Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
06 April 2021 | Story Thabo Kessah | Photo Thabo Kessah
Ntebohiseng Sekhele is the Associate Guest Editor of the recent Special Issue of the African Journal of Range & Forage Science.

The Director of the Afromontane Research Unit (ARU), Dr Ralph Clark, and researcher, Ntebohiseng Sekhele, recently became part of a guest editorial team for the African Journal of Range & Forage Science. The Special Issue titled, ‘Montane rangelands in a changing world’, was published on 3 March 2021.

“I feel privileged to have been part of the team that assembled this special issue. The experience was daunting at first, as I had never been part of an editorial team before. However, with the support of the guest editors and the journal’s administrator, I was able to overcome the imposter-syndrome feeling and allowed myself to learn and enjoy the ride. My ‘aha’ moments were the critical comments from the reviewers on each paper. It was amazing to witness how this feedback would enhance the quality of an article,” said Ntebohiseng Sekhele, Geography lecturer on the Qwaqwa Campus.

Journal focus

This issue focused on the applied management of montane rangelands for production in Southern Africa and the broader world. Submissions could include original research, reviews, and meta-analyses. This has culminated in contributions that centred on the impact of policy on pastoral practices by montane communities, fire management regimes, cumulative effects of poor governance on rangeland degradation, and sustainable grazing systems – including in ecological infrastructure such as montane wetlands and communal rangeland. 

“The process took almost a year, as the first call for abstracts was made in December 2019 and final revisions of accepted papers were concluded in November 2020. There were 32 submissions with only 12 articles and one book review of Prof Rodney Moffett’s book, A Scientific Bibliography of the Drakensberg, Maloti and Adjacent Lowlands. Of the 12 contributions, nine focus on the Maloti-Drakensberg, with papers on Lesotho, KwaZulu-Natal, and the Free State,” she revealed. 

Submitted papers

“All papers advocate for the sustainable management of sensitive montane systems, which ties well with my own research that makes a contribution to the limited scholarship of natural resource-related conflicts between montane communities and their adjacent protected areas, as well as climate change impacts on natural resources,” said Sekhele, a PhD candidate through the ARU’s US-SA University Staff Development Programme (USDP). The special issue allowed for a closer link between the US and SA USDP through the involvement of Dr Kryan Kunkel – Ntebohiseng’s US co-supervisor – as one of the guest editors. 

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.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept