Age determination of Acacia erioloba trees in the Kalahari

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dc.contributor.author Steenkamp, Carol Judith
dc.contributor.author Vogel, J.C.
dc.contributor.author Fuls, A.
dc.contributor.author Van Rooyen, Noel, 1950-
dc.contributor.author Van Rooyen, M.W. (Margaretha W.), 1950-
dc.date.accessioned 2008-05-27T09:58:57Z
dc.date.available 2008-05-27T09:58:57Z
dc.date.issued 2008-04
dc.description.abstract High quality wood core samples were collected from individual Acacia erioloba trees of unknown age in the Kgalagadi Transfrontier Park. In the majority of samples examined, seasonal changes were reflected in the wood anatomy as bands of marginal parenchyma on the polished surfaces of discs or cores. Estimated radiocarbon age was determined by means of 14C analysis for all samples. There was a strong correlation between the annual growth ring count and estimated radiocarbon age. A correlation was also found between age and stem circumference. Age structure of several A. erioloba populations in the Kgalagadi Transfrontier Park was subsequently determined. It could be demonstrated that the populations growing in the bed of the Nossob River showed poor recruitment; however, no clear relationship was found between flooding and regeneration of A. erioloba in the riverbed. The population growing in the dune field had a healthy age structure. en
dc.format.extent 481279 bytes
dc.format.mimetype application/pdf
dc.identifier.citation Steenkamp, CJ, Vogel, JC, Fuls, A, Van Rooyen, N & Van Rooyen, MW 2008, 'Age determination of Acacia erioloba trees in the Kalahari', Journal of Arid Environments, vol.72, issue 4, pp. 302-313. [http://www.sciencedirect.com/science/journal/01401963] en
dc.identifier.issn 0140-1963
dc.identifier.other 10.1016/j.jaridenv.2007.07.015
dc.identifier.uri http://hdl.handle.net/2263/5603
dc.language.iso en en
dc.publisher Elsevier en
dc.rights Elsevier en
dc.subject Age structure en
dc.subject Carbon dating en
dc.subject Dendrochronology en
dc.subject Population dynamics en
dc.subject Wood anatomy en
dc.subject.lcsh Acacia eriobola -- Age determination -- Kalahari en
dc.subject.lcsh Tree-rings en
dc.title Age determination of Acacia erioloba trees in the Kalahari en
dc.type Postprint Article en


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