Abstract
A study was conducted in Dinogeng Agricultural Extension Area (DAEA) of Kgatleng District, Botswana, with the objective of assessing current soil erosion risk (using 2020 Landsat imagery) resulting from the Integrated Support Programme for Arable Agricultural Development (ISPAAD) that was launched in 2009. The Soil Loss Estimation Model for Southern Africa (SLEMSA) tool integrated with Geographical Information System (GIS) and Remote Sensing assessed the soil erosion risk in the study area. The results indicated that 88% of DAEA has low to moderate soil erosion risk (0 – 2 tha-1yr-1). Only 12% of the study area experience very high to extreme high erosion risk (5 - ≥10 tha-1yr-1) along the streams, at steep slopes and areas of bare land. Common practice calls for conservation measures to be applied on areas with high soil loss. This study has underscored the role of topography and soil erodibility, as natural factors, in driving soil erosion.
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