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26 August 2022 | Story NONSINDISO QWABE | Photo Boitumelo Molefe
Prof Geofrey Mukwada
Prof Geofrey Mukwada from the Department of Geography on the Qwaqwa Campus delivered his inaugural lecture, which focused on elevation-dependent warming in the Drakensberg Mountain region.

South Africa is generally regarded as a thirsty country due to water scarcity nationally. Even a rise of 0,5 °C in climate temperatures could have devastating effects on the environment.

Delivering his inaugural lecture on 22 August 2022 – a first for the Qwaqwa Campus in many years – Prof Geofrey Mukwada of the Department of Geography at the University of the Free State (UFS) Qwaqwa Campus painted a picture of the long-term effects of climate change on ecological, social, and economic aspects of the environment. The effects of climate change are being felt in all regions of the world, and the Drakensberg region in particular is beginning to bear the brunt.

Elevation-dependent warming a threat to socio-ecological systems

Introducing his topic, The last days of plenty: an assessment of elevation-dependent warming in the Drakensberg Mountain region between 1980 and 2018 and its potential implications for social-ecological systems in the region and downstream communities, Prof Mukwada said ‘last days’ was a euphemism used figuratively to imply the impending loss of environmental resources in the mountains because of climate change.

According to Prof Mukwada, elevation-dependent warming in the Drakensberg would pose serious implications for the overall rural livelihoods, regional trade, and biodiversity conservation.

“The Drakensberg Mountains is made up of a chain of several mountains and is home to a lot of activities. It is important for rural livelihood, including agriculture, cultivation of different forms, fisheries, and tourism, and if the climate is therefore changing and elevation-dependent warming is taking place, we see a threat to socio-ecological systems in many ways.”

In his lecture, Prof Mukwada discussed the three-decade-long investigation to determine if elevation-dependent warming is taking place at several points of the mountains, and to assess its environmental implications for the region and downstream communities. Using a time-series analysis standardised precipitation and evaporation index (SPEI) and monthly maximum temperature and locational and elevation data, the investigation monitored climate change trends between 1980 and 2018.

Development of research-based solutions

He said results did not confirm the existence of elevation-dependent warming in the Drakensberg Mountain region, but statistically significant evidence has shown that the region is becoming warmer and facing increasing aridity.

“It is worrisome in the sense that even such a small change can have devastating effects on the environment.”

In order to avert these problems, Prof Mukwada said a special climate adaptation plan for the region was necessary. The university plays a key role in this, as it can provide guidance on the process of redefining knowledge, scientific understanding and truth, in order to promote sound mountain development interventions and programmes. “We need to shift towards research-based solutions.”

Prof Mukwada is a C2 NRF-rated researcher with expertise in the application of remote sensing and geographic information systems (GIS) in integrated scientific and multidisciplinary environmental research.

News Archive

Inaugural lecture: World on verge of agricultural revolution
2008-05-19

A changing economic climate and new technology will see to a number of interesting changes in the livestock industry in the next few years. This is according to Prof. Frikkie Neser of the Department of Animal and Wildlife and Grassland Sciences, who delivered his inaugural lecture at the UFS on the subject: “The quest for a superior animal”.

Prof. Neser focused on the future of animal breeding in the next few decades.

He said the world, but especially South Africa, stand on the verge of a revolution in the agriculture sector. The whole production scenario will probably change. The high fuel and food prices are the two biggest factors that will play a role.

“Increasing fuel prices opened the door for the production of bio-fuel. The fuel industry is in direct competition with humans and the livestock industry for the same resource that result in unbelievable high prices for maize, sunflower and soya. These prices can further increase with the worldwide shortage of food,” he said.

More profitable breeds could take the place of existing breeds because of the big increase in input costs, he said. “Selection for more effective, and not maximum production, will became more important.

“There are also indications of pressure on feed lots. If this industry downsizes, it could lead to a total turnaround in the beef industry. The feed lots prefer a later maturing animal that can put on a lot of weight before fat is laid down. If this industry declines, early maturing breeds and some of the synthetic breeds, as well as crossbreeding with early maturing breeds, will play a more prominent role in the meat industry.

“This will also lead to a decline in the total number of animals in order to prevent overgrazing. This can result in an increase in imports from neighbouring countries and especially Brazil, where production costs are much lower.

“One way to increase the profitability of meat production is to utilise niche markets. There is world-wide a shift to more natural products. The demand for grass-fed beef drastically increased. According to research it is healthier than meat from feed lots and usually free of hormones and antibiotics. If factors such as traceability are put in place, this could be a very profitable niche mark for the South African meat industry,” he said.

Prof. Neser also said: “In order for breeding societies to survive they need to increase the number of members and the animals that are being registered. This they do by replacing the word stud with recorded animals. Hereby they open the door for excellent commercial animals to become part of the seed-stock industry. Another benefit is that especially in the smaller breeds more information becomes available, resulting in more accurate breeding values.”

Prof. Frikkie Neser.

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