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Girma Firehiywet 한국산림과학회 2023 Forest Science And Technology Vol.19 No.2
In Ethiopia, particularly in Southern Oromia and Eastern Halaba, land degradation is a common challenge for the pastoral community and farmers. As a result, the sub-watershed has closed for the past five years. However, little is known about the effects of topography on the rehabili- tation of various land uses and land covers (LULCs). This study determined how the main topo- graphic variables affect the rate of rehabilitation. Sentinel-2 images were used to quantify land use and land cover for the years 2017 and 2021. The aspect, altitude, and slope were calcu- lated using the SRTM of 1 Arc-Second Global. The Maximum Likelihood classifier algorithm was used for supervised image classification. Changes in LULCs were analyzed using the post-classi- fication technique. The LULC maps were overlaid with the topographic variabilities. The topo- graphic variability’s influences were clearly observed on the rehabilitation rate of area enclosure. In the slope class of 0 to 5%, agriculture is the dominant cover. The bushland was largely detected in the slope classes of 0 to 10 in 2017. Agriculture and barren land were influ- encedasaltitudeandslopeincreased.Forestandbushlandwerefoundtobehighlyrestored at an altitude of 1841 to 1880, an aspect of the south, and slope classes of 0 to 5 percent.