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03 August 2020 | Story Nitha Ramnath | Photo Supplied
Prof Ivan Turok.

The University of the Free State is pleased to announce that the Human Sciences Research Council’s (HSRC) Prof Ivan Turok has been awarded a research chair by the South African Research Chairs Initiative (SARChI). Prof Turok is one of South Africa’s most cited social scientists. He will hold the Research Chair in City-Region Economies in the Department of Economics and Finance and the Centre for Development Support at the UFS. The UFS is now home to six SARChI chairs.  

The research chair is the first partnership of its kind between a South African university and the HSRC. The chair will seek to understand how cities can accelerate economic growth and inclusive development in SA. It will analyse why some cities are more successful than others, and what policies and practices can improve conditions for citizens and communities. It will also provide funding to increase research capacity through the appointment of postdoctoral, PhD, and master’s students.

SARChI is a government intervention aimed at strengthening the scientific research and innovation capacity of South African universities. It was established by the Department of Science and Technology in 2006 and is managed by the National Research Foundation (NRF). According to the NRF, its prestigious research chair is awarded to established researchers who are recognised internationally for their research contributions.  

“Prof Turok’s appointment as Research Chair is a great honour for the university. He is a highly rated researcher and his knowledge of city-region economies will be of exceptional value to the university’s research portfolio, as well as to the country’s agenda of transforming urban areas. Our country is in dire need of research in this area, in which Prof Turok will be playing a significant role,” said Prof Francis Petersen, Rector and Vice-Chancellor of the UFS. 

According to Prof Lochner Marais, Head of the UFS Centre for Development Support, the research chair will have four main themes: The Urban System – Demographics and Economics; Economic Sectors in Space; Dynamic Places; and Strategic Urban Assets. The chair brings together research from the Departments of Economics and Finance, Urban and Regional Planning, and the Centre for Development Support. The long-term goal is to develop the chair into a centre of excellence.

“The chair is co-funded by the South African Cities Network. All research will speak directly to the South African Cities Network’s agenda of transforming urban areas in the country,” Prof Marais adds.

In congratulating Prof Turok, the CEO of the Human Sciences Research Council, Prof Crain Soudien, said, “It is fitting that this research chair has been awarded to Prof Turok.  It is a culmination of many years of work in the area of city regions through which he has earned a sterling reputation as a scholar in this area of work.”

Prof Turok has authored more than 150 peer-reviewed publications and 11 books/monographs. He holds an NRF B1-rating and is the former Editor-in-Chief of the top international journal, Regional Studies. He is currently Executive Director: Economic Performance and Development at the Human Sciences Research Council and was Chairman of the Durban City Planning Commission. He was formerly Professor of Urban Economic Development, and Director of Research: Department of Urban Studies at the University of Glasgow. Prof Turok was also a Mellon Fellow at the University of Cape Town and Professor of Urban and Regional Planning at the University of Strathclyde. He is an occasional adviser to the United Nations, OECD, African Development Bank, UNECA, and several national governments. His recent books include Transitions in Regional Economic Development (2018, Routledge), Value Chains in Sub-Saharan Africa (2019, Springer), and Restoring the Core: Central City Decline and Transformation in the South (2020, Elsevier). He has a PhD in Economics from the University of Reading.

News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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