to the DoA database). Two databases were created, based on variables obtained from EIA change of agricultural land use applications authorised by DEADP [DEADP’s database] and conversion of undeveloped land for agricultural use, authorised by the Department of Agriculture (DoA)[DoA’s database]. The variables used to create DEADP’s database are the applicant, property owner, type of property, development function, year of authorisation, municipality, town, size of property, permanent and temporary jobs created, percentage of property developed, footprint of development, existing land use and unique source. The variables used to create DoA’s database are the year of authorisation, new and existing land use, year of authorisation, municipal area, property owner, percentage of property converted and footprint of development. The variables in the two databases are analysed using cross tabulations, with the variables measured against each other using pivot tables. The final tables are investigated through interpretation of the results and making recommendations for better management and planning in the future, based on relevant literature. The main findings are that DEADP gave authorisation for 416 agricultural land use change developments between 1 January 1998 and 3 July 2006, resulting in 2855 hectares of agricultural land potentially being developed. It was also found that DoA gave approval for 118 undeveloped land conversion applications, converting a total of 2589 hectares for agricultural purposes. The findings also revealed that 1707ha of this undeveloped land were covered with indigenous vegetation, while only 299ha were covered with alien vegetation. The challenge is to use valuable agricultural land optimally and sustainably for agricultural purposes. Non-agricultural developments should be kept within the urban edge and away from valuable agricultural land. If such development must take place on agricultural land, it must be done on the poorest soils and should not jeopardise agricultural activities. Keywords: land use change, undeveloped land, applicant, property owner, type of property, development function, year of authorisation, municipality, town, size of property, permanent jobs, temporary jobs, percentage of property developed, footprint of development, existing land use, new land use and unique source. / AFRIKAANSE OPSOMMING: Grond vir landbou ontwikkeling word al hoe skaarser namate meer en meer landbougrond omskep word vir ander grondgebruike. Die gevolg is dat meer landbougrond in die Wes-Kaap omskep word vir ander ontwikkelingsdoeleindes, wat lei tot transformasie, fragmentering en verlies van produktiewe landbougrond. Met die A2 beplanningsgebied van die Departement van Omgewingsake en Ontwikkelingsbeplanning (DOeOB), wat geleë is in die Boland streek van die Wes-Kaap, as studiegebied, ondersoek hierdie studie die rol van wetgewende beheermatreëls op grondgebruiksverandering vir die periode 1 Januarie 1998 tot 3 Julie 2006, deur Omgewingsimpakbepalings (OIB) aansoeke wat ‘n verandering van landbougrondgebruik insluit, asook landbou aansoeke wat die omskepping van onontwikkelde grond insluit, te ontleed. Die studie ondersoek die rol wat relevante wetgewing in landbougrondgebruikskontrole speel; analiseer die aard, omvang en redes vir landbougrondgebruiksverandering in die studiegebied soos voor aansoek gedoen in terme van die Wet op Omgewingsbewaring (Wet 73 van 1989); die impakte wat geassosieer word met transformasie van landbougrond deur verandering van landbougrondgebruik soos voor aansoek gedoen in terme van die Wet op Bewaring van Landbouhulpbronne (Wet 43 van 1983); en vergelyk die hoeveelheid landbougrond wat potensieel omskep is vir ontwikkeling deur middel van OIB verandering van grondgebruik aansoeke (volgens DOeOB databasis) teenoor die hoeveelheid nuwe landbou grond wat potensieel geskep is deur onontwikkelde grond te omskep vir landbou (volgens DvL databasis). Twee databasisse is geskep, gebaseer op veranderlikes wat verkry is uit OIB-aansoeke wat ‘n verandering van landbougrondgebruik ingesluit het en deur DOeOB goedgekeur is [DOeOB databasis] en aansoeke wat ‘n verandering van onontwikkelde grond vir landboudoeleindes insluit, goedgekeur deur die Departement van Landbou (DvL) [DvL databasis]. Die veranderlikes in die DOeOB databasis te skep sluit die volgende in: aansoeker, eienaar, tipe eiendom, tipe ontwikkeling, jaar van goedkeuring, munisipale area, dorp, groote van eiendom, permanente en tydelike werksgeleenthede geskep, proporsie van grond ontwikkel, voetspoor van ontwikkeling, bestaande grondgebruik, nuwe grondgebruik en unieke bron. Die veranderlikes in die DvL databas is: jaar van goedkeuring, nuwe en bestaande grondgebruik, munisipale area, dorp, grondeienaar, proporsie van grond ontwikkel en voetspoor van ontwikkeling. Die veranderlikes in die twee databasisse is ontleed deur kruistabelle. Die finale tabelle word geanaliseer deur die resultate te interpreteer en voorstelle te maak vir beter bestuur en beplanning in die toekoms, gebaseerd op relevante literatuur. Die hoof resultate van die studie toon dat DOeOB goedkeuring gegee het vir 416 landbougrondgebruiksveranderingontwikkelings tussen 1 Januarie 1998 en 3 Julie 2006, wat moontlik veroorsaak het dat 2855 hektaar landbougrond ontwikkel is. Die resultate dui ook dat DvL goedkeuring uitgereik het vir 118 ontwikkeling van onontwikkelde grond aansoeke, wat ’n totaal van 2589 hektaar grond potensieel omskep het vir landbou doeleindes. Die bevindinge bevestig ook dat 1707 hektaar van die onontwikkelde grond bedek was met inheemse plantegroei, terwyl slegs 299 hekaar bedek was met uitheemse plantegroei. Die uitdaging vir die toekoms is om vrugbare landbougrond optimaal en volhoubaar te gebruik vir landbou. Nie-landbou ontwikkelings moet binne die stedelike grens geskied, weg van vrugbare landbougrond. Indien ontwikkeling op landbougrond plaasvind, moet dit op lae-potensiaal landbou grond geskied en geensins landbou aktiwiteite benadeel nie. Kernwoorde: grondgebruiksverandering, onontwikkelde grond, aansoeker, eiendoms eienaar, tipe eiendom, tipe ontwikkeling, jaar van goedkeuring, munisipale area, dorp, groote van eiendom, permanente werksgeleenthede, tydeike werksgeleenthede geskep, persentasie van grond ontwikkel, voetspoor van ontwikkeling, bestaande grondgebruik, nuwe grond gebruik en unieke bron.