Dissertations / Theses on the topic 'Drought relief – South Africa'
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Singh, Kamal. "Drought, relief and rural communities : special report no. 9." Association for Rural Advancement (AFRA), 1993. http://hdl.handle.net/10962/68651.
Full textDube, Carolina. "The impact of Zimbabwe's drought policy on Sontala rural community in Matabeleland South Province /." Link to the online version, 2008. http://hdl.handle.net/10019/1768.
Full textStols, J. A. (Jeanne Anine). "Review of small business tax relief measures in South Africa." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/41575.
Full textDissertation (MCom)--University of Pretoria, 2013.
lmchunu2014
Taxation
unrestricted
Masilela, David Davi. "Discharge as a component of debt relief in South Africa." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/43172.
Full textPhiri, Darius. "Biomass modelling of selected drought tolerant Eucalypt species in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85739.
Full textENGLISH ABSTRACT: The study aims at developing models for predicting aboveground biomass for selected drought tolerant Eucalyptus (E) species (E. cladocalyx, E. gomphocephala and E. grandis x camaldulensis) from the dry west coast. Biomass models were fit for each of the species and a cross-species model was parameterised based on pooled data for all the three species. Data was based on destructive sampling of 28 eucalypt trees which were 20 years of age and additional five five-year old E. gomphocephala trees. Preliminary measurements on diameter at breast height (dbh), height (h) and crown height were recorded in the field. The sampled trees were then felled and samples of discs, branches and foliage were collected. Density of the wood discs and the bark was determined by a water displacement method and computer tomography scanning (CT-scanner). Stem biomass was reconstructed using Smalian’s formula for volume determination and the calculated densities. Upscaling of the crown was carried out by regression equations formulated by employing the sampled branches. Further assessment was carried out on a sub-sample by subjecting the samples to different drying temperatures in a series between 60 and 105ºC. Linear models were parameterised by a simultaneous regression approach based on Seemingly Unrelated Regression (SUR) using the “Systemfit” R statistical package. The predictor variables employed in the study were dbh, d2h and h in which the coefficient of determination (R2), Mean Standard Error (MSE) and Root Mean Standard Error (RMSE) were used to determine the goodness of fit for the models. Akaike Information Criteria (AIC) was also used in the selection of the best fitting model. A system of equations consisting of five models was formulated for each Eucalyptus species. The biomass prediction models had degrees of determination (R2) ranging from 0.65 to 0.98 in which dbh and d2h were the main predictor variable while h improved the model fit. The total biomass models were the best fitting models in most cases while foliage biomass had the least good fit when compared to other models. When the samples were subjected to different drying temperatures, stem wood had the largest percentage change of 6% when drying from 60ºC to 105ºC while foliage had the lowest percentage change of less than 2%.
AFRIKAANSE OPSOMMING: Die doel met hierdie studie is om modelle vir die voorspelling van die bogrondse biomassa van drie droogte-bestande Eucalyptus (E) spesies (E. cladocalyx, E. gomphocephala en E. grandis x camaldulensis), gekweek op die droë kusvlakte in Wes-Kaapland, te ontwikkel. Biomassa modelle vir elk van die spesies is gepas en ’n model gegrond op die gekombineerde data van al drie die spesies, is geparameteriseer. Verder is die biomassa variasie onder verskeie droogingstemperature vasgestel. Die data versameling is uitgevoer gegrond op die destruktiewe mostering van 28 Eucalyptus bome wat 20 jaar oud was en ’n bykomende vyf vyfjarige E. gomphocephala bome. Die aanvanklike mates, naamlik deursnee op borshoogte (dbh), boomhoogte (h) en kroonhoogte is in die veld opgemeet. Die gemonsterde bome is afgesaag en monsters van stamhout skywe, takke en die bas is versamel. Die digtheid van die skywe en die bas is deur die waterverplasing metode, en Rekenaar Tomografie skandering (“CT-scanning”) vasgestel. Stam biomassa is rekonstrukteer deur gebruik te maak van Smalian se formule vir die vasstelling van volume en berekende digtheid. Die opskaal van die kroon biomassa is gedoen met behulp van regressie vergelykings van gekose takmonsters. Submonsters is onderwerp aan ’n reeks van verskillende drogingstemperature tussen 60 en 105ºC. Lineêre modelle is deur ’n gelyktydige regressie benadering gegrond op die Seemingly Unrelated Regression (SUR) wat ’n“Systemfit” R statistiese pakket gebruik, parameteriseer. Die voorspeller veranderlikes wat in hierdie studie gebruik is, is dbh, d2h en h waarin die koëffisient van bepaling (R2), gemiddelde standaardfout (MSE) en vierkantswortel van die gemiddelde standaardfout (RMSE) gebruik is om vas te stel hoe goed die model pas. Akaike Inligting Kriteria is gebruik vir die seleksie van die gepaste model. ’n Reeks vergelykings wat bestaan uit vyf modelle is vir elke Eucalyptus spesie geformuleer. Die biomassa voorspelling model het waardes vir die koëffisiente van bepaling (R2) opgelewer wat strek van 0.65 to 0.98% en waarin dbh en d2h die hoof voorspelling veranderlikes is, terwyl h die pas van die model verbeter. Die totale biomassa model het in die meeste gevalle die beste gepas en die blaarbiomassa die swakste as dit met die ander modelle vergelyk word. Tydens droging vind die grootste persentasie verandering van 6% by stamhout plaas tussen temperature van 60ºC tot 105ºC, en die kleinste persentasie verandering van minder as 2% by blare.
Nondoda, Sibulele Phefumlela. "Macrophyte distribution and responses to drought in the St Lucia Estuary." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012330.
Full textJooste, Guillaume Hendrik Christiaan. "Periodic drought effects on afrotemperate forests in the Southern Cape of South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96834.
Full textENGLISH ABSTRACT: Understanding the effects of climate change is one of the cardinal issues within the natural resource management circles. Increased droughts are part of these changes. Afrotemperate forests, as well as their drier Afromontane counterparts suffer from periodic and seasonal droughts respectively. To better understand the effect of droughts on these forests, three key species namely Olea capensis (Iron wood), Podocarpus latifolius (Common Yellow wood) and Pterocelastrus tricuspidatus (Candle wood), were analysed using dendroecologic techniques. Two sites in the Southern Cape were selected according to a West-to-East moisture gradient, with the drier site being close to George and the medium moist site at the Diepwalle estate in the vicinity of Knysna. Growth ring measurements from each of the species were used to calculate basal area and basal area increment during the lifetime of the trees. Drought years for the sites were then selected based on the Standardised Precipitation and Evapotranspiration Index (SPEI), also indicated by the growth during the drought periods. Differences in growth patterns for all three species were observed. An event analysis was then used to quantify the difference in the resistance (Rt), recovery (Rc), resilience (Rs) and relative resilience (RRs). With values standardised around one (Rt, Rc and Rs) and zero (RRs), it was seen that the Candle wood had the highest (~0.92) resistance and the Yellow wood had the highest (~1.3) recovery after the drought. Iron wood stood apart from the other two species in the sense that it only reacted negatively towards the drought one year after the event in most cases. It was concluded that each of the species were significantly different in their reactions towards drought. This specific difference in drought reaction can give way to the possibility that the species together adapted to relieve the stress of a short drought by splitting the available resources over a longer period.
AFRIKAANSE OPSOMMING: Dit is van uiterse belang vir bestuur doeleindes om die veranderende klimaat oor die wêreld te verstaan, insluitend die droogtes wat daarmee gepaard gaan. Die Afrotemperate woud-tipe, asook sy droeër teenstaander, die Afromontane, lei gereeld aan sporadiese en seisonale droogtes. Om hierdie woud-tipe se reaksie tot droogtes beter te verstaan, was drie boom spesies naamlik Ysterhout (Olea capensis), Kershout (Pterocelastrus tricuspidatus) en gewone Geelhout (Podocarpus latifolius), gekies vir die gebruik in ‘n dendro-ekologiese studie. Twee areas was gekies van ‘n wes-tot-oos droogte gradient, met die droeër blok in die George omgewing en die meer vogtige een naby aan Knysna. Die jaarring metings van elke boom was gebruik om beide die basale oppervlakte en die basale oppervlak groei per jaar aan te teken. ‘n Gestandardiseerde reenval en evapotranspirasie indeks (SPEI) was gebruik om vas te stel jare waarin matige tot sterk droogtes gebeur het. Hierdie gekose jare het aanduiding gegee dat daar wel ‘n verskil waargeneem was in die groei patrone van elke spesie gedurende die droogtes. ‘n Gebeurtenis analise is gebruik om ‘n kwantitatiewe verskil te kon sien in die weerstand (Rt), herstel (Rc), weerstandbiedendheid (Rs) en relatiewe weerstandbiedendheid (RRs). Die was waargeneem dat Kerhout die hoogste weerstand (0.92) toon, terwyl die Geelhout ‘n hoër herstel waarde (1.3) gehad het. Ysterhout het apart van die ander twee spesies gestaan in dìe dat dit eers een jaar na die droogte ‘n reaksie getoon het teenoor die droogte. Dit was dus gevind dat daar spesifieke verskil is tussen al drie van die spesies teen opsigte van stres reaksies was. Hierdie verskil kan dan wel ook moontlik aandui dat hierdie spesies en woud-tipe op so ‘n anier aangepas is dat dit die stress gedurende ‘n kort droogte versprei oor ‘n langer tydperk.
