Final Report – A feasibility study on a regenerative integrated cropping & livestock business case model as a mine closure tool and post-closure land use for differently rehabilitated land capability classes
Feasibility study on a regenerative integrated cropping & livestock business case model as a mine closure tool and post-closure land use for differently rehabilitated land capability classes
PROJECT NUMBER: E2022-2
Prepared by Prof Wayne Truter and Dr Emmanuel Cele| Enterprises University of Pretoria| October 2025
R1500,00
Description
Conducted under the Coaltech Research Organisation (2022–2025), the research evaluated differently aged, rehabilitated coal-mined lands (4–30 years post-rehabilitation) across threeMpumalanga mines, focusing on soil recovery, pasture performance, forage quality, and theeconomic feasibility of integrating livestock within rehabilitated systems. Complementaryfield trials tested integrated cropping, zero grazing and grazing pressure effects on soil,vegetation, and forage dynamics under controlled conditions.
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Laboratory testing of samples from South African collieries using two Wits self-heating indices alongside proximate and ultimate analysis, for ventilation and safety engineers assessing burning shale risk.
What this report foundTesting of 28 coal and coal-shale samples showed the coals to be more liable to spontaneous combustion than the shales, though reactive coal-shales still...
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Testing of 28 coal and coal-shale samples showed the coals to be more liable to spontaneous combustion than the shales, though reactive coal-shales still self-heat and pyrite in them speeds the process. Higher carbon, moisture, hydrogen, volatile matter and nitrogen with lower ash all raised proneness to self-heating, so proximate and ultimate analysis can serve as a screening tool.