Macdex Mutema, and Vincent Chaplot. “Unit-Area Soil, Soil C and Nutrient Fluxes Decrease in the Downstream Direction of a River Basin: A Case of Thukela River Basin, South Africa”. Emerging Issues in Environment, Geography and Earth Science Vol. 3, Nov. 2023, pp. 176-09, doi:10.9734/bpi/eieges/v3/6387B.