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18 August 2020 | Story Leonie Bolleurs | Photo Supplied
Liezel Rudolph believes opportunities do not fall into your lap, but you cross them when you do what you love, and you do it well.

On more than one occasion, Liezel Rudolph set foot on the SA Agulhas II, travelling the oceans to Marion Island in her quest to research climate change. She focuses her research on reconstructing the past climate of Marion Island. 

As Lecturer in Process Geomorphology in the Department of Geography Rudolph is involved in research on glacial and peri-glacial landforms, trying to understand the links between climate and the processes that shape these landforms.

An interview with her reveals more about this scientist, adventurer, and teacher who sees pursuing one’s research interests and teaching others about it as a dream come true.

 

“Part of being a woman is to know when to be strong and to speak up, and when to be humble and listen.” – Liezel Rudolph

Is there a woman who inspires you, who you would like to celebrate this Women’s Month?

“I would like to celebrate my mother who does everything to the full. She celebrates the little things; she dreams big and she does not fear the future. She values discipline, but nurtures growth and has always encouraged (me) to be the best version of me and not to compare myself to others.”

What are some of the challenges you have faced in your life that have made you a better woman?

“I don’t like being criticised and I don’t like failing. It has taken me several years to learn that not all criticism is negative and that not all failures are final. And that is OK. I have learned to be easier on myself, and on others when I (or they) don’t meet certain expectations.”

What advice would you give to the 15-year-old you?

“When I was 15 years old, I had no idea what life would be after school – and it scared me. I now know that by following my passion and doing what I am good at, I am doing myself and the world a favour. There is no point in making loads of money if you hate going to work every day. Opportunities do not fall into your lap, but you cross them when you do what you love, and you do it well.”

What would you say makes you a champion woman [of the UFS]?

“I would not say that I am a champion woman, yet. But I would like to think that I am a woman who does her job well, and who does ‘woman’ well, too. This means bringing what I have to the table, and not comparing, criticising, or competing with anyone about what else is on the table. I still have to grow a lot in this regard.”

 

 

News Archive

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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