Araujo, Julio. "Impact of drought on grape yields in the Western Cape, South Africa." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/9106.
Full textDroughts remain a threat to grape yields in South Africa. Previous studies on the impact of climate variability on grape yield in South Africa have focussed on either the rainfall or the impact of temperature on the grape yields; meanwhile, the grape yields may be more influenced by impacts of drought (which is function of water balance) than that of rainfall or temperature. This study investigates the impact of drought on grape yields in the Western Cape. A drought index that is based on water balance (called, Standardized Precipitation Evapotranspiration Index; hereafter SPEI) was used to analyse drought events at both farm and district scale (Robertson, Olifants River and Stellenbosch districts). Correlation analysis was used to identify the association between drought and grape yield. In addition, the performance of a grape yield model (Agricultural Production Systems sIMulator, APSIM) in simulating the grape yield at farm scale and investigating the sensitivity of yields to drought, with and without irrigation was evaluated.
Granlund, Stefan. "The Right to Social Security : South Africa in Between Rights and Relief." Thesis, Uppsala universitet, Teologiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-254630.
Full textDube, Carolina. "The impact of Zimbabwe’s drought policy on Sontala rural community in Matabeleland South province." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2138.
Full textThe climate of southern Africa varies greatly spatially and temporally. Tyson‟s (1987) examination of long-term rainfall records has shown an 18-year cyclical pattern of wet spells alternating with dry spells. Recurrent droughts are thus a feature of southern Africa‟s climate. Although climate change resulting from global warming could intensify future droughts, current predictions of regional climate change are unreliable. This study evaluates the nature, adequacy and effectiveness of Zimbabwe‟s drought policy in reducing the vulnerability of rural communities to the impact of drought. The objectives of the study are to explore the different meanings of the concept of drought; to explain the relevant concepts and frameworks of the hazard assessment and management discipline; to describe the current status of disaster management in general and drought in particular; to identify the mechanisms used by small-scale farmers in Sontala ward for coping with drought; and to evaluate the adequacy and effectiveness of Zimbabwe‟s drought policy in reducing the vulnerability of rural communities to drought impacts. A qualitative approach was used which involved analysis of government documents and academic literature. Semi-structured interviews were conducted with government officials at provincial level and small-scale farmers at ward level in Matabeleland South province. The data collection exercise was, however, constrained by the current political instability in the country. The study established that the Civil Protection Act No 10:06 of 1989, complemented by relevant sections of other laws, provides a legal framework for disaster management. The Ministry of Local Government, Public Works and Urban Development has a coordinating role. Coordinating committees at national, provincial and district level formulate disasterresponse plans to be activated when a disaster occurs. The Civil Protection System uses existing government, private and non-governmental organizations whose regular activities contain elements of disaster risk prevention and community development. The enactment of the Emergency Preparedness and Disaster Management Act will remove some of the shortcomings of the Civil Protection System.
Samuels, Mogamat Igshaan. "Patterns of resource use by livestock during and after drought in a communal rangeland in Namaqualand." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7198_1209039727.
Full textPastoralists in Africa have developed complex mechanisms by which they can alleviate the threat of drought. They practice mobility as one of the strategies to avoid the worst effects of natural stress and disperse grazing pressure. In the past in South Africa, the indigenous Nama people occupied large areas of land and moved around extensively to exploit seasonal differences in the availability of forage and water. With the settlement of the Europeans in the Cape the indigenous people lost most of their land to the colonists. The Nama people were, therefore, restricted to smaller rangelands and their patterns of rangeland use had to adapt to the spatial constraints. Descendants now herd livestock from semi-permanent stockposts that are scattered throughout the commons. Herders use a range of practices to manage their livestock. The aims of this study was to assess the agro-ecological knowledge of livestock keepers
assess the condition of the rangeland during drought
determine the herding strategies of herders during drought.
Edossa, D. C., Y. E. Woyessa, and W. A. Welderufael. "Comparison between two meteorological drought indices in the central region of South Africa." Interim : Interdisciplinary Journal, Vol 13, Issue 3: Central University of Technology Free State Bloemfontein, 2013. http://hdl.handle.net/11462/309.
Full textThe objective of this study was to characterize meteorological droughts in the Central Region of South Africa, Modder River Basin, C52A quaternary catchment using two popular drought indices: Standardized Precipitation Index (SPI) and Standardized Precipitation-Evapotranspiration Index (SPEI) and to compare the two indices. Drought events were characterized based on their frequency, duration, magnitude and intensity. The indices were computed for the time-scales that are important for planning and management of water resources, i.e. 3-, 6- and 12-month time-scales. The basic meteorological input data used in the computation of these indices were 57 years (1950-2007) of monthly precipitation and monthly temperature data which were recorded at The Cliff weather station in the quaternary catchment. It was found that both SPI and SPEI responded to drought events in similar fashion in all time-scales. During the analysis period, a total of 37, 26 and 17 drought events were identified in the area based on 3-, 6-, and 12-month times-scales, respectively. Considering event magnitude as severity parameter, results from both indices identified the periods 1984-1985, 1992-1993 and 2003-2005 as the severest drought periods in the area. However, when the effects of both drought duration and magnitude are considered (drought intensity), the most severest drought events were identified during the years 1982/83, 1966 and 1973 based on 3-, 6- and 12-month timescales, respectively. It was concluded that although the SPEI generally exhibits veracity over SPI by including, apart from precipitation, additional meteorological parameter, mean temperature, SPI should be adopted as an appropriate drought monitoring tool in an area, like Africa, where meteorological data are scarce.
Makhalane, Vuyisile. "The assessment of factors contributing to the sustainability of poverty relief projects in the Eastern Cape." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/1005.
Full textHall, Andrew. "The Influence of Anthropogenic Climate Change on the 2015-2017 Hydrological Drought in the South-Western Cape, South Africa." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/33674.
Full textMonyela, Bellinda Mashoene. "A two-year long drought in summer 2014/2015 and 2015/2016 over South Africa." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27111.
Full textFischer, Phillip Murray. "δ13C as indicator of soil water availability and drought stress in Pinus radiata stands in South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6588.
Full textENGLISH ABSTRACT: This study investigated the use of carbon isotopes as a potential measure for water availability and drought stress in Pinus radiata in the Western and Southern Cape, South Africa. An understanding of water availability and its variation in space is fundamental to the implementation of increasingly site-specific management regimes that have the potential to greatly improve productivity across sites in the region. Fifteen plantation compartments situated on water shedding sites were identified where good weather data existed and a water balance model could be run. In addition, late wood samples were analysed from four co-dominant trees in the same stand to determine the δ13C values of five tree rings, each representing a specific growth year before first thinning. Detailed water balances were constructed for each trial site and drought stress indicators (a) relative canopy conductance (after Granier et al., 2000) and (b) the ratio of actual to potential evapotranspiration (supply / demand ratio), were related to δ13C values in latewood. Maximum available soil water ranged from 52 to 313 mm across trial sites. The water balance model used adequately described soil water availability throughout each growing season and indicated that stand stress due to the lack of available soil water mainly occurred during the summer months of the study period (November to April). The supply / demand ratio for this period as well as the relative canopy conductance proved to be good measures of drought stress. The six-month supply demand ratio (calculated for the period November to April) ranged from 0.04 to nearly 1 (winter rainfall zone) and 0.35 to 1 (all-year rainfall zone) and were strongly related to δ13C values (p < 0.001; r2 = 0.7822). It appears that using δ13C values, it may be possible to classify sites into three water availability classes. This classification may assist in the implementation of intensive silvicultural operations on an increasingly site-specific basis. Where sites are enriched with water from lateral flow or upslope positions, δ13C may be the only reliable technique to quantify soil water availability.
