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ARU pioneering mountain range-expanding project

26 July 2021 | Story Nonsindiso Qwabe | Photo Nonsindiso Qwabe

ARU Read more web — On top of the Drakensberg. The ARU and Witsieshoek Mountain Lodge research team are, from the left: Grant Martin, Dr Ralph Clark, Jan van Niekerk, Prof Aliza le Roux, Prof Peter Taylor, and Dr Sandy Steenhuisen.

All mountains around the world have native and non-native species that are expanding their ranges quite dramatically; however, little research has been conducted towards understanding the long-term redistribution of species and the effects of global change on biodiversity.

The Afromontane Research Unit (ARU) on the University of the Free State Qwaqwa Campus – as part of the Mountain Invasion Research Network – has secured a two-year EU Horizon 2020 project under the Department of Science and Innovation, which will be looking at the mechanisms underlying the success and impact of range-expanding species on biodiversity and ecosystem functioning.

On Monday 19 July 2021, the ARU took a few of its researchers on a scenic helicopter ride to the summit of the Drakensberg for an alpine field-experiment site inspection of the Mont-aux-Sources peak, one of the highest sections of the Drakensberg range. This site has been identified for the project which the research unit will be leading on mountain research.

ARU Director, Dr Ralph Clark, said the project would explore the effects of global change, biological invasions (when species invade new geographic regions), as well as climate and land-use change. He said experiments were needed to explore the various possibilities and to test the extent to which species respond to experimental treatments. The project would therefore be conducting experiments for two years using open-top chambers – causing an increase in temperature of 3 or 4 degrees to what you find naturally – on plant species from lower down to the top of the mountain, to see how they function. “This will give us an idea of whether they will be able to survive in global warming scenarios. If temperatures get warmer, we might start seeing a lot of plants up here that we wouldn’t otherwise find here.”

Dr Clark said little is known about the long-term monitoring of species distribution and the effects of global change. Implementing the project in the Maloti-Drakensberg alpine area will therefore put the area in the global mountain research arena. The elevational gradient in the Maloti-Drakensberg Mountains provides space to explore the key processes underlying the variation in species elevation with climate change. “One of the things we don’t know much about are alpine systems. We are hoping to establish a long-term alpine research site and try to add as many studies as we can. The more science we can bring up here, the more we can know about mountain life. What happens on mountains has a lot of impact on social dynamics.

“This project is looking to see what is driving range expansion. Every mountain has its own context. In the Swiss alpine, fires are not a big factor, but fires are one of the biggest factors on our mountains. Some of our native and non-native species are therefore fire-driven, so as fire increases, you might have them spreading faster.”

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News Archive

UFS first to mechanise agricultural technique

2006-05-09

Small farmers from Thaba `Nchu were the biggest group attending the farmers day at the UFS Paradys experimental farm. From the left are Mr David Motlhale (a small farmer from Thaba 'Nchu), Prof Leon van Rensburg (lecturer at the UFS Department of Soil, Crop and Climate Sciences and project leader), Mr Nhlonipho Nhlabatsi (Agricultural Research Council, Glen), Ms Meisie Mthethwa (small farmer from Bloemspruit). In front is Mr Patrick Molatodi (chairperson of the Tswelopele Small Farmer Association).

Some of the participants of the farmers day at the UFS Paradys experimental farm were from the left Prof Leon van Rensburg (lecturer at the UFS Department of Soil, Crop and Climate Sciences and project leader, Mr Patrick Molatodi (chairperson of the Tswelopele Small Farmers Association) and Prof Herman van Schalkwyk (Dean: UFS Faculty of Natural and Agricultural Sciences).

UFS first tertiary institution in world to mechanise agricultural technique
The University of the Free State (UFS) is the first tertiary institution in the world to mechanise the in-field rain water harvesting technique on a commercial scale.

The technique was recently demonstrated to about 100 small farmers at the UFS Paradys experimental farm outside Bloemfontein.

“With this technique rain water is channeled to the plant and in this way food security is increased. The advantage of the technique for commercial farmers lies in the reduced cultivation of land. Small farmers will benefit from this because they can now move out into the fields and away from farming in their back yards,” says Prof Leon van Rensburg, lecturer at the UFS Department of Soil, Crop and Climate Sciences and project leader.

Rain water harvesting is an antique concept that was used by communities before the birth of Christ. In South Africa the technique is mainly used in the plots of small farmers where they make surface structures by hand.

"The technique is also used for the first time by the UFS on commercial scale by means of the cultivation of a summer crop on 100 ha at the Paradys experimental farm,” says Prof Leon van Rensburg,

Of the farmers who attended the farmers day most represented about 42 rural communities in the vicinity of Thaba ‘Nchu. A group of seven from KwaZulu-Natal also attended the proceedings. These small farmers can for example apply this technique successfully on the 250-300 ha communal land that is available in the Thaba ‘Nchu area.

The project is funded by the UFS and the National Research Foundation (NRF) and the farmers’ day was funded by the Water Research Commission.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
9 May 2006

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