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Curiosity about environmental changes drives Dr Katlego Mashiane’s PhD research

21 April 2023 | Story Leonie Bolleurs | Photo Supplied

In the small village of Ga-Mabotia about 25 km outside of Polokwane, Dr Katlego Mashiane grew up, surrounded by rocky mountains characterised by boulder outcrops, where he interacted with nature from an early age.

He recently obtained his PhD, majoring in Geography, from the University of the Free State (UFS), which was conferred on him during the April graduation ceremonies that took place on the UFS Qwaqwa Campus. The title of his dissertation is Grass nutrients estimation as an Indicator of rangeland quality using satellite remote.

Predicting the presence of biodiversity and nutrients in an area

Based on the principle that diverse grasslands tend to perform better, environmental changes threaten the resilience and services these grassland ecosystems provide. The study examined how many different types of plants and animals can be found at a particular place to enhance our understanding of the ecosystem’s value to humans, and that biodiversity loss will reduce these ecosystem services. Focusing on spatial modelling of grassland diversity, Dr Mashiane specifically investigated the influence of topography and remotely sensed satellite data on species richness and diversity in subalpine environments, and how they are affected by the availability of grass species. To determine this, he used a random forest machine-learning algorithm to find the best information in the data that could be used to estimate the levels of species richness, diversity, and nitrogen in a protected national conservation park.

His study discovered that some data types – such as the near-infrared variable and certain vegetation data (EVI and SAVI) – were especially useful for determining the number and variety of species in a certain area. With this information, scientists can create models that predict the presence of different types of biodiversity and nutrients in an area.

Playing a key role in protecting our natural assets

Equipped with this knowledge, one will be able to understand how to protect and preserve different types of biodiversity and promote the nutritional value of both plants and animals in the environment. “Land managers could use this information for conservation strategies,” states Dr Mashiane, who decided to pursue this study because he was curious about how environmental changes will affect species.

“Grasslands provide important ecosystem services underpinning human well-being, and therefore warrant our protection; I would like to play a role in protecting our natural assets and contribute to understanding our biomes, especially in the context of global change,” he says.

In the next five years, Dr Mashiane plans to pursue further research and mentor other students in his field of study.

News Archive

UFS academic discusses Dutch, Afrikaans and African languages

2006-05-22

During the colloquium presented in Belgium by the Province Antwerp were from the left Prof Pol Cuvelier (University of Antwerp), Prof Theo du Plessis (Director: Unit for Language Management at the UFS), Mr Ludo Helsen (Permanent Deputy: Province of Antwerp) and Mr Jean-Pierre Rondas (Flemish radio journalist).

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UFS academic discusses Dutch, Afrikaans and African languages at international conference

Prof Theo du Plessis, Director of the Unit for Language Management at the University of the Free State (UFS), was the main speaker at a colloquium titled “Routes: Where to now? - Een traject van het Nederlands naar het Afrikaans en de Afrikatalen”, which was recently presented by the Province Antwerp in Belgium.

The aim of the colloquium was to discuss the future cooperation in the field of language between the Province Antwerp and South Africa.

The Province Antwerp is already involved with projects in South Africa. One of these projects is the Multilingual Information Development Programme (MIDP), a partnership project between the UFS and the Free State Province that is mainly funded by the Province Antwerp.

The project has been running since 1999 and was recently in the news with the presentation of a symposium on multilingualism and exclusion on the Main Campus of the UFS. It is hoped that the Routes colloquium will indicate new stages on which can be added to the already successful cooperation in the area of language.

Prof Du Plessis’s presentation titled “Nederlands, Afrikaans en die Afrikatale – kan samewerking slaag? Die geval MIDP in die Vrystaat”, investigated the successes that have been made with the MIDP. He discussed two possible approaches to cooperation in the areas of language, that of a sentimentalistic approach against an instrumentalistic approach.

Cooperation in the first approach makes language the aim. In the second approach language is used as a means to a greater aim. According to Prof du Plessis the first approach is driven by a romantisised idea about the relation between the Flemish and Afrikaans speaking people, which may unfortunately polarise the position of Afrikaans in South Africa even further.

He argues that, given the time that we are in, the second approach will deliver more constructive results as language can among others be used for to further democracy in South Africa. This can happen by cooperation in the institutionalising of multilingualism in our society. The more languages are used in education, law and government administration, the more we can be assured a successful democracy.

The Routes colloquium was facilitated by the well-known Flemish radio journalist, Jean-Pierre Rondas. About twenty South African and Flemish language specialists took part in the colloquium. Dr Fritz Kok, outgoing chief executive officer of the ATKV took part in the opening ceremony and Dr Neville Alexander from the University of Cape Town and well-known activist for multilingualism in South Africa was also one of the main speakers.

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