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Pioneering greenhouse gas research in South African rainfed agriculture

09 February 2024 | Story EDZANI NEPHALELA | Photo SUPPLIED

Dr Jerry Dlamini, lecturer and researcher specialising in agronomy within the Department of Soil, Crop, and Climate Sciences at the University of the Free State (UFS), is at the forefront of pioneering research in this field.

Greenhouse gas emissions represent a significant global concern, driving climate change on a massive scale. This concern is particularly pronounced in rainfed agriculture, where understanding and addressing these emissions are crucial for ensuring sustainable agricultural practices.

In South Africa, rainfed agriculture is vital in food production, contributing substantially to the nation's agricultural output. However, this sector also stands as a notable contributor to greenhouse gas emissions, primarily through activities such as livestock farming, fertiliser use, and changes in land use.

Dr Jerry Dlamini, a distinguished lecturer and researcher specialising in agronomy within the Department of Soil, Crop, and Climate Sciences at the University of the Free State (UFS), is leading pioneering research in this field. His current project, @CROPGas on X, funded by the European Joint Programme (EPJ), with a budget of R22 million, focuses on investigating the impact of various conservation agriculture interventions on greenhouse gas emissions, primarily targeting nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2).

This two-year project, which commenced in December 2022 and concludes in December 2024, is a collaborative effort between European and African universities and institutions, including Rothamsted Research (UK), University College Dublin (Ireland), University of Nottingham (UK), University of Poznan (Poland), British Geological Surveys (BGS), University of Zambia (Zambia), University of Zimbabwe, and Lilongwe University of Agriculture and Natural Resources (Malawi).

Dr Dlamini’s preliminary findings from the UFS Kenilworth Experimental Farm indicate that climate-smart agriculture interventions, such as legume rotation and no-till practices, have the potential to reduce the intensity of greenhouse gas emissions, particularly highly radiative gases like N2O.

“This is a significant finding,” Dr Dlamini noted, “as N2O has a global warming potential 100 times greater than CO2 over a 100-year horizon, meaning its impact on ozone depletion persists far longer despite being emitted in smaller quantities.”

Looking ahead, Dr Dlamini advocates for increased research efforts to quantify greenhouse gas emissions from South African croplands. He emphasises the importance of field-based measurements, akin to methodologies employed by other nations, to enhance the accuracy and effectiveness of South Africa's greenhouse gas inventories submitted annually to the United Nations Framework Convention on Climate Change (UNFCCC) and to devise effective mitigation strategies.

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UFS responds to media reports about UFS101

2012-08-18

The UFS101 is a cross-disciplinary module of the University of the Free State (UFS) that encourages critical thinking and offers access to knowledge beyond the specific qualifications for which students are registered. This is a multi-disciplinary academic curriculum that includes topics in astronomy, nanotechnology, history, law, anthropology and religion.

Throughout the seven units students are taught to think broadly rather than narrowly, and critically rather than through rote-learning.

The core curriculum module raises some difficult questions about science, humanity and the universe that have occupied human beings for centuries. There is considerable effort put into the module to enable balance, respect, and independent thinking. Students are not taught what to think but are offered different perspectives on difficult issues.

“In my unit on the question ‘how should we deal with the past?’ every effort is made for students to examine the perspectives on history held by people from different communities in South Africa,” said Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS.

Students are then encouraged to speak in class, online and in tutorial groups where they are given ample opportunities to take a position and defend it not through emotion and anger, but through logic and reason.

The objective of the module is to equip students to deal with “the present past” in constructive and empathetic ways. They are also prepared to become active citizens outside the classroom and gain skills they can use anywhere in the world.

Some students find the module difficult at first, since most of them are not used to the practice of critical thinking and dealing with difficult questions from the past, the present and the future. Most students gradually come to enjoy the core curriculum module as they become accustomed to a new style of teaching and learning.

There are 700 first-year modules at the UFS. This is the only one module offered to students in English so that all students, local and international, can engage with one another directly on the subject matter discussed in the module. However, the module material is also available in Afrikaans online.It is a pity that AfriForum Jeug Kovsies did not discuss their concerns with the presenters of the module, but chose to do it through the media.

It is a pity that AfriForum Jeug Kovsies did not discuss their concerns with the presenters of the module, but chose to do it through the media.

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