Impact of drought on grape yields in the Western Cape, South Africa

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dc.contributor.advisorBabatunde, Abiodunen_ZA
dc.contributor.advisorCrespo , Olivieren_ZA
dc.contributor.authorAraujo, Julioen_ZA
dc.date.accessioned2014-11-05T03:41:32Z
dc.date.available2014-11-05T03:41:32Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractDroughts 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.en_ZA
dc.identifier.apacitationAraujo, J. (2014). <i>Impact of drought on grape yields in the Western Cape, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Environmental and Geographical Science. Retrieved from http://hdl.handle.net/11427/9106en_ZA
dc.identifier.chicagocitationAraujo, Julio. <i>"Impact of drought on grape yields in the Western Cape, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Environmental and Geographical Science, 2014. http://hdl.handle.net/11427/9106en_ZA
dc.identifier.citationAraujo, J. 2014. Impact of drought on grape yields in the Western Cape, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Araujo, Julio AB - Droughts 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. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Impact of drought on grape yields in the Western Cape, South Africa TI - Impact of drought on grape yields in the Western Cape, South Africa UR - http://hdl.handle.net/11427/9106 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9106
dc.identifier.vancouvercitationAraujo J. Impact of drought on grape yields in the Western Cape, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Environmental and Geographical Science, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9106en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Environmental and Geographical Scienceen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.titleImpact of drought on grape yields in the Western Cape, South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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