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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
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

Future Leader’s Award 2017 goes to UFS Quantity Surveying student
2017-08-11

Description: Future Leader’s Award 2017 goes to UFS Quantity Surveying student Tags: Future Leader’s Award 2017 goes to UFS Quantity Surveying student 

Celebrating big achievements in the construction
sector at the recent Association of South African
Quantity Surveyors (ASAQS) conference are, from
the left: Cameron Ferreira, junior lecturer in the
UFS Department of Quantity Surveying,
Jhon Thatcher, former UFS student in the same
department who was the second runner-up for the
Gold Medal Award, Dr Stephan Ramabodu, President
of ASAQS, Gerné Bothma, former student in the
department and winner of the Future Leaders’
Award 2017, and Pierre Oosthuizen, UFS lecturer in
the same department.
Photos: Supplied


The Department of Quantity Surveying and Construction Management at the University of the Free State (UFS) made good on its promise to develop independent and critical-thinking graduates who will become leaders in their field. At the recent Association of South African Quantity Surveyors (ASAQS) conference and gala dinner, two students from the department, Gerné Botma and Jhon Thatcher, received awards for their outstanding performance.

Best of the best
Botma received the ASAQS Future Leaders’ Award (2017), an award based on academic achievement in the first three years of study. He competed with nominees from universities across South Africa offering Quantity Surveying programmes, and was the winner in this category.

Thatcher was a second runner-up for the ASAQS Gold Medal Award (being in the top three Quantity Surveying students in South Africa). This is awarded on a number of criteria, including academic achievement. Fourth-year students from all the universities in South Africa offering Quantity Surveying programmes compete for this award, and must display achievement in categories such as academia, leadership, community engagement, and general interests.  In 2016, the Gold Medal Award was won by the UFS student, Kamogelo Leeuw.

Keeping abreast of developments
Today, organisations are relying on its members to stay ahead of issues, technologies, innovations and trends. In Quantity Surveying, to keep abreast of developments in the built environment, ASAQS was established as a voluntary association, with one of its goals being advancing and promoting the science and practice of Quantity Surveying.  ASAQS works in close collaboration with its member firms, tertiary institutions, and the South African Council for Quantity Surveying Professions (SACQSP), a statutory body that oversees and regulates the profession, and accredit Quantity Surveying programmes in South Africa.

Two staff members from the UFS Department of Quantity Surveying and Construction Management, Cameron Ferreira and Pierre Oosthuizen, attended the recent ASAQS annual conference. Ferreira, a junior lecturer in the department, is the current Chapter Chairperson of the Free State for ASAQS and Oosthuizen, a lecturer in the department, is the former Chapter Chairperson.

According to Ferreira, they attended the conference to keep abreast of the latest development within the industry. “The event also served as a great networking opportunity for the UFS to build partnerships with other industry pioneers,” she said. Making use of opportunities such as these is in line with the UFS’s pursuit of lifelong learning.

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