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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

UFS committed to a two-language model
2010-08-13

  Prof. Jonathan Jansen

The University of the Free State (UFS) will continue to use a two-language model while it builds capacity for research and teaching in Sotho languages.

This was announced by the Rector and Vice-Chancellor of the UFS, Prof. Jonathan Jansen, when he delivered the 29th DF Malherbe Memorial Lecture on the Main Campus in Bloemfontein yesterday, on the topic: The politics and prospects of Afrikaans, and Afrikaans schools and universities.

“In the course of time black students will learn Afrikaans, white students will learn Sesotho, and all students will learn decent English,” he said.

“Classes will remain in English and Afrikaans, especially in the first years of study. Dual-medium classrooms will break down the racial isolation where outstanding university teachers are comfortable in both languages. Parallel-medium classes will exist where large numbers enable such a facility.”

He said schools and higher education institutions that continue to use language as an instrument of exclusion, rather than inclusion, would remain “culturally and linguistically impoverished”. He said the future of Afrikaans in these institutions lay in its inter-dependence and co-existence with other languages.

“A strong two-language model of education, whether in the form of double- or parallel-medium instruction within a racially integrated campus environment is the only way in which Afrikaans can and should flourish in a democratic South Africa,” he said.

“It is the only model that resolves two problems at the same time: the demand for racial equity, on the one hand, and the demand for language recognition, on the other hand.”

He said the idea of an exclusively Afrikaans university was a “dangerous” one.

“It will lock up white students in a largely uni-racial and uni-lingual environment, given that the participation rates in higher education for Afrikaans-speaking black students are and for a long time will remain very low,” he said.

“This will be a disaster for many Afrikaans-speaking students for it will mean that the closed circles of social, cultural and linguistic socialization will remain uninterrupted from family to school to university.

“Rather than prepare students for a global world marked by language flexibility and cultural diversity, students will remain locked into a sheltered racial environment at the very stage where most South African students first experience the liberation of the intellect and the broadening of opportunities for engaging with the world around them.

“The choice at the Afrikaans universities, therefore, must never be a choice between Afrikaans and English; it must be both.”

Media Release
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell:   083 645 2454
E-mail: loaderl@ufs.ac.za
13 August 2010

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