Monitoring the re-growth rate of alien vegetation after fire on Agulhas Plain, South Africa

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dc.contributor.advisorSmith, N.
dc.contributor.authorFatoki, Oluwakemi Busayoen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Arts and Social Sciences. Dept. of Geography and Environmental Studies.
dc.date.accessioned2008-11-05T09:04:54Zen_ZA
dc.date.accessioned2010-06-01T08:50:56Z
dc.date.available2008-11-05T09:04:54Zen_ZA
dc.date.available2010-06-01T08:50:56Z
dc.date.issued2007-03en_ZA
dc.descriptionThesis (MSc (Geography and Environmental Studies))--University of Stellenbosch, 2007.
dc.description.abstractThe Agulhas Plain, an area rich in fynbos, was monitored within six months after the February 2006 fire. The potential of using medium resolution imagery, specifically from the Moderate Resolution Imaging Spectroradiometer (MODIS) in determining the re-growth rates of indigenous and alien vegetation types after fire was explored. Pixels representing dense areas of each vegetation type were selected. There was a significant difference in the pixels selected for each vegetation type. A time series of Normalized Difference Vegetation Index (NDVI) data was derived and fitted to functions, such as Double Logistics and Asymmetric Gaussian as implemented in the TIMESAT software. The results show that alien vegetation grows faster after a fire occurrence than in its absence. Within the specified months of monitoring, it was observed that fynbos grew faster than the alien vegetation. Also, the re-growth rates of vegetation on the coastal soils were higher than those of vegetation on the inland soils. The determination of the re-growth rate was necessary to assist resource managers determine the appropriate time for follow-up of clearing invaded sites after fire.en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/2514
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectDissertations -- Geography and environmental studiesen
dc.subjectTheses -- Geography and environmental studiesen
dc.subjectFire ecology -- South Africa -- Agulhas Plain -- Remote sensingen
dc.subjectAlien plants -- Effect of fires on -- South Africa -- Agulhas Plainen
dc.subjectFynbos -- Effect of fires on -- South Africa -- Agulhas Plainen
dc.subjectVegetation surveys -- South Africa -- Agulhas Plain -- Remote sensingen
dc.subjectAlien plants -- Ecology -- South Africa -- Agulhas Plainen
dc.subjectAlien plants -- South Africa -- Agulhas Plain -- Growthen
dc.titleMonitoring the re-growth rate of alien vegetation after fire on Agulhas Plain, South Africaen_ZA
dc.typeThesisen_ZA
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