AFRIKAANSE OPSOMMING: Hierdie studie ondersoek die gebruik van koolstof isotope as 'n moontlike maatstaf vir die beskikbaarheid van water en droogtestremming in Pinus radiata in die Wes-en Suid-Kaap, Suid-Afrika. 'n Begrip van die beskikbaarheid van water en die ruimtelike variasie daarvan is fundamenteel vir die implementering van groeiplek-spesifieke bestuur sisteem wat die potensiaal het om baie verbeterde produktiwiteit oor persele in die streek teweeg te bring. Vyftien plantasievakke, geleë op waterskeidingsterreine is geïdentifiseer waar goeie weer data bestaan en 'n water balans model uitgevoer kon word. Daarmee saam is laathout monsters vanuit vier ko-dominante bome in dieselfde kompartement geanaliseer en die δ13C waardes van laathout in vyf jaarringe bepaal wat elk 'n spesifieke jaar van groei voor die eerste dunning verteenwoordig. Gedetailleerde water balanse is vir elke proef perseel bereken en aanwysers van droogtestremming, nl.: (a) relatiewe kroon geleiding (na Granier et al., 2000) en (b) die verhouding van die werklike teenoor potensiële evapotranspirasie (vraag / aanbod verhouding) is gekorreleer met 13C waardes in laat hout. Die maksimum hoeveelheid water beskikbaar op die verskeie proefpersele wissel van 52 tot 313 mm. Die water balans model wat gebruik is beskryf die beskikbare grondwater met genoegsame akkuraatheid. vir die hele groeiseisoen. Die model dui ook aan dat die kompartemente droogtestremming as gevolg van die gebrek aan beskikbare grond water ervaar gedurende die somer maande van die studie tydperk (November tot April). Die vraag / aanbod verhouding vir hierdie tydperk, asook die relatiewe kroon geleiding is geskik om as maatstawwe van droogtestremming gebruik te word. Die vraag / aanbod verhouding (bereken vir die tydperk November tot April) het gewissel van 0,04 tot byna 1 (Winter reënval gebied) en 0,35 tot 1 (die heel jaar reënval sone) en is sterk verwant aan 13C waardes (p <0,001; r2 = 0,7822). Dit blyk dat met die gebruik van δ13C waardes, dit moontlik kan wees om kompartemente te klassifiseer in drie klasse van water beskikbaarheid. Hierdie klassifikasie kan help met die implementering van intensiewe boskultuur bedrywighede op 'n meer vak-spesifieke basis. Waar vakkeverryk is met water vanuit laterale vloei of hoër liggende posisies, mag δ13C dalk die enigste betroubare tegniek wees om die beskikbaarheid van water te kwantifiseer.
Ndlala, Noluthando. "Remote sensing drought impacts on wetland vegetation productivity at the Soetendalsvlei in the Heuningnes Catchment, South Africa." University of Western Cape, 2021. http://hdl.handle.net/11394/8329.
Full textThis work aimed at assessing the response of wetland vegetation productivity to the 2014-2017 climate-induced drought at the Soetendalsvlei wetland system in the Western Cape province of South Africa. To achieve this objective, firstly a literature review on the progress of remotely sensed data applications in assessing and monitoring wetland vegetation productivity was conducted. The review elaborates on the role of remote sensing in monitoring and assessing wetland vegetation productivity, with a detailed discussion of the climate change and variability impacts on wetland vegetation productivity. Accurate assessment results are produced when suitable processing techniques are selected as well as appropriate spatial and spectral resolution for extracting spectral information of wetland vegetation productivity. Secondly, wetland vegetation changes and productivity status was assessed using multi-temporal resolution Landsat series imagery and Normalized Difference Vegetation Index (NDVI) during the wet and dry seasons for the period between 2014 and 2018.
Lebese, Ally Hanyani. "Assessing Rural domestic water demand and use for local groundwater governance during drought, Halambani area, South Africa." University of the Western Cape, 2017. http://hdl.handle.net/11394/5927.
Full textGroundwater demand (abstraction) and use during drought continues to be a vital aspect in rural areas. However, the lack of systematic data to assess the availability, demand and use of such resource in addition to lack of having appropriate implementation plan for governing such resources at local scale especially in unmetered areas remain a problem. The argument in this study was that designing appropriate implementation plan that considers local context, informs the basis for implementing local groundwater good governance practice that would sustain utilisation and management of groundwater resources. The Ha-Lambani Village in Limpopo Province of South Africa was used as case study. The aim of this study was to assess rural domestic water demand and use that would inform a basis for designing an appropriate implementation plan for local groundwater good governance as an intervention during drought in rural unmetered areas. To achieve such an aim, i), physiographic factors that influence groundwater availability were explained to establish availability of groundwater; ii), rural domestic water demand and use were assessed to showcase the procedure of generating quantitative data on groundwater abstraction and consumption; iii), factors that determine rural domestic water demand and use were established; iv), appropriate implementation plan for local groundwater governance was designed with evaluation indicators built in. The capability, resilience and sustainable livelihoods approaches were applied as theoretical and conceptual frameworks for the study which informed better understanding of coping strategies during drought.
2019-04-30
Gudlhuza, Shalati Rebecca. "The effects of drought on small scale farmers in Ba-Phalaborwa Municipality, Limpopo Province." Thesis, University of Limpopo, 2017. http://hdl.handle.net/10386/2584.
Full textThis article investigates the effects of drought on small scale beef cattle farmers of Ba- Phalaborwa Municipality in Limpopo Province. Drought and its financial implications have caused critical problems to small scale farmers especially beef cattle farmers in the municipality. Most rural households depend on agriculture as their source of food and income. Agriculture thus plays a prominent role in the stability of rural communities. Drought is a factor that affects farmers not only during the drought season, but also the following season as the previous year’s reduced profits influence the next seasons spending. The changes in price of input commodities the season after drought also affect farmer’s decisions. The main objective of the study was to investigate the effects of drought on small scale beef cattle farmers in Ba-Phalaborwa municipality in Limpopo province. 25 Small scale livestock farmers from Lulekani A and B village in Ba-Phalaborwa municipality were randomly selected to participate in the study. The quantitative study applied a survey design and primary data were collected using open and close ended questionnaires. The findings of the study revealed that drought is a major concern for livestock farmers and the agricultural sector at large, resulting in high loss of livestock due to mortality and enforced sales. Furthermore, due to the devastating effects of drought farmers responses were characterized by the increased reliance on the Department of agriculture and rural development in the form of drought relief. It is therefore recommended that the country needs to prepare for this natural phenomenon and the key to drought preparedness and readiness is about knowing the what, how and when of the drought. To achieve this goal the scientific expertise to monitor and predict, the capability of the observation networks, information systems for drought early warning have to be improved. Furthermore, the provision of financial assistance to address long-term developmental needs (such as investment in water infrastructure and water-harvesting techniques) of the farming community, thereby improving their resilience, may prove more beneficial in the long run than short-term drought relief assistance in the form of fodder supply. Key words: Ba-Phalaborwa, drought, small scale livestock farmers,
Swartz, Andrew Mervyn. "An evaluation of the school feeding programme as a service delivery mechanism to improve academic performance of needy learners in Bonteheuwel." Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/1662.
Full textThe study centres on the school feeding programme in the Bonteheuwel area, which is a predominantly Coloured residential area in close proximity to Cape Town International Airport. The school feeding programme is a national initiative that is driven by the Western Cape Education Department on a provincial level. The research investigated whether the school feeding scheme is being implemented effectively and efficiently. This implies that it was necessary to determine: The current status of school feeding in Bonteheuwel; Whether it adequately meets the needs of needy learners; and If the current scheme is found to be inadequate, what can be done to improve the situation? As the study uses both descriptive and empirical approaches, a questionnaire was constructed to obtain views of selected members of Bonteheuwel’s community. Responses to the questions/statements in the questionnaire were analysed by a Cape Peninsula University of Technology registered statistician and the statistical analysis provided positive answers to the above determinations, which revealed that the school feeding programme was not effective and that more should be done to improve its delivery. The final chapter proposes a number of recommendations to improve implementation of the school feeding programmme.
Van, der Merwe Anika. "A comparative study of tax relief measures for small and medium enterprises in South Africa and New Zealand." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/31069.
Full text- small businesses, which have not elected the turnover tax system, should be allowed to account for VAT on the payment basis and
- the R1,5 million threshold for Category F vendors should be increased to allow small businesses to only file VAT returns every four months as opposed to every two months.
