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Evidence on effects of soil physic chemical properties under different soil water conservation practices and slope gradient is important for sustainable land resource management. However, the effects of soil water conservation practices and slope gradient on soil fertility has not been assessed as such.in the study area. This study was conducted in Hawker water shed northwest Ethiopia to investigate the effects of soil physic chemical properties under different soil water conservation practices and slope gradient. Two soil water conservation namely stone bound and beach terrace and three slope gradient (top, middle and bottom slope position) to determine soil physic chemical properties. A total of 36 composite soil samples were collected at two conservation structure and three slope positions. You empirical data obtained from the soil result revealed that soil and water conservation and slope gradient effect on selected soil physic chemical properties in the study water shed site. Soil texture (sand, silt and clay),bulk density ,moisture content ,soil pH ,organic carbon, total nitrogen, available phosphorus, action exchange capacity and electrical conductivity were significantly (p<0.05) affected by both soil water conservation practices and slope gradients. Thus soil water conservation and slope gradient had shown great effect on soil properties. The highest clay (37.67-24.78%), moisture content (8.15-7.12%), soil pH (5.32-4.24), organic carbon (1.62-0.96%),total nitrogen (0.24-0.08%),available phosphorus(3.02 2.58ppm), action exchange capacity (17.48-12.34cmolcg-1) and electrical conductivity(0.13 0.06ds/m)whereas the lowest sand and bulk density were observed under the treated stone bound. Conversely, the lowest observed under untreated bench trace from soil and water conservation practices. In case of slope gradient, the highest clay, moisture content, pH (5.33-4.10), organic carbon(1.72-1%), total nitrogen(0.27-0.12%), available phosphorus(2.99-2.65ppm), action exchange capacity (16.78-12.15cmolcg-1) and electrical conductivity(0.12-0.06ds/m) in addition to the lowest sand and bulk density were recorded in the bottom slope however the lowest under on the top slope position. In the study water shed UN conserved structure and bottom slope position have a negative effect on soil physic chemical properties. Therefore, implementing appropriate soil water conservation practices to manage physic chemical properties of soil sis important in the watershed |
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