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Soil and water conservation effects on soil properties in the Middle Silluh Valley,northern Ethiopia

International Soil and Water Conservation Research 2017年第3期5卷 231-240页

作者： Solomon Hishe James Lyimo Woldeamlak Bewket Department of Geography and Environmental Studies Mekelle UniversityMekelleEthiopia Institute of Resources Assessment University of Dar es SalaamTanzania Department of Geography and Environmental Studies Addis Ababa UniversityAddis AbabaEthiopia

Community-based Soil and Water Conservation(SWC)practices have been adopted in the Tigray region since 1991 for restoration of the degraded *** effects of those conservation measures on physico-chemical properties of soil were limitedly ***,this study evaluated the effects of SWC on selected soil properties in the Middle Silluh Valley,Tigray region,Northern *** study considered conserved landscapes(terraced hillside,terraced farmland and exclosure area)and non-conserved landscapes(non-terraced hillside,non-terraced farmland and open grazing land)for comparison using a one-way analysis of variance(ANOVA).A total of 24 samples were collected from each landscape at a depth of 10–30 *** results indicated that mean bulk density(BD)was low on terraced hillside,non-terraced hillside and exclosure *** and clay content were significantly different at P<0.05 for the six landscape *** mean organic matter was observed in the conserved landscape,as compared with the corresponding non-conserved ***'s correlation between Soil Organic Matter(SOM)and clay content,SOM and Total Nitrogen(TN)showed strong positive ***,the results show that SWC had significantly positive effects on soil's physical and chemical properties in the study area.

关键词： Land degradation Soil and water conservation Soil properties Middle Silluh Valley Ethiopia

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