AFRIKAANS : Die Suid-Afrikaanse regering erken die belangrike rol wat klein ondermings in die stimulering van die ekonomie, skepping van werksgeleenthede, verligting van armoede en verbetering van lewenstandaarde van alle Suid-Afrikaners speel. Daarom het die Suid-Afrikaanse Inkomste Diens (SAID) en die Nasional Tesourie ’n aantal maatreëls, wat belastingverligting aan klein ondernemings verleen, geïmplementeer. Die eerste van hierdie maatreëls is deur die vorige Minister van Finansies, Trevor Manual, in sy 2000-begrotingsrede bekend gemaak en was gemik op klein sake-ondernemings. In hierdie studie word die belastingverligtingsmaatreëls vir klein ondernemings in Suid-Afrika geëvalueer gevolg deur die evaluering van die belastingverligtingsmaatreëls vir klein ondernemings in Nieu-Seeland. Daarna word die belastingverligtingsmaatreëls vergelyk en gronding ontleed om te bepaal of die belastingverligtingsmaatreëls in Suid-Afrika ooreenstem met die belastingverligtingsmaatreëls wat in Nieu-Seeland beskikbaar is. Deur ontleding van die vergelykende studie van die belastingverligtingsmaatreëls wat in Suid Afrika geld en die belastingverligtingsmaatreëls in Nieu-Seeland is gevind dat die Suid-Afrikaanse regering ver gevorder het om klein ondernemings in Suid-Afrika te ondersteun. Verder is daar gevind dat die belastingverligtingsmaatreëls in Suid-Afrika op gelyke voet staan met en in die meeste gevalle beter is as die belastingverligtingsmaatreëls wat vir klein ondernemings in Nieu-Seeland geld. Die volgende aanbevelings, wat gegrond is op die belastingverligtingsmaatreëls wat in Nieu-Seeland geld, word gemaak:
- dat klein ondernemings wat nie vir omsetbelasting geregistreer is nie, vir BTW mag verantwoord volgens die betalingsbasis;
- dat die R1,5 miljoen-drempel vir kategorie F-ondernemers verhoog moet word. Hierdeur sal meer klein ondernemings kwalifiseer om BTW-opgawes slegs elke vier maande in plaas van elke twee maande in te dien.
Dissertation (MCom)--University of Pretoria, 2010.
Taxation
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Aucamp, Janetta. "A comparative study of tax relief measures for small medium and micro enterprises in South Africa and Australia." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/26691.
Full textDissertation (MCom)--University of Pretoria, 2010.
Taxation
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Pereira, Ricardo Jorge Ribeiro. "Asymmetry and agency : the United States President's emergency plan for aids relief in Botswana, Ethiopia and South Africa." Doctoral thesis, FEUC, 2012. http://hdl.handle.net/10316/20793.
Full textIn the last thirty years, the discipline of International Relations has witnessed a shift of analytical scope from the conventional world of states towards populationand social forces-related concerns. According to major scholarship, this occurs as a result of interrelated processes of economic globalisation, United States hegemony and emergence of the human security paradigm among Western policy circles. However, this assumption has entailed problems to the research of human agency in the actual practice of international affairs, since Western hegemony is arguably entrenched in the international system to the point of “hijacking” sovereign states, as suggested by Oliver Richmond, particularly in the developing world. Focusing its analysis on states, this dissertation sets out to argue that, rather than essentialised in the hegemonic structure, postcolonial states, notably in Africa, hold agency. When interacting with the leading international powers, and even if highly constrained by external policies and actions, they act with autonomy by identifying their own policy problems, defining strategies and seeking political goals. States’ agency is influenced by three independent variables: the broader realm of foreign policy relations maintained with international actors (public and private), namely leading states; the encompassing arena of domestic policies of the state at stake; and the actual practices of the state, particularly with its local constituents. The employed theoretical framework builds on Kenneth Waltz’s concepts of state as unit with agency in an international system that, nevertheless, is asymmetric. Moreover, the state is taken as a social relation, as suggested by Justin Rosenberg, in which internal and external spheres of state action are interconnected historically and sociologically.The case study consists of the process of implementation of the United States President’s Emergency Plan for AIDS Relief (PEPFAR) in Botswana, Ethiopia and South Africa. Since 2003, PEPFAR has been a major tool of United States foreign policy, especially in Eastern and Southern Africa, serving security, economic and humanitarian purposes. It is a very large public-private partnership that includes United States government agencies and United States-based nongovernmental organisations, governmental and nongovernmental entities from the countries under intervention, as well as international multilateral organisations. Through PEPFAR, the United States of America exerts significant power, at various levels (individual, community and national), in the countries that accept it, despite principles of ‘shared responsibility’ and country ownership. More broadly, PEPFAR displays the problems that arguably feature global health governance, namely as far as utter asymmetric relations between donor and recipient states are concerned, in which the latter are rendered the role of facilitator or ‘rogue’ with regard to the former’s policies. Accordingly, the three states have acted as facilitators, with the exception of South Africa under President Thabo Mbeki. This dissertation’s argument is illustrated by the analysis of agency held by the three states in light of PEPFAR’s implementation and overall relations with the United States of America. The Botswana state behaves towards the survival of the national population, since close to one quarter of the adult population lives with HIV/AIDS in a context of shrinking developmental prospects. In the case of Ethiopia, self-help is also the main concern, yet centralised in the current political regime, in which human development, including improvement of health care, is considered fundamental in that effort. Finally, in the case of South Africa, the transmission of values domestically and internationally on the dignity of Africans has driven the way in which the governments have addressed the HIV/AIDS issue
Pyle, Desmond Mark. "Severe convective storm risk in the Eastern Cape Province of South Africa." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1005529.
Full textYoumans, Hernandez Pamela M. "The doctrine of odious debt : a solution for post apartheid South Africa." Honors in the Major Thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/347.
Full textBachelors
Health and Public Affairs
Legal Studies
Van, der Watt Susanna Maria Elizabeth. ""It is drought, locusts, depression ... and the Lord knows what else" : a socio-environmental history of white agriculture in the Union of South Africa, with reference to the Orange Free State c. 1920-1950." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2404.
Full textAlthough the environment is of obvious and primary importance in agriculture, the historical relationship between agriculture and the environment has not been widely researched. A socio-environmental paradigm provides a useful, inter-disciplinary framework for writing history. It takes into account the fact that ‘natural disasters’ are not merely happening to farmers, governments and communities, subsequently disturbing economic growth-patterns and reverberating amongst policy-makers and politicians. The relationship is much more reciprocal. The environment is not perceived as a player that sometimes disrupts the historical narrative, forcing the plot in a certain direction before returning to the wings. It is rather percieved as an agent within agricultural history. The social-cultural as well as material relationships between people (in this case white farmers), state and the environment are explored as an ecosystem. The thesis focuses on a time period after the First World War to just after the Second World War (c.1920 – c.1950). It asks questions: whom and what has informed the ideas of the state with regards to agriculture and to what extent did it filtered through to the farming communities themselves? The motives behind these approaches are explored. The thesis will also look at how officials translated the policies, legislation and education into what was perceived as functional for the farmers and effective for the environment, tracing how it changed over time. The shifting perception of the farmers about the environment and themselves, and the role of the state played in ‘management’ of the environment are analysed, using press correspondence, marketing campaigns and popular texts. Two themes that garnered much debate in the agricultural sector at the state, farmer and environment interface, include the ‘disasters’ of soil erosion and locust plagues. On the level of ‘scientific agriculture,’ the shift from Europe as a point of reference to the United States is discussed. This is done against the backdrop of South Africa’s semi-arid landscape and how farmers came to grips with this ostensibly hostile environment in an era where mechanisation and urbanisation are thought to have radically altered the conceptualisation of the natural environment.
Smit, Barend Johannes. "The impact of anti-avoidance tax legislation on mergers in the mining industry in South Africa." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/26427.
Full textDissertation (MCom)--University of Pretoria, 2012.
Taxation
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Hajdu, Flora. "Local Worlds : Rural Livelihood Strategies in Eastern Cape, South Africa." Doctoral thesis, Linköping : Department of Water and Environmental Studies, Linköping University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7235.
Full textStewart, Jackie. "Space and survival : the aftermath of a fire disaster in a Cape Town informal settlement." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/906.
Full textFrole, Kristen Marie. "Drought responses of C3 and C4 (NADP-ME) Panicoid grasses." Thesis, Rhodes University, 2008. http://eprints.ru.ac.za/1716/.
Full textDe, Kock Carinus. "Farming in the Langkloof : coping with and adapting to environmental shock and social stress." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97054.
Full textENGLISH ABSTRACT: During the period 2006-2012, the Langkloof area, situated in the Eden District Municipality, suffered severely from environmental shocks and social stress including drought, flooding, hail, wildfire, heatwaves and reduced labour demand. These events negatively impacted many farmers and their livelihoods. In response to these external shocks and stressors, large-, medium- and small-scale farmers adopted numerous coping and adaptive strategies. This study performed a comprehensive livelihoods analysis of large-, medium- and small-scale farmers in the Langkloof area, using the widely recognized sustainable livelihoods framework developed by the United Kingdom’s Department for International Development, with a particular focus on coping and adaptive strategies against severe environmental shock and social stress. Variables used in the analysis were the vulnerability context in which farmers pursue a livelihood; livelihood assets (social, human, financial, natural and physical); the policies, institutions and processes in the external environment that influence the degree of ownership and access to assets; livelihood strategies pursued; and the various livelihood outcomes ultimately produced. The analysis of coping and adaptive strategies employed by farmers during these periods formed an integral part of this study. Sixteen livelihood asset indicators were identified to determine the total assets (human, social, physical, financial and natural) of the farmers. After scaling the indicators, a Principal Component Analysis (PCA) was used to assign weights to each indicator and to subsequently calculate the total assets of each household. Regarding the coping and adaptive strategies employed by farmers against environmental shock and social stress, the average number of strategies was calculated for each household. Spearman’s rank correlations were calculated for total assets achieved (capacity) and the number of strategies employed against environmental shock and social stress.
AFRIKAANSE OPSOMMING: Die Langkloofgedied, geleë in die Eden Distriksmunisipalitiet, is gedurende die tydperk 2006-2012 geweldig geteister deur omgewings- en sosiale gebeure, wat droogte, vloede, hael, veldbrande, hittegolwe en ʼn gevolglike verlaagde arbeidsaanvraag sluit. Hierdie rampe het verreikende nadelige gevolge op boere se lewensbestaan gehad. Terwyl hulle lewensbestaan tot die uiterste uitgedaag is, is verskeie hanterings- en aanpassingstrategieë teen omgewingskok en sosiale stres geïmplementeer. Met die gebruik van die Verenigde Koninkryk se Departement van Internasionale Ontwikkeling se volhoubare lewensbestaansraamwerk is ʼn gedetailleerde en alomvattende analise van groot, medium- en kleinskaalboere in die Langkloof se lewensbestaan gedoen, met ʼn sterk skem op hul hanterings- en aanpassingstrategieë teen omgewingskok en sosiale stress. Die analise veranderlikes het die kwesbaarsheidskonteks waarin boere hul lewensbestaan aanpak; hul verskeie bates (menslik, sosiaal, finansieel, fisies en natuurlik); die beleide, instansies en prosesse in die eksterne omgewing wat toegang tot en eienaarskap van bates reguleer; hul lewensbestaanstrategieë; en die lewensbestaansuitkomste wat bereik word, behels. Die analise van die boere se hanterings- en aanpassingstrategieë geïmplementeer teen omgewingskok en sosiale stres gedurende hierdie tydperk was ʼn integrale rol van hierdie studie. Sestien aanwysers is geïdentifiseer om die totale lewensbestaansbates (menslik, sosiaal, fisies, finansieel en natuurlik) van die boere te bepaal. Nadat die aanwysers geskaal is, is ‘n Hoofkomponentanalise (PCA) uitgevoer om gewigte aan elke aanwyser toe te ken vir die berekening van totale bates van huishoudings. Die hanterings- en aanpassingstrategieë ingestel deur boere teen omgewingskok en sosiale stres, is die gemiddelde aantal strategieë per huishouding. Spearman se rangorde korrelasies is bereken vir die totale bates (kapasiteit) en die getal strategieë geïmplementeer teen omgewingskok en sosiale stres.
Makonya, Givemore Munashe. "Thermo and drought tolerance markers and regulation of heat stress proteins for chickpea (Cicer arietinum L.; Fabaceae) production in NE South Africa." Doctoral thesis, Faculty of Science, 2020. http://hdl.handle.net/11427/32397.
Full textBurton, Michael St John Whitehead. "Graphicacy and the third dimension: an investigation into the problem of poor performance in relief mapwork in South African secondary schools." Thesis, Rhodes University, 1986. http://hdl.handle.net/10962/d1001424.
Full textStrauss, Carien. "The availability of treaty relief for secondary transfer pricing adjustments taking the form of a deemed distribution of an asset in specie in South Africa." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25465.
Full textJohnson, Shelley. "This little chicken went to Africa : a historical survey into the development of narrative structures within relief printmaking in community centres in South Africa and a formal analysis of the relevance of the medium in contemporary children's picture book illustration." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1725.
Full textWhen dealing with emergent literacy in South Africa, the didactic aspects of picture books are often privileged over their aesthetic quality and the idea of reading for pleasure. The themes of the books are not always locally relevant and for economic reasons, they often fail to reach the communities that need them the most. By looking at the history of relief printing within a community environment, I hope to highlight how communities themselves may be able to develop locally relevant children’s picture books, instituting a ‘grassroots’ approach rather than the paternalistic ‘top down’ approach of the past. I will also be looking at the narrative and stylistic elements of relief printing that are complimentary to the picture book genre and how these can be utilised for a pleasurable rather than didactic approach to the narratives.
Ramaselele, P. N. "Effect of planting dates and cutting stages on the production of five selected winter cereals in Moloto District Gauteng and Nooitgedacht in Mpumulanga Province." Thesis, University of Limpopo, 2014. http://hdl.handle.net/10386/1208.
Full textDue to shortage of adequate pasture in large parts of South Africa, winter survival poses a problem to farmers. A shortage in winter grazing is the major problem on most farms in South Africa. Animals loose weight in winter which leads to low reproduction, production of milk, mutton and meat. The winter feed shortages counteract also the possible good performance of animals during summer. Winter supplementation contributes largely to high input costs in livestock production, which can make this enterprise uneconomically. This study was done at two different localities: Hygrotech’s experimental farm at Dewageningsdrift, Gauteng and Nooitgedacht Agricultural Development center, Mpumalunga. Five winter fodder crop cultivars (Witteberg oats, Overberg oats, LS 35 stooling rye, LS 62 stooling rye and Cloc 1 Triticale) were planted on six planting dates (05 April, 04 May, 06 June, 20 July, 20 August and 26 September). Five cutting treatments were applied on Dewageningsdrift: First cut 8 weeks after planting and after that re-growth every six weeks (Ct 8), First cut 10 weeks after planting and after that re-growth every six weeks (Ct 10), First cut 12 weeks after planting and after that re-growth cut every six weeks (Ct 12), First cut 14 weeks after planting and after that re-growth cut every six weeks (Ct 14), First cut when more than 50% of plants were in the reproduction stage (RS). The same cultivars that were used at Dewageningsdrift were used on Nooitgedacht ADC. Only one planting date was applied here that was 02 February 2007. The cutting treatments differed also from that on Dewageningsdrift. Material was cut for the first time when it reached a grazing stage (± 50-60 cm high) and after that re-growth was measured four weeks. The main conclusions from the study were that, Witteberg oats has retained its nutritional value longer than other cultivars. LS 35 stooling rye was an early or short duration growing cultivar, if planted in February to April it will provide grazing early/Mid-winter. However it can also be planted in July to grow in spring. LS 62 stooling rye is a medium to long duration growing cultivar which optimum production period will be in late winter and spring. Witteberg oats is a medium/late producer and a long duration growing cultivar, thus if planted early (April) it can provide grazing until late winter. Overberg oats is an early/med long duration growing type, if planted in April it will produce mid-winter, planted in May to July it will produce late winter and planted in August it will provide spring grazing. Cloc 1 triticale is a long duration growing type. It will produce late winter when planted in April to July and in spring when planted in August/September.
Mamburu, David Nyadzani. "Evaluation of the Poverty Relief Programme in the Limpopo Province within the context of the Reconstruction and Development Programme a Social Work perspective /." Thesis, Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-01142005-082757.
Full textBegg, Nazreen. "A technical analysis of the difference in treatment of technical fees in relation to the receipt of management fees by a resident of South Africa, sourced from Botswana and Zambia, including the impact of domestic and treaty relief." Master's thesis, Faculty of Commerce, 2019. http://hdl.handle.net/11427/31212.
Full textMobie, Titus Risimati. "The impact of privatization of water system towards the poor a challenge to pastoral care : with special reference to the rural communities of Bushbuckridge /." Thesis, Pretoria : [S.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-11062008-170236/.
