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13 August 2018 Photo Charl Devenish
Mountain research Maloti-Drakensberg
Tucked in the foothills of the Maloti-Drakensberg Mountains is the Qwaqwa Campus of the University of the Free State (UFS), the home of the Afromontane Research Unit (ARU).

Mountains and highlands have always played an important role in the history of mankind. They produce economically essential goods and services (such as fresh water), host unique biodiversity, and offer unique recreational and tourism opportunities. Mountains are also a place for spiritual sanctuaries and are often used for journeys of self-reflection through pilgrimage.

In addition to these ‘feel good’ benefits, mountains are hazardous areas for communities and infrastructure and are vulnerable to natural disasters. Mountainous areas are also often natural borders defining geopolitical entities, but in the process splitting and marginalising communities, creating economic shadow zones and sometimes becoming highly militarised areas. 

“Southern African mountains provide enormous opportunities for holistic research as social-ecological systems, with some of the most interesting and least academically explored environments on Earth,” said Dr Vincent Clark, Director: Afromontane Research Unit (ARU) on the UFS Qwaqwa Campus

The Afromontane Research Unit
The Qwaqwa Campus of the University of the Free State (UFS) is the home of the ARU, a multidisciplinary flagship group addressing the largely under-researched mountainous landscapes of southern Africa. 

Research in the ARU is promoted around three broad themes to foster inter- and multidisciplinary discourse: (1) conservation and sustainable use of Afromontane biodiversity; (2) sustainable futures for the people of the Afromontane; and (3) living and doing business in the Afromontane –  with the intention of creating a sustainability science hub to bring the three themes into the ambit of solution-oriented transdisciplinary research, centred in the sustainable development goals and sustainability research in general. 

Continental leader
To achieve its vision of becoming a continental leader in African mountain research, the ARU is positioning itself as a mountain-knowledge generator and interchange by developing key relationships locally and internationally. The most valuable local partnership is with the South African Environmental Observation Network (SAEON), with which the ARU will be sharing a Research Chair. 

The Chair will contain strong expertise in the Social Sciences to complement the existing strong Natural Science element in both the ARU and SAEON. The Sustainability Science component is being built through inter alia a mutually-reinforcing relationship with the University of Tokyo and United Nations University, Tokyo. 

The future
“In tandem with robust collaborations to achieve its goals, the ARU provides an envious capacity-building programme for its early career campus academics, postdoctoral and postgraduate students,” said Dr Clark. 

The scale of influence of the ARU is prioritised as ‘back yard first’, namely solution-oriented research that benefits Phuthaditjhaba, Qwaqwa, Golden Gate Highlands National Park and Royal Natal National Park. Thereafter, the ARU seeks to facilitate research that encourages the sustainable development of the Maloti-Drakensberg as a unique social-ecological system in Africa, and from there facilitate research in the intellectual vacuum that is the southern African mountains. With time, the ARU aims to take the intellectual lead as an Africa-based leader in African mountain research. The success of this will depend on how carefully the development of human infrastructure can be balanced with that of the myriad opportunities presented.”

With a diverse and motivated team, situated in one of the most attractive environments in Africa, the ARU is here to change the way we think about African mountains and what they mean for us all. 

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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