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15 September 2022 | Story NONSINDISO QWABE | Photo UFS Photo Gallery
UFS Qwaqwa Campus
The UFS Qwaqwa Campus.

Recent global happenings have challenged communities and humanity’s capability to solve immediate and major problems. Science has been one of the spaces in which the communities have looked for solutions regarding real threats to lives related to climate change, wars, as well as social and health pandemics. The Qwaqwa Campus will be showcasing Qwaqwa Campus research and scholarship at this year’s research conference, a two-day event which will be held in person, on 29-30 September 2022 at the Senate Hall on campus.

‘Scholarship, Innovation and Science: how can research be used as a tool for the betterment of society?’

Under this theme, the conference will be a space for intellectual debate and the processing of scholarship in innovation, said Prof Pearl Sithole, Vice-Principal: Academic and Research. “Some of the societal challenges have been urgent and pressing, yet some are slow dilemmas shattering the hope of generations for a better future. This conference will present the products of ‘disciplinary and scholarly crafts’, but it also seeks to explore whether science does (or should) have a strategic direction, and perhaps this is what the concept of innovation should entail. It will ponder on whether in the age-old binary between exploratory research and praxis there is a defeating taming of the entrepreneurial edge for the expanse of science in Africa,” she said.

Prof Sithole said the campus would also be launching its research strategy for 2022 to 2026.

Guest speakers include:

• Prof Percy Hlangothi is an Associate Professor of Physical and Polymer Chemistry at the Nelson Mandela University. He is also the inaugural Director of the Centre for Rubber Science and Technology, a research entity in the Faculty of Science at the same institution.

• Mr Lukhona Mnguni is a governance, politics, and development specialist and prolific political analyst specialising in Africa and international relations, as well as a PhD intern at the University of KwaZulu-Natal. He currently serves as the Head of Policy and Research at the Rivonia Circle. His work includes a current affairs analytical show on eNCA dubbed On the Spot with Lukhona Mnguni.

• Prof Dipane Hlalele is a Professor of Education and a C2 NRF-rated researcher. He is a highly rated scholar in inclusive education, critical pedagogy, and educational psychology at the University of KwaZulu-Natal. Prior to joining UKZN as an associate professor in 2017, he was an assistant dean and senior lecturer at the UFS, a college of education lecturer, and a high school deputy principal and teacher. 

To RSVP please click here on or before 19 September 2022.

News Archive

Water erosion research help determine future of dams
2017-03-07

Description: Dr Jay le Roux Tags: Dr Jay le Roux

Dr Jay le Roux, one of 31 new NRF-rated
researchers at the University of the Free State,
aims for a higher rating from the NRF.
Photo: Rulanzen Martin

“This rating will motivate me to do more research, to improve outcomes, and to aim for a higher C-rating.” This was the response of Dr Jay le Roux, who was recently graded as an Y2-rated researcher by the National Research Foundation (NRF).

Dr Le Roux, senior lecturer in the Department of Geography at the University of the Free State (UFS), is one of 31 new NRF-rated researchers at the UFS. “This grading will make it possible to focus on more specific research during field research and to come in contact with other experts. Researchers are graded on their potential or contribution in their respective fields,” he said.

Research assess different techniques
His research on water erosion risk in South Africa (SA) is a methodological framework with three hierarchal levels presented. It was done in collaboration with the University of Pretoria (UP), Water Research Commission, Department of Agriculture, Forestry and Fisheries, and recently Rhodes University and the Department of Environmental Affairs. Dr Le Roux was registered for 5 years at UP, while working full-time for the Agricultural Research Council – Institute for Soil, Climate and Water (ARC-ISCW).

Water erosion risk assessment in South Africa: towards a methodological framework
, illustrates the most feasible erosion assessment techniques and input datasets that can be used to map water erosion features in SA. It also emphasises the simplicity required for application at a regional scale, with proper incorporation of the most important erosion-causal factors.

The main feature that distinguishes this approach from previous studies is the fact that this study interprets erosion features as individual sediment sources. Modelling the sediment yield contribution from gully erosion (also known as dongas) with emphasis on connectivity and sediment transport, can be considered as an important step towards the assessment of sediment produce at regional scale. 
 
Dams a pivotal element in river networks

Soil is an important, but limited natural resource in SA. Soil erosion not only involves loss of fertile topsoil and reduction of soil productivity, but is also coupled with serious off-site impacts related to increased mobilisation of sediment and delivery to rivers.

The siltation of dams is a big problem in SA, especially dams that are located in eroded catchment areas. Dr Le Roux recently developed a model to assess sediment yield contribution from gully erosion at a large catchment scale. “The Mzimvubu River Catchment is the only large river network in SA on record without a dam.” The flow and sediment yield in the catchment made it possible to estimate dam life expectancies on between 43 and 55 years for future dams in the area.
 
Future model to assess soil erosion
“I plan to finalise a soil erosion model that will determine the sediment yield of gully erosion on a bigger scale.” It will be useful to determine the lifespan of dams where gully erosion is a big problem. Two of his PhD students are currently working on project proposals to assess soil erosion with the help of remote sensing techniques.

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