Full textMorris, Linzette Deidre. "Virtual reality exposure therapy as treatment for pain catastrophizing in Fibromyalgia patients : proof-of-concept." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79876.
Full textENGLISH ABSTRACT: Research objective To test a novel concept that exposing patients with fibromyalgia syndrome (FMS) to visuals of exercise activities elicits neurophysiological changes in functional brain areas associated with pain catastrophization; thereby providing preliminary support for the further development/testing of a virtual reality exposure therapy (VRET) exercise program aimed at reducing pain catastrophization toward exercise therapy in patients with FMS. Methods The main study of this research consisted of a three-phase exploratory fMRI study. Phase 1 involved the development/validation of the fMRI visual task. Phase 2 involved the exploration of the differences in neural correlates associated with pain catastrophizing between participants with FMS and healthy controls when exposed to various visuals of exercise and passive/relaxing activities. Phase 3 involved the testing of the preliminary efficacy of a novel VRET exercise program on pain catastrophization in participants with FMS. The fMRI task consisted of two stimuli: active (exercise activity visuals)/passive (relaxing activity visuals). Structural images as well as blood-oxygenation-level-dependent (BOLD) contrasts were acquired for the conditions and compared within-subjects/groups and between-groups. The condition of interest was the active>passive condition (where brain activations for the passive condition were subtracted from the active condition). The brain volumes collected during ‗on‘ conditions were compared with the brain volumes collected during ‗off‘ conditions using Students‘ t test. Statistic images were thresholded using clusters determined by Z>2.3 and a (corrected) cluster significance threshold of p=0.05. Results The right (R) middle and inferior frontal gyrus and R posterior cerebellum were significantly activated for the participants with FMS, and not the healthy control group, during the active>passive condition (phase 2). At baseline, during the active>passive condition (phase 3), the intervention/VRET group showed significant activation (p<0.05) in the R insular cortex, R anterior and posterior cerebellum, R parahippocampal gyrus, R middle frontal gyrus, R corpus callosum, R thalamus, R supramarginal gyrus and R middle and superior temporal gyrus; the control group showed significant activation in the R anterior and posterior cerebellum, R middle and superior temporal gyrus, R middle frontal gyrus, R insular cortex, R supramarginal gyrus and R precentral gyrus. Post-intervention, during the active>passive condition, R posterior cerebellum activation was still significant (p<0.05) for the intervention group; R anterior cerebellum, left (L) middle and inferior frontal gyrus, and R superior parietal lobe activation was found to be significant (p<0.000) for the control group, although these areas were not found to be significantly activated at baseline for the control group. Conclusion We could not provide confirmatory evidence for the efficacy of a novel VRET program for pain catastrophization in patients with FMS. However, the findings of this study does suggest that pain catastrophization in patients with FMS could be confirmed with fMRI. Research is therefore warranted to further develop a proper VRET exercise program and to test the effect of this program on pain catastrophization in patients with FMS.
AFRIKAANSE OPSOMMING: Navorsing doelstelling Om 'n nuwe konsep dat die blootstelling van pasiënte met fibromialgie sindroom (FMS) aan beeldmateriaal van oefening, ontlok neurofisiologiese veranderinge in funksionele brein-areas wat verband hou met pyn katastrofering te toets; sodoende voorlopige steun vir die verdere ontwikkeling/toetsing van 'n virtuele realiteit blootstelling terapie (VRET) oefenprogram wat gemik is op die vermindering van pyn katastrofering na oefenterapie in pasiënte met die FMS te bied. Metodes Die hoofstudie van hierdie navorsing bestaan uit 'n drie-fase verkennende fMRI studie. Fase 1 het die ontwikkeling/validering van die fMRI visuele taak behels. Fase 2 het die ondersoek van die verskille in die neurale korrelate geassosieer met pyn katastrofering tussen deelnemers met FMS en gesonde kontroles wanneer hulle blootgestel word aan verskeie beeldmateriaal van oefening en passiewe/ontspannende aktiwiteite behels. Fase 3 het die toets van die voorlopige effektiwiteit van 'n nuwe VRET oefenprogram op pyn katastrofering in deelnemers met FMS behels. Die fMRI taak het bestaan uit twee stimuli: aktiewe (oefening aktiwiteit beeldmateriaal)/passiewe (ontspannende aktiwiteit beeldmateriaal). Strukturele beelde sowel as bloed-suurstof-vlak-afhanklike (BSVA) kontraste is vir die toestande verkry en vergelyk binne-deelnemers/groepe en tussen-groepe. Die toestand van belang was die aktiewe>passiewe toestand (waar brein aktivering vir die passiewe toestand afgetrek is van die aktiewe toestand). Die brein volumes wat ingesamel tydens die 'aan' toestande is vergelyk met die brein volumes wat ingesamel is gedurende die 'af' toestande met die gebruik van Studente se t-toets. Drempel statistiek beelde is gegroepeer deur Z> 2,3 en 'n (gekorrigeerde) groepeerde betekenisvolle drempel van p = 0.05. Resultate Die regter (R) middel- en inferior-frontale gyrus en R posterior serebellum is betekenisvol geaktiveer vir die deelnemers met FMS, maar nie vir die gesonde kontrole groep nie, gedurende die aktiewe>passiewe toestand (fase 2). By basislyn, tydens die aktiewe>passiewe toestand (fase 3), die intervensie / VRET groep het betekenisvolle aktivering (p <0.05) in die R insulaire korteks, R anterior en posterior serebellum, R para- hippokampus gyrus, R middel-frontale gyrus, R korpus kallosum, R talamus, R supramarginale gyrus en R middel- en superior-temporale gyrus; die kontrole groep het betekenisvolle aktivering in die R anterior en posterior serebellum, R middel- en superior-temporale gyrus, R middel-frontale gyrus, R insulaire korteks, R supramarginale gyrus en R presentrale gyrus. Post-intervensie, tydens die aktiewe>passiewe toestand, was R posterior serebellum aktivering betekenisvol (p <0.05) vir die intervensie groep; R anterior serebellum, links (L) middel- en inferior-frontale gyrus en R superior pariëtale lob aktivering was betekenisvol (p <0.000) vir die kontrole groep, alhoewel geen betekenisvolle basislyn aktivering in hierdie areas by die kontrole groep plaasgevind het nie. Gevolgtrekking Ons kan nie bewyse vir die effektiwiteit van 'n nuwe VRET program vir pyn katastrofering in pasiënte met FMS bevestig nie. Nietemin, dui die bevindinge van hierdie studie wel daarop dat pyn katastrofering in pasiënte met FMS bevestig kon word met fMRI. Verdere navorsing is dus geregverdig om 'n behoorlike VRET oefenprogram te ontwikkel en die uitwerking van hierdie program op pyn katastrofering in pasiënte met FMS te toets.
Strandow, Daniel. "Fighting for Aid : Foreign Funding and Civil Conflict Intensity." Doctoral thesis, Uppsala universitet, Institutionen för freds- och konfliktforskning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-231034.
Full textRukema, Joseph Rudigi. "An exploration of rural communities' and government response strategies to drought in South Africa : the case of Msinga villages in KwaZulu-Natal province." Thesis, 2010. http://hdl.handle.net/10413/10431.
Full textThesis (Ph.D.)-University of KwaZulu-Natal, Durban, 2010.
Mathivha, Fhumulani Innocentia. "Drought in Luvuvhu River Catchment - South Africa: Assessment, Characterisation and Prediction." Thesis, 2020. http://hdl.handle.net/11602/1522.
