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16 October 2020 | Story Leonie Bolleurs | Photo Supplied
Qinisani Qwabe, one of the Mail & Guardian Top 200 Young South Africans, considers it important to always reach out and contribute to someone's life, no matter how small it may be.

Looking back at 2020, most people will not have fond memories. But for Qinisani Qwabe, a second-year PhD student in the Centre for Sustainable Agriculture, Rural Development and Extension, 2020 turned out to be a good year.

On 10 September, he heard that he was selected as one of the Mail & Guardian Top 200 Young South Africans in the education category. As if being elected as one of the prestigious group of young people is not enough, Qwabe added another feather in his cap when he was chosen as one of 21 young scientists by the Academy of Science of South Africa (ASSAf), in collaboration with the Department of Science and Innovation (DSI). 

When offered the chance to represent South Africa at a BRICS Conference in Russia, he seized the opportunity with both hands. At this virtual event, he presented a paper on a topic he cares about a lot – ecology. His paper, using a South African case study, was titled: The role of agrobiodiversity on environmental management and its impact on human ecology.

Sustainable resources

From an early age, growing up in a very isolated community called iSihuzu on the outskirts of Richards Bay, Qwabe worked hard. He not only reaped the rewards by seeing all his tuition fees paid, but he was also offered opportunities to make a difference in society. 

“I want to see a society that leads a sustainable life and values its natural resources. This is what wakes me up every morning. That is what I am working towards,” he says.

Qwabe has a registered organisation that, among others, seeks to achieve agricultural biodiversity, respect and value for local knowledge, sustainable development, as well as youth and community engagement.  

The organisation has two legs – one dealing with agricultural production and the other focusing on social entrepreneurship. “As part of this social entrepreneurship initiative, we are working with schools in the north of KwaZulu-Natal, where we do outreach programmes (e.g. donating school uniforms), and run projects driven towards sustainability,” says Qwabe.

But he believes that it is his voice on indigenous foods, together with his passion for research – complemented by community development initiatives – that contributed to his selection as one of Mail & Guardian’s top 200 Young South Africans. 

A greater vision

He is happy to be in the academia and believes that it will propel him towards his greater vision. 

“My vision for my future is to be well-known for my contributions on matters of environmental sustainability, and equally so, for community development. Parallel to my philanthropic undertakings, I envision being a leader in one of the leading organisations on environmental sustainability, such as the World Health Organisation's Food and Agricultural Organisation (FAO),” says Qwabe. 

Here he would like to focus his energies on food security, nutrition, and food safety; sustainable management and use of natural resources and forestry; and institutional capacity building for the sustained management of natural resources and increased agriculture production.

The next generation

Qwabe believes he is making an impact and building a solid foundation for the upcoming generations to build upon.  He urges the youth of South Africa to strive to make a difference. “No matter how small it might seem,” he says.

“To borrow from the American songwriter, Michael Jackson – WE are the world. And that 'WEness' denotes that each one of us has a role to play.

 

 

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Well-established root system important for sustainable production in semi-arid grasslands
2015-02-24

Plot layout where production and root studies were done
Photo: Supplied

The importance of a well-established root system for sustainable production in the semi-arid grasslands cannot be over-emphasised.

A study of Prof Hennie Snyman from the Department of Animal and Wildlife and Grassland Sciences at the University of the Free State is of the few studies in which soil-water instead of rainfall has been used to estimate above- and below-ground production of semi-arid grasslands. “In the past, plant ecological studies have concentrated largely on above-ground parts of the grassland ecosystem with less emphasis on root growth. This study is, therefore, one of the few done on root dynamics in drier areas,” said Prof Snyman.

The longevity of grass seeds in the soil seed bank is another aspect that is being investigated at present. This information could provide guidelines in grassland restoration.

“Understanding changes in the hydrological characteristics of grassland ecosystems with degradation is essential when making grassland management decisions in arid and semi-arid areas to ensure sustainable animal production. The impact of grassland degradation on productivity, root production, root/shoot ratios, and water-use efficiency has been quantified for the semi-arid grasslands over the last 35 years. Because of the great impact of sustainable management guidelines on land users, this study will be continuing for many years,” said Prof Snyman.

Water-use efficiency (WUE) is defined as the quantity of above- and/or below-ground plant produced over a given period of time per unit of water evapotranspired. Sampling is done from grassland artificially maintained in three different grassland conditions: good, moderate, and poor.

As much as 86, 89 and 94% of the roots for grasslands in good, moderate and poor conditions respectively occur at a depth of less than 300 mm. Root mass is strongly seasonal with the most active growth taking place during March and April. Root mass appears to be greater than above-ground production for these semi-arid areas, with an increase in roots in relation to above-ground production with grassland degradation. The mean monthly root/shoot ratios for grasslands in good, moderate, and poor conditions are 1.16, 1.11, and 1.37 respectively. Grassland degradation lowered above- and below-ground plant production significantly as well as water-use efficiency. The mean WUE (root production included) was 4.79, 3.54 and 2.47 kg ha -1 mm -1 for grasslands in good, moderate, and poor conditions respectively.

These water-use efficiency observations are among the few that also include root production in their calculations.

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