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University of Cape Town (2000)

The use and valuation of natural fuelwood resources in Paulshoek, Namaqualand and the ecological impacts on rangeland dynamics

Solomon, Anastelle M

Titre : The use and valuation of natural fuelwood resources in Paulshoek, Namaqualand and the ecological impacts on rangeland dynamics

Auteur : Solomon, Anastelle M

Université de soutenance : University of Cape Town.

Grade : Master of Science (MS) 2000

Résumé partiel
This study was undertaken in Paulshoek, a rural village .in Namaqualand, to identify how important natural fuelwood resources are for the daily survival of the inhabitants. Household interviews, household surveys and PRA (Participatory Rural Appraisal) exercises were used to identify the plant species used, the purpose of use and quantities used per household on a daily and annual basis. Twelve species were identified as important and most frequently used fuelwood species. Inhabitants select fuelwood species on the basis of quality, use and availability. Fuelwood is used for a variety of purposes such as cooking, heating, ironing and baking. Good quality species (e.g. Rhus undulata) are used for in-house activities such as cooking, heating and ironing, while low quality fuelwood (Galenia africana) is used for baking and kindling. Households use on average 8.7 kg of fuelwood per day which totals to 2.18 tonneslhh/yr taking seasonal differences into account. Wood collectors walk approximately 7.2 km to collect wood and make at least 152 trips per year. The net total value offuelwood used in Paulshoek is about R 366 272 Iyr. Rhus undulata is the most preferred and heavily used fuelwood speCIes In Paulshoek. Five different harvesting treatments, line transects, aerial photography, matched ground photography, radiocarbon dating and modeling experiments were used to investigate the regrowth and survival ability of R. undulata. Results from harvesting treatments indicate that growth of R. undulata is stimulated by the intensity of harvesting (l00% as to 25% harvesting). Growth and survival is negatively impacted when below ground material (stumps) are removed. The number of R. undulata individuals has not been reduced over the last approximately 60 years. Even though the number of individuals has not changed, modelled results indicate that the availability of dead wood has been reduced. The fuelwood harvesting at present consumption level is unsustainable and will be depleted within the next 25 years.

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