Full textDepartment of Hydrology and Water Resources
Demand for water resources has been on the increase and is compounded by population growth and related development demands. Thus, numerous sectors are affected by water scarcity and therefore effective management of drought-induced water deficit is of importance. Luvuvhu River Catchment (LRC), a tributary of the Limpopo River Basin in South Africa has witnessed an increasing frequency of drought events over the recent decades. Drought impacts negatively on communities’ livelihoods, development, economy, water resources, and agricultural yields. Drought assessment in terms of frequency and severity using Drought Indices (DI) in different parts of the world has been reported. However, the forecasting and prediction component which is significant in drought preparedness and setting up early warning systems is still inadequate in several regions of the world. This study aimed at characterising, assessing, and predicting drought conditions using DI as a drought quantifying parameter in the LRC. This was achieved through the application of hybrid statistical and machine learning models including predictions via a combination of hybrid models. Rainfall and temperature data were obtained from South African Weather Service, evapotranspiration, streamflow, and reservoir storage data were obtained from the Department of Water and Sanitation while root zone soil moisture data was derived from the NASA earth data Giovanni repository. The Standardised Precipitation Index (SPI), Standardised Precipitation Evapotranspiration Index (SPEI), Standardised Streamflow Index (SSI), and Nonlinear Aggregated Drought Index (NADI) were selected to assess and characterise drought conditions in the LRC. SPI is precipitation based, SPEI is precipitation and evapotranspiration based, SSI is based on streamflow while NADI is a multivariate index based on rainfall, potential evapotranspiration, streamflow, and storage reservoir volume. All indices detected major historical drought events that have occurred and reported over the study area, although the precipitation based indices were the only indices that categorised the 1991/1992 drought as extreme at 6- and 12- month timescales while the streamflow index and multivariate NADI underestimated the event. The most recent 2014/16 drought was also categorised to be extreme by the standardised indices. The study found that the multivariate index underestimates most historical drought events in the catchment. The indices further showed that the most prevalent drought events in the LRC were mild drought. Extreme drought events were the least found at 6.42%, 1.08%, 1.56%, and 4.4% for SPI, SPEI, SSI, and NADI, respectively. Standardised indices and NADI showed negative trends and positive upward trends, respectively. The positive trend showed by NADI depicts a decreased drought severity over the study period. Drought events were characterised based on duration, intensity, severity, and frequency of drought events for each decade of the 30 years considered in this study i.e. between 1986 – 1996, 1996 – 2006, 2006 – 2016. This was done to get finer details of how drought characteristics behaved at a 10-year interval over the study period. An increased drought duration was observed between 1986 - 1996 while the shortest duration was observed between 1996 - 2006 followed by 2006 - 2016. NADI showed an overall lowest catchment duration at 1- month timescale compared to the standardised indices. The relationship between drought severity and duration revealed a strong linear relationship across all indices at all timescales (i.e. an R2 of between 0.6353 and 0.9714, 0.6353 and 0.973, 0.2725 and 0.976 at 1-, 6- and 12- month timescales, respectively). In assessing the overall utilisation of an index, the five decision criteria (robustness, tractability, transparency, sophistication, and extendibility) were assigned a raw score of between one and five. The sum of the weighted scores (i.e. raw scores multiplied by the relative importance factor) was the total for each index. SPEI ranked the highest with a total weight score of 129 followed by the SSI with a score of 125 and then the SPI with a score of 106 while NADI scored the lowest with a weight of 84. Since SPEI ranked the highest of all the four indices evaluated, it is regarded as an index that best describes drought conditions in the LRC and was therefore used in drought prediction. Statistical (GAM-Generalised Additive Models) and machine learning (LSTM-Long Short Term Memory) based techniques were used for drought prediction. The dependent variables were decomposed using Ensemble Empirical Mode Decomposition (EEMD). Model inputs were determined using the gradient boosting, and all variables showing some relative off importance were considered to influence the target values. Rain, temperature, non-linear trend, SPEI at lag1, and 2 were found to be important in predicting SPEI and the IMFs (Intrinsic Mode Functions) at 1, 6- and 12- month timescales. Seven models were applied based on the different learning techniques using the SPEI time series at all timescales. Prediction combinations of GAM performed better at 1- and 6- month timescales while at 12- month, an undecomposed GAM outperformed the decomposition and the combination of predictions with a correlation coefficient of 0.9591. The study also found that the correlation between target values, LSTM, and LSTM-fQRA was the same at 0.9997 at 1- month and 0.9996 at 6- and 12- month timescales. Further statistical evaluations showed that LSTM-fQRA was the better model compared to an undecomposed LSTM (i.e. RMSE of 0.0199 for LSTM-fQRA over 0.0241 for LSTM). The best performing GAM and LSTM based models were used to conduct uncertainty analysis, which was based on the prediction interval. The PICP and PINAW results indicated that LSTM-fQRA was the best model to predict SPEI timeseries at all timescales. The conclusions drawn from drought predictions conducted in this study are that machine learning neural networks are better suited to predict drought conditions in the LRC, while for improved model accuracy, time series decomposition and prediction combinations are also implementable. The applied hybrid machine learning models can be used for operational drought forecasting and further be incorporated into existing early warning systems for drought risk assessment and management in the LRC for better water resources management. Keywords: Decomposition, drought, drought indices, early warning system, frequency, machine learning, prediction intervals, severity, water resources.
NRF
Alberts, Marius. "Business rescue in South Africa : a critical review of the regulatory environment." Diss., 2005. http://hdl.handle.net/2263/23946.
Full textGordon Institute of Business Science (GIBS)
unrestricted
Nethavhani, Ntavhanyeni G. "Assessment of small-holder farmers' vulnerability to the 2004/2005 drought in Makhado municipality." Thesis, 2013. http://hdl.handle.net/10539/12785.
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Austin, Wayne Devlin. "Drought in South Africa : lessons lost and/or learnt from 1990 to 2005." Thesis, 2009. http://hdl.handle.net/10539/5991.
Full textNembilwi, Ndamulelo. "Vulnerability and Adaptation to Drought Hazards in Mopani District Municipality, South Africa: Towards Disaster Risk Reduction." Diss., 2019. http://hdl.handle.net/11602/1500.
Full textDepartment of Geography and Geo-Information Sciences
South Africa was badly affected by the recent 2015/16 severe drought. Water levels in dams declined drastically resulting in decimation of livestock herds and widespread crop failure. Mopani District Municipality is comprised of many agricultural activities that contribute to the economy and social development of the country. The study evaluated the nature of the drought hazard - its impacts, vulnerability and adaptation strategies employed by rural communities of Mopani District. The study used a mixed method approach with both quantitative and qualitative datasets. The district was divided into two distinct climatic areas, the eastern lowveld which includes the Greater-Giyani, Ba-Phalaborwa and Maruleng Local Municipalities and the western highveld which includes Greater- Tzaneen and Greater- Letaba Local Municipalities. Questionnaires were administered among community members whilst key informant interviews were conducted among relevant government and municipal officials. Anomalies in long term climate data were analysed to determine the frequency and intensity of drought in the district. Drought characterisation was done using a Standardised Precipitation and Evapotranspiration Index whilst vegetation anomaly maps, maize yields and dam level data were used to analyse the impacts of drought across the district. Levels of vulnerability to drought were determined using the Household Vulnerability Index. Spatially distinct patterns of drought conditions across the district were remarkable with wet conditions on the western highveld along the escarpment and harsh dry conditions towards the eastern lowveld. It was found that nearly half the time there is some form of drought or another in the district which may be linked to the remote El Nino phenomenon. Community vulnerabilities have a direct impact on human welfare and different strategies are employed to adapt to drought hazards both at community and district levels. The study showed a link between drought hazard extent and vulnerability. Community members are adapting using conservation agriculture, selling fire-wood, accessing boreholes and rearing chickens, amongst other means to survive in these harsh climatic conditions. Local government intervention strategies include supply of seeds and fertilisers, selling fodder at a cheaper price and supplying water using trucks. The findings of this study contribute to disaster risk reduction efforts in Mopani District Municipality
NRF
Rakgwale, Thabang Jantjie. "Adaption to drought conditions by smallholder livestock farmers : lessons from2014-2016 drought conditions in the Limpopo region." Diss., 2020. http://hdl.handle.net/10500/27290.
Full textThe Limpopo Province is a disaster-prone province, with drought being the most common natural disaster. From the year 2012 onwards, the province experienced extremely dry conditions that culminated in a severe drought in 2016. This negatively impacted the livelihoods of smallholder livestock farmers and the welfare of their livestock. The study investigated the coping strategies that were adopted by smallholder livestock farmers during drought conditions and the factors that were associated with animal loss during the drought that affected the region between 2014 and 2016. A randomly selected sample of 281 smallholder livestock farmers aged 18 years and older from the Greater Letaba Local Municipality participated in the study. Structured interviews, aided by questionnaires were used to collect the primary data. Proportions of categorical variables and the mean and standard deviation for continuous variables were computed and presented as tables and figures. A Poisson regression model was fitted to the data to identify factors that were significantly associated with loss of animals during the drought. More than half (55.50%; n=116) of the participants were made aware of the 2014–2016 drought through the agricultural extension officers, followed by 19.14% (n=40) who got to know about it through radio channels. More than half of the participants (58.29%; n=123) were aware of the impending drought. The most common support received from government agencies to help cope with the drought was in the form of animal feed (80%; n=124). Although most of the farmers (73.55%; n=114) benefitted from the support they received, slightly more than half (53.74%; n=151) did not cope well with the drought conditions. While Bellevue (B=-0.199; 95% CI: -0.380 -0.019) was negatively associated with loss of animals, Mokwakwaila (B=0.568; 95% CI: 0.405 0.731) had a strong positive association with loss of animals. Being married (B=-0.060; 95% CI: -0.305 0.183) or divorced (B= -0.035; 95% CI: -0.316 0.246) was negatively associated with loss of animals. Years of experience in farming (B=0.022; 95% CI: 0.010 0.033) and not receiving support during were strongly positively associated with loss of animals (B=0.324; 95% CI: 0.189 0.459). The low number of farmers who were aware of the impending drought and the large number of farmers who did not cope well suggests that many farmers in the area were not prepared for the drought. Groups such as widows, widowers and farmers who have many years of farming experience are high-risk groups and should be targeted for interventions in the event of a drought. More measures are needed to ensure that all agricultural centres are prepared and supported in event of a drought so as to minimise the impact of drought on local communities.
