Impact of Elevation Change on the Physicochemical Properties of Forest Soil in South Omo Zone, Southern Ethiopia

The assessment of the distribution soil physicochemical properties provides basic information for our understanding soils to grow crops and sustain forests grasslands. changes in along elevational gradients were studied a less accessible Sida Forest, southern Ethiopia. Hence, present study was conducted assess evaluate fertility status soil. Data on collected from five points (four each corner one center) main plot. A pit 20 cm × dug at depth 0–30 kilogram composite samples brought Wolkite Soil Testing Laboratory analysis. results revealed that show significant correlation with elevation changes. Sand had significantly negative variation elevation; it decreases as increases rate (r = −0.44 ∗ , id="M2"> P ≤ 0.001 ). However, silt nonsignificantly positive 0.20, id="M3"> < 0.079 ) elevation, while clay coefficient 0.40 id="M4"> id="M5"> OC, OM, TN, CEC, exchangeable Mg2+ they increase 0.42 id="M6"> id="M7"> ), 0.41 id="M8"> id="M9"> 0.44 id="M10"> id="M11"> 0.34 id="M12"> id="M13"> 0.002 0.27 id="M14"> id="M15"> 0.014 respectively. While BD, pH, EC, Av. P, Ca2+, K+ nonsignificant decrease −0.70 id="M16"> id="M17"> 0.134 −0.20, id="M18"> 0.075 −0.05, id="M19"> 0.683 −0.04, id="M20"> 0.701 id="M21"> 0.693 −0.053, id="M22"> This attempted provide impact soil’s properties. Given that, exhibit