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Browsing by Author "Van der Merwe, Martina R"

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Drivers of inter-annual variability in Net Ecosystem Exchange in a semi-arid savanna ecosystem, South Africa

Author: Archibald, SA ; Kirton, A ; Van der Merwe, Martina R ; Scholes, RJ ; Williams, CA ; Hanan, N Date: 2009 Inter-annual variability in primary production and ecosystem respiration was explored using eddy-covariance data at a semi-arid savanna site in the Kruger Park, South Africa. New methods of extrapolating night-time respiration to the entire ... Read more
EO2HEAVEN: mitigating environmental health risks

Author: Le Roux, Wouter J ; Du Preez, M ; De Klerk, L ; Hohls, D ; McFerren, G ; Vahed, Anwar ; Van der Merwe, Martina R ; Van Zyl, T Date: 2013 EO2HEAVEN has the primary objective to contribute to a better understanding of the complex relationships between environmental changes and their impact on human health. To achieve this, the project followed a multidisciplinary and user-driven ... Read more
Estimation of net ecosystem exchange at the Skukuza flux site, Kruger National Park, South Africa

Author: Nickless, A ; Archibald, SA ; Van der Merwe, Martina R ; Scholes, RJ ; Williams, CA ; Hanan, N Date: Mar 2011 Annual estimates of gross primary production (GPP) and ecosystem respiration (Reco) were obtained for the Skukuza flux site, Kruger Park, South Africa, based on the eddy covariance flux data. A new method of extrapolating night-time respiration ... Read more
Fuzzy expert systems and GIS for cholera health risk prediction in southern Africa

Author: Fleming, GJ ; Van der Merwe, Martina R ; Mcferren, GA Date: 2007 Cholera (Vibrio cholerae) is endemic in southern Africa and frequently breaks out in epidemics along the eastern seaboard. Extensive resources are directed at combating cholera yet it remains a significant problem. Limited resources could ... Read more
Greenhouse gas emissions from South Africa

Author: Scholes, RJ ; Van der Merwe, Martina R Date: May 1996 South African greenhouse gas emissions contributed about 1.2% to the global increase in the greenhouse effect in 1988. South Africa generated trace gases with a radiation absorption potential over a 20-year period equivalent to 534 million ... Read more
Investigation of South African plants for anti cancer properties

Author: Khorombi, TE ; Fouché, Gerda ; Kolesnikova, NI ; Maharaj, VJ ; Nthambeleni, R ; Van der Merwe, Martina R Date: 2006 A collaborative research programme between the Council for Scientific and Industrial Research (CSIR) in South Africa and the National Cancer Institute (NCI) in the USA aimed at the screening of plant extracts and identification of potentially ... Read more
Land and agronomic potential for biofuel production in Southern Africa

Author: Von Maltitz, Graham P ; Van der Merwe, Martina R Date: Apr 2017 The Southern African region, from a purely biophysical perspective, has huge potential for biofuel production, especially in Mozambique and Zambia. Although many of the soils are sandy and acidic, with careful management and correct fertilization, ... Read more
Mitigating the future impact of Cholera Epidemics

Author: Woodborne, S ; Pienaar, M ; Van der Merwe, Martina R Date: Nov 2008 Cholera epidemics have been analysed using epidemiological models that depend on human-to environment- to-human spread of toxigenic Vibrio cholerae bacteria (Koelle et al. 2004, Koelle et al. 2005). Within such a framework the vulnerable human ... Read more
Potential for, and costs of, reducing greenhouse gas emissions from non-energy sources in South Africa

Author: Taviv, R ; Wise, R ; Van der Merwe, Martina R ; Winkler, H Date: Nov 2008 The South African Government commissioned a detailed study entitled Long-Term Mitigation Scenarios (LTMS). This study defined and quantified the mitigation options and associated costs available under several energy and economic futures. ... Read more
Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa

Author: Taviv, R ; Wise, R ; Van der Merwe, Martina R ; Winkler, H Date: Nov 2008 The South African Government commissioned a detailed study entitled Long-Term Mitigation Scenarios (LTMS). This study defined and quantified the mitigation options and associated costs available under several energy and economic futures. ... Read more
A survey of Vibrio cholerae O1 and O139 in estuarine waters and sediments of Beira, Mozambique

Author: Du Preez, M ; Van der Merwe, Martina R ; Cumbana, A ; Le Roux, Wouter J Date: Oct 2010 This study determined whether the estuarine and freshwater environment in Beira, Mozambique, serves as a reservoir of Vibrio cholerae O1 and O139. Ninety-nine estuarine water samples were collected at 6 sites in Beira. An additional 54 samples ... Read more

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Browsing by Author "Van der Merwe, Martina R"

Browsing by Author "Van der Merwe, Martina R"

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Social Connect