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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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Pres Steyn turns pink in anticipation of Vryfees

2014-06-06

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Australian artist Cigdem Aydemir vacuum packed the Pres Steyn monument on the Bloemfontein Campus’s Red Plain – in pink. Aydemir’s project, ‘Plastic Histories’, forms part of a public art project that encourages us to evaluate public monuments in their historical context.

By vacuum packing monuments, Aydemir alludes to their significance and preservation. At the same time, though, it reveals the nature of their contentious and gendered historical function. This is because most monuments in post-colonial countries typically celebrate men’s achievements in serving their nations.

In response, this project acknowledges the contribution of women from all races, communities and sexual orientations to the grand narrative of a post-apartheid South Africa.

Aydemir is also developing an app in collaboration with Australian artist Warren Armstrong. This will be used for augmented reality viewing of three city monuments – those of President Brand, General De Wet and General Hertzog. This means that visitors will be able to hold a smart phone or iPad in front of the monuments and view the monuments as if vacuum packed in pink plastic.

In conjunction with the public art project there will be an exhibition of digitally manipulated photographs of nineteen-century and contemporary male monuments in Bloemfontein. These photos will be exhibited at the Johannes Stegmann Gallery at the UFS Sasol Library from 15 July – 1 August 2014.

Public tours on the Bloemfontein Campus and into the city will take place on:

• Tuesday 15 July at 11:00,
• Wednesday 16 July at 14:00, and
• Saturday 19 July at 11:00.

Aydemir’s ‘Plastic Histories’ public art project is part of the UFS Programme for Innovation in Artform Development (PIAD) and the Vryfees arts festival’s partnership with the Australian-based SituateArt in Festivals initiative. This partnership is managed by the Salamanca Arts Centre in Tasmania.