1. Water Research Commission of South Africa, Lynnwood Manor, Pretoria, South Africa
2. Centre for Transformative Agricultural and Food Systems, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal (UKZN), Scottsville, Pietermaritzburg, South Africa
3. School of Environmental Sciences, University of Venda, Thohoyandou, South Africa
4. School of Engineering, University of KwaZulu-Natal (UKZN), Scottsville, Pietermaritzburg, South Africa