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

21 April 2023 | Story Leonie Bolleurs | Photo Supplied

Striving to make a difference in the field of biodiversity conservation, Dr Katlego Mashiane decided to pursue a PhD in Geography, focusing on the spatial modelling of grassland diversity and nutrients in subalpine environments. He received his PhD during the recent April graduation ceremonies on the Qwaqwa Campus.

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

Always good to be honoured at home, says Justice Richard Goldstone

2012-02-06

Justice Richard Goldstone received an honorary doctorate from the university on 3 February 2012.
Photo: Duard Grobbelaar

Dumela article (pdf document)
Justice Richard Goldstone's - acceptance speech (pdf document)
Mail & Guardian article (pdf document)

The University of the Free State (UFS) is determined to make a success of its academic and human projects, and is not prepared to compromise on standards in the process.

This was the message of Prof. Jonathan Jansen, Vice-Chancellor and Rector, at our universities official opening on Friday 3 February 2012. These projects, said Prof. Jansen, are the foundation of the institution.

The official opening coincided with an honorary doctorate in Law conferred on Justice Richard Goldstone.

The UFS has enrolled the “smartest and most diverse class since 1904,” Prof. Jansen said.
Top learners with six A’s, and more learners from top schools inside and outside South Africa, have made the UFS their university of choice. “We are determined that the best students must study at Kovsies.”

Prof. Jansen also referred to learners in the school system who sit and wait while teachers fight amongst themselves at the education departments. “What are we going to do with those students?” The UFS provides an opportunity for these students to enter higher education with its University Preparation Programme on its South Campus in Bloemfontein. “The fastest growth at our university is on this campus. It is set aside for children who cannot be taken up in the mainstream.”

Some of the students who were part of this programme are doctors, lawyers and teachers today.

“We set a high standard in our academic project to make sure our students are the best available.”

In its Schools Project, the UFS has 23 schools under its wing and the net is broadening. Pass rates in these schools improved dramatically; in some from 13% to 100% in one year.

The human project sets standards for good behaviour. “I was astounded to see how young people get together to find other people as human beings,” Jansen said. “I have enormous hope for this country.

Some of the other projects he mentioned were the provision of more space for students to study, a refocus on the Qwaqwa Campus in the Eastern Free State, the placement of new academics, and agreements with universities abroad on the placement of young scholars.

After receiving his honorary doctorate, Justice Goldstone congratulated the university on the fact that transformation did not lead to standards being compromised.

“The university now takes its place as a leading university on our continent. The leaders of the university can hold their heads up high about their achievements.”

Judge Goldstone, the bearer of 26 honorary doctorates from various countries around the world, said: “It is always good to be honored at home”.

The official opening was attended by staff, students, guests and community leaders.

Media Release
3 February 2012
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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