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01 February 2018 Photo Johan Roux
Legae first-year residents welcomed on UFS South Campus

On 27 January 2018, several dozen eager first-year students and a large number of their parents crowded into the venue at the Legae residence on the South Campus of the University of the Free State (UFS). They were welcomed by Gali Malebo, the Residence Head, Prof Daniella Coetzee, the Principal of South Campus, and Prof Francis Petersen, the Rector and Vice-Chancellor of the UFS.

Prof Coetzee exhorted the students to show their seriousness about studying by giving their best and being accountable for their own learning experience. She said that she enjoyed the very positive vibe from the excited and enthusiastic students. Prof Petersen also addressed the students and advised them to make full use of the facilities made available to support and assist especially first-years.

Gali Malebo said of the occasion: “I am pleased that what we planned was so successful, and I feel blessed that both Prof Petersen and Prof Daniella [Coetzee] were present to share such beautiful moments with us. I am grateful to my team of Residence Assistants who worked very hard to make sure that everything was in order. They received several expressions of appreciation from parents for their hospitable, welcoming spirit and for making the first-years feel at home, especially for those who travelled from far.”

Prof Coetzee concluded with these words, “The UFS is a space for freedom, opportunities, and responsibilities. Use each day to reach out for knowledge. The university is a place where you are supposed to be active in seeking out the knowledge you need, a place where you are supposed to struggle and strive in order to excel. Do not give up until you have explored the limits of your intellectual ability. We expect much of you, and you should expect much of us.”

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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