In well-maintained veld, the opportunity to significantly increase soil carbon is quite limited, as these ecosystems are already balanced, making substantial gains unlikely, says production scientist Dr Justin du Toit.
Conversely, he adds, degraded lands, which have reduced soil carbon levels, present a valuable opportunity for restoration. This is particularly true in areas with spekboom, a plant known for its carbon sequestration potential. However, achieving noticeable results in these regions can take decades, and the effectiveness of restoration efforts can vary greatly.
In arid and semi-arid regions, soil carbon is prone to decomposition due to the cycles of wet and dry periods, making it difficult to establish a stable, long-term increase in soil carbon. Severe droughts can also undermine any progress made in these systems, explains Du Toit.
BE WARY…