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10 July 2018 Photo Supplied
USSA hockey – lots to play for
Shindré-Lee Simmons, one of the veterans in the Kovsie women’s hockey team for this year’s national student championship.


The Kovsie men’s and women’s hockey teams have positive expectations for the University Sport South Africa (USSA) national student tournament.

The USSA championships were hosted by the University of the Free State (UFS) from 2 to 6 July 2018. This year’s championships will have 45 competing teams and will thus be the biggest ever USSA hockey tournament.

For the female squad to qualify for the 2019 Varsity Sports tournament, they have to secure a spot among the top-seven teams. In order to get back into the A section, the Kovsie men’s team must win their tournament. 

The matches are scheduled to take place on the UFS Bloemfontein Campus astro fields.

The UFS women’s team, captained by Antonet Louw, is set to play on Monday at 15:35 against Nelson Mandela University (NMU); on Tuesday at 17:00 against the University of Johannesburg (UJ); and on Wednesday at 18:25 against North-West University (NWU). The play-off matches will take place on Wednesday, Thursday, and Friday.

The men’s team, with Cheslyn Neethling as captain, will play on Monday at 17:00 against the Central University of Technology; on Tuesday at 15:35 against the Tswane University of Technology; on Wednesday at 17:00 against the Vaal University of Technology; on Thursday at 18:25 against the University of KwaZulu-Natal; and on Friday at 15:35 against Rhodes University.

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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