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dc.contributor.authorPretorius, MR
dc.contributor.authorEsler, KJ
dc.contributor.authorHolmes, PM
dc.contributor.authorPrins, N
dc.date.accessioned2007-06-20T11:15:03Z
dc.date.available2007-06-20T11:15:03Z
dc.date.issued2007-04
dc.identifier.issn0254-6299en
dc.identifier.urihttp://hdl.handle.net/123456789/295
dc.description.abstractIn 1998, a study was initiated to assess the relative effectiveness of three different sowing treatments for reducing soil erosion and restoring indigenous riparian vegetation cover after alien clearing in the Western Cape. The study concluded that introducing a mixture of seed to a riparian zone with a history of invasion can increase indigenous vegetation cover and species richness and has a stabilizing effect on eroded riverbanks. We report on a re-assessment of the restoration plots after a period of 8 years (with no follow up control) and a summer fire in 2005. The re-assessment included a survey of all the burnt woody material within the different treatment plots to determine species presence (dead or resprouting) and abundance, as well as a survey of seedlings in a post-fire environment. Woody invasive plants (IAPs) dominated all plots, and had survived the burn with the majority re-sprouting, indicating the dire need for follow-up control to justify initial clearing and restoration cost. However the re-assessment revealed that indigenous vegetation cover was considerably higher in the plots that had received sowing treatments, while the control plots were dominated by Acacia mearnsii, the main invader of the tributary. Restoration of riparian areas after alien plant clearing has potential, but must be coupled with a long-term plan for follow up removal of post clearing IAP recruits.en
dc.description.sponsorshipDepartment of Water Affairs and Forestry in collaboration with Working for Wateren
dc.format.extent59782 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.subjectAlien clearingen
dc.subjectRiparian vegetationen
dc.subjectRestorationen
dc.subjectFireen
dc.titleRe-evaluation of a riparian restoration experiment in the Western Cape Province: Status 8 years down the lineen
dc.typePublished Conference Proceedingsen
dc.cibjournalSouth African Journal of Botanyen
dc.cibprojectInvasive and remediation effects on biodiversityen


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