Soil Erosion Responses to CMIP6 Climate Scenarios and Land Cover Changes in the Gidabo Watershed, Ethiopia: Implications for Sustainable Watershed Management

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

ABSTRACT Soil erosion, driven by climate and land cover changes, poses a significant challenge to watershed sustainability. This study assessed historical projected soil erosion in Ethiopia's Gidabo Watershed using data from an ensemble of six GCMs Landsat images (2003, 2011, 2019), which were classified predicted integrating the Random Forest classifier Google Earth Engine, InVEST‐SDR model evaluate potential. Historical future change projections revealed trend increasing agricultural built‐up areas, while dense vegetation exhibited declining trend. The average annual precipitation baseline scenario showed insignificant decreasing trend, whereas indicated overall increase. was for both periods CMIP6 (SSP2‐4.5 SSP5‐8.5) with maps. results that mean loss increased 18.74 t ha −1 yr during period 22.75 2030s 24.76 2050s under SSP2‐4.5. Under SSP5‐8.5, rates reached 23.12 25.42 2050s. increase expansion, reduced cover, high rainfall erosivity. High concentrated southwestern northeastern sub‐watersheds, requiring immediate conservation interventions severely eroded areas. Reforestation, terracing, sustainable management are essential mitigate enhance resilience, providing key insights targeted strategies management.

Language: Английский

Empirically based modeling of soil loss and sedimentation of Shewa Robit watershed, Awash River Basin, Ethiopia

Journal of Sedimentary Environments, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Language: Английский