Die provinsie Limpopo is 'n rampgevoelige provinsie, met droogte as die mees algemene natuurramp. Vanaf 2012 het die provinsie uiters droë toestande beleef wat in 2016 op 'n ernstige droogte uitgeloop het. Dit het 'n negatiewe uitwerking gehad op die lewensonderhoud van kleinboere en die welstand van hul vee. Die studie het ondersoek ingestel na die hanteringstrategieë wat deur veeboere in kleinvee tydens droogtetoestande aangeneem is, en die faktore wat verband hou met diereverlies tydens die droogte wat die streek tussen 2014 en 2016 geraak het. 'N Lukraak geselekteerde steekproef van 281 kleinboere van 18 jaar en ouer van die Greater Letaba Local Munisipaliteit het aan die studie deelgeneem. Gestruktureerde onderhoude, gehelp deur vraelyste, is gebruik om die primêre data in te samel. Verhoudings van kategoriese veranderlikes en die gemiddelde en standaardafwyking vir deurlopende veranderlikes is bereken en as tabelle en figure aangebied. 'N Poisson-regressiemodel is op die data toegepas om faktore te identifiseer wat beduidend verband hou met die verlies aan diere tydens die droogte. Meer as die helfte (55,50%; n=116) van die deelnemers is bewus gemaak van die droogte 2014–2016 deur die landbouvoorligtingsbeamptes, gevolg deur 19,14% (n =40) wat dit via radiokanale leer ken het. Meer as die helfte van die deelnemers (58,29%; n=123) was bewus van die dreigende droogte. Die mees algemene steun van regeringsinstansies om die droogte die hoof te bied, was in die vorm van veevoer (80%; n=124). Alhoewel die meerderheid van die boere (73,55%; n=114) voordeel getrek het uit die steun wat hulle gekry het, het die droogtetoestande nie goed hanteer nie (53,74%; n=151). Terwyl Bellevue (B= -0.199; 95% CI -0.380 -0.019) negatief geassosieer is met verlies aan diere, is Mokwakwaila (B= 0,568; 95% CI 0,405 0,731) sterk positief geassosieer met verlies aan diere. Om getroud te wees (B= -0.060; 95% CI -0.305 0.183) of geskei (B= -0.035; 95% CI 0.316 0.246) was negatief geassosieer met verlies aan diere. Jare se ondervinding in die boerdery (B=0,022; 95% CI 0,010 0,033) en om nie ondersteuning gedurende te ontvang nie, was sterk positief geassosieer met die verlies van diere (B=0.324; 95% CI 0.189 0.459). Die lae aantal boere (ongeveer die helfte) wat bewus was van die dreigende droogte, dui daarop dat baie boere in die omgewing nie voorbereid was op die droogte nie. Groepe soos weduwees, wewenaars en boere met baie jare se boerdery-ervaring, is hoërisikogroepe en moet geteiken word vir ingrypings in die geval van 'n droogte. Meer maatreëls is nodig om te verseker dat alle landbousentrums voorberei en ondersteun word in geval van 'n droogte om die impak van droogte op plaaslike gemeenskappe te verminder.
Komelelo ke bothata bjo bogolo kudu go tsa temo/bolemi, segolothata re lebeletse balemirui ba bannyane. Limpopo province e na le kgatelelego ye kgolo kudu ka komelelo gagolo ge re lebeletse tsa bolemi. Nako le nako komelelo e tsea karolo ye kgolo moo e feleletsago e gatelela tsa temo. Tabakgolo ya rena kego lebelela ditsela le mehuta ye e fapanego yeo e shomishitshwego ke balemi go lwantshana le bothata bja komelelo gareng ga ngwaga wa 2014- 2016. Thuto ye e kgobokantshitshwe gotwsa go masepala wa motse selegae wa Greater Letaba Local Municipality, karolo ya Mopani, profenseng ya Leboa mo Afrika Borwa. Tshedimosho ye e hweditshwe ka mokgwa wa poledisano le balemi bao ba fapanego ba go lekana nomoro ya 281 ya balemi go dinaga tsa go fapanafapana. Poledisano ebile ka mokgwa wa peakanyanyo ya dopotsisho. Tshedimosho ye e kopantshitshwe le go hlathollwa ka mokgwa wa go ikgetha wa Strata Version 14. Hlathollo ya go ikgetha e berekishitshwe ka mokgwa wa ditiragalo yoya ka nako le dipalopalo tsa go kopantswa fao tahlegelo e sa tsebjego go ka lekanywa.le bokae la diperesente. Mabakakgolo ao a hlolago tahlegelo ya diruiwa a nyakishitswe ka mokgwa wa Poisson Regression Model. Bogolo bja (64.77%) go bao ba arabilego ebile banna le bogolo bja (74.38%) bja balemi ba be ba tseba ka komelelo ye e batamelago. Go feta halofo (55.50%) ya bao ba arabilegoba tsebishitshwe ka komelelo yeo e batamelang go tswa go bagakolodi, gomme gwa latela thelebisheni (8.13%) le dikuranta (1.44%). Go feta bogolo bja (58.29%) bja bao ba ikarabetsego ba laeditswe gore ba be ba tseba ka komelelo yeo e batamelago ke fao ba bego ba ikemiseditse. Bontshi bja thekgo (80%) yeo balemi ba e hweditsego ebile ka mokgwa wa dijo tsa diphoofolo, gwa latela latela thekgo yeo e filwego ka mokgwa wa meets le dithibela malwetsi go diphoofolo. Bogolo bjago makatsa (73.55%) bo laeditse gore thekgo yeo ba e hweditsego e ba tshwetsi molemo le diphoofolo tsa bona, go feta bonnyane (26.45%) bjoo bo rilego thekgo yeo ba e hweditsegobka nako ya komelelo ga se ya ba tshwela mohola goba gaya ba hola ka selo. Go ba modudi wa Bellevue (B= -0.199; 95% CI: -0.380 -0.019, p= 0.031) le Mokwakwaila (B=0.568; 95% CI: 0.405 0.731, p= 0.0001) ebile nthla ye bohlokwa go tahlegelo ya dirui. Go oketsa seo, go nyadiwa (B=0.942; 95% CI: 0.737 1.201), go hladiwa (B= 0.966 (95% CI: 0.729 1.279), le palo ya mengwaga ya botsebingo tsa temo (B=1.022; 95% CI: 1.010 1.034, p= 0.0001), le ge eba molemi ga se a hwetse thusho ka nako ya komelelo (B=0.324; 95% CI: 0.189 0.459, p= 0.0001) ebile dinhla tsa bohlokwa go tahlegelo ya dirui ka nako ya komelelo. Palo ya fase ba balemi bao ba bego bas a tsebe ka komelelo yeo e bego e batamela, e kgathile tema ye kgolo mo tabeng ya go paledisha balemi go ipeakanyela kgahlanong le komelelo yeo e bego e batamela. Ka fao seo se ba amile gampe. Mo nakong ye e tlang, matsapa a mantsi a swanetswi go tseiwa go kgonthishisha gore tsa temo ka moka di itokishetsa ka go lekana. Mmusho o swanetse go beeletsa kudu go lefapha la bagakolodi ka go oketsa palo ya mafapha a bagakolodi.
Agriculture and Environmental Sciences
M.Sc. (Agriculture)
Nkoana, K. D. "Evaluation of Diverse Cowpea (Vigna unguiculata [L.] Walp.) Germplasm for Field Performance and Drought Tolerance." Diss., 2018. http://hdl.handle.net/11602/1089.
Full textPyle, Desmond Mark. "Severe convective storm risk in the Eastern Cape Province of South Africa /." 2006. http://eprints.ru.ac.za/883/.
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