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UFS postdoc brings ecological balance and sustainable living practices for the City of Tshwane

16 May 2024 | Story Leonie Bolleurs | Photo supplied

Dr Yolandi Schoeman believes the project is directly contributing to the regeneration and conservation of biodiversity, innovating towards creating unique urban biodiversity markets, and creating a thriving natural habitat that supports ecological balance and resilience.

Tim Briercliffe, Secretary General of the International Association of Horticultural Producers (AIPH), recently congratulated the City of Tshwane for the work done on urban greening and nature-based solutions that resulted in its entry: ‘Republic of South Africa City of Tshwane Pretoria East Urban Biosphere Reserve’ being selected as one of 21 finalists in the Living Green for Biodiversity category of the AIPH World Green City Awards 2024.

The list of finalists comprises the three highest-scoring entries in each of the seven categories. The Tshwane project was entered in the Living Green for Biodiversity and Urban Ecosystem Restoration category as well as the Living Green for Urban Infrastructure and Liveability category.

Dr Yolandi Schoeman, Postdoctoral Fellow/Researcher in Ecological Engineering in the centres for Mineral Biogeochemistry and Environmental Management and the Ecological Engineering Institute of Africa at the University of the Free State (UFS), played a critical role in conceptualising and driving the bio-intelligent approach that is integral to the Tshwane SA Biosphere Reserve project.

She states that being part of a project recognised as a finalist for such a prestigious global award is profoundly gratifying. “It underscores the importance and urgency of our work in ecological engineering and biodiversity conservation, validating our efforts to create resilient urban ecosystems that can inspire similar initiatives globally.”

Enhancing urban sustainability

According to her, it is one of the university’s flagship projects in Gauteng. “Our team was pivotal in developing the methodological framework that facilitated the integration of ecological, economic, social, and technological dimensions to effectively address climate change, biodiversity loss, disconnections in coupled human and natural systems, and enhance urban sustainability.”

Dr Schoeman says the project was initiated in the early stages of their investigations into sustainable urban development, with notable developments in 2023, as highlighted during the City of Tshwane Climate Change and Research Conference. She indicates that the project is continuing, with phases that include various baseline research activities, active ecosystem regeneration, continuous monitoring, roll-out of a unique biodiversity citizen science approach, integrated and inclusive stakeholder involvement, creating a unique urban biodiversity market, awareness and capacity building, and moving towards formally applying to the International Union for Conservation of Nature (IUCN) for the formal recognition of the urban biosphere region within the greater Pretoria East area.

She remarks that her inspiration to engage in this project stemmed from a commitment to address the multifaceted challenges posed by climate change and biodiversity loss, particularly in urban settings. “The most remarkable aspect of the project is its innovative approach to integrating urban development with ecological engineering, fostering a sustainable coexistence between humans and nature that serves as a model for cities worldwide,” she says.

She is excited about the impact of the work that has been done. Not only is the project directly contributing to the regeneration and conservation of biodiversity, creating a thriving natural habitat that supports ecological balance and resilience, but it is also impacting the greater Tshwane community. Dr Schoeman believes that the project significantly enhances community engagement and participation, which in turn fosters greater awareness and responsibility towards sustainable living practices.

Crafting practical, impactful solutions

Besides her instrumental role in making an impact, Dr Schoeman also enjoyed the project, particularly the opportunity to collaborate with a diverse group of stakeholders, including local communities, government bodies, and fellow researchers. “This multidisciplinary collaboration has not only enriched the project but has also been instrumental in crafting practical, impactful solutions tailored to the specific needs and characteristics of Tshwane,” she comments.

As a finalist in the Living Green for Biodiversity category of the AIPH World Green City Awards 2024, the city of Tshwane will receive a Highly Commended certificate at an awards ceremony in September in Utrecht, the Netherlands, and will ultimately have the opportunity to win the title of Grand Winner of the 2024 edition of the AIPH World Green City Awards.

News Archive

Childhood obesity should be curbed early

2017-03-15

Description: Child obesity Tags: Child obesity

Serious intervention by parents is required to deal
with childhood obesity. Prof Louise van den Berg and
a group of final-year PhD students worked on a study
about the prevalence of obesity in six-year-olds in
South Africa.
Photo: Supplied

If your child is overweight when they start school at the age of six, unless you do something about it at that point, the indications are they are going to be overweight teenagers and obese adults. This is according to University of the Free State’s Prof Louise van den Berg.

Evidence has shown that overweight children and teenagers have a greater risk of developing lifestyle diseases such as type 2 diabetes, hypertension and cardiovascular disease later in life, and dying prematurely.

Obesity is a global pandemic rapidly spreading among adults and children, in developed and developing countries alike.

Dr Van den Berg worked with Keagan Di Ascenzo, Maryke Ferreira, Monja-Marie Kok, Anneke Lauwrens, all PhD students with the Department of Nutrition and Dietetics, to conduct the study. Their research found that children who are overweight by the time they turn six should be screened for weight problems.

Why six-year-olds?
Children who are overweight between the ages of two and five are five times more likely to be overweight when they are 12. There are two periods in a normal life cycle when the body makes new fat cells. The first is in the uterus and the second is around the age of six. The second phase lasts from the age of six to puberty.

The study assessed the prevalence of obesity in six-year-olds as part of a campaign in South Africa to raise awareness of the problem among parents and educators.

A total of 99 children were chosen from seven schools in Mangaung, the capital city of Free State. The schools were chosen from quintile four and five schools, which when measured by their own resources and economic circumstances, are well resourced and serve largely middle-class and wealthy communities.

The children’s weight, height and waist circumference were measured and used to calculate a body mass index score and waist-to-height ratio. Both these figures are good predictors for future lifestyle disease risks such as type 2 diabetes, hypertension and cardiovascular disease. A person with a good waist-to-height ratio can wrap a piece of string equal to their height around their waist at least twice.

When the children had a higher body mass index, they also had an increased waist to height ratio. The study found one in four children from the schools surveyed were overweight when they started primary school.

Nipping the fat in the bud
Although there are many factors that play a role in preventing childhood obesity, parents’ perceptions of their children’s weight play an important role. A recent study found that more than 50% of parents underestimate the weight of their obese children. These parents remain unaware of the risks their children face and are not motivated to take any action.

At least half of the parents whose children are overweight struggle to recognise their children’s weight problems fearing that they will be labelled or stigmatised. By the time they turn six overweight children should be referred to dieticians and nutritionists who are qualified to guide their parents in getting them to eat well and be more physically active at pre-primary and primary school.

The high prevalence of weight problems among six-year-olds found in this study is an urgent call to healthcare professionals to step up and empower parents, educators and children with the necessary skills for healthy dietary practices and adequate physical activity.

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