BDU IR

LAND USE LAND COVER CHANGE STATUS AND EFFECTS OF SLOPE PERCENTAGE ON SELECTED PHYSICO-CHEMICAL SOIL PROPERTIES IN DOQMITE WATERSHED, BAHIRDAR ZURIA DISTRICT, NORTHWEST ETHIOPIA

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dc.contributor.author Habtamu Anley Ejigu
dc.date.accessioned 2018-12-26T04:53:20Z
dc.date.available 2018-12-26T04:53:20Z
dc.date.issued 2019-01-02
dc.identifier.uri http://hdl.handle.net/123456789/9246
dc.description.abstract ABSTRACT Land degradation is a major concern in Ethiopia since it leads to declining agricultural productivity, poverty and food insecurity. Land use and land cover change (LULCC) has become a central component in current strategies for managing natural resources and monitoring environmental change. However, Land use and land cover change (LULCC) status, effects of slope percentage on selected soil physico-chemical properties has not been well studied in Doqmite watershed. Doqmite micro-watershed is located between 11⁰ 25’ 52” N to 11⁰ 26’ 59” N Latitude and 37⁰ 17’ 40” to 37⁰ 19’08” E longitude with a total area of 331 hectare in Bahir Dar zuria district North west Ethiopia. Land use Land cover change (LULCC) status was assessed by using Land sat 8 image of the year 2010 and 2017 using ERDAS and GIS mapping techniques. Soil bund has been widely implemented in the study area since 2010. Cultivated fields conserved by soil bund (SB)was compared with nonconserved land and evaluated under three slope gradients; 0-2%, 2-8% and 8-15%. A total of 18 composite soil samples were collected from the top 20 cm soil depth replicated three times. Composite soil samples were collected in ‘X’ design square plot with length of 10 m x 10 m. Moreover, 6 undisturbed soil samples were taken with a core sampler for soil bulk density determination. Effect of Slope percentage in conserved and unconserved watersheds on Selected soil Physicochemical properties of was assessed by using laboratory analysis. In addition; household survey, focus group discussions and field observations also assessed to verify the changes. The study has found that Cultivated land, natural forest and grazing land have been declined by 40,9, 36 and 0.9 hectare respectively whereas Farm village land and plantation lands were expanded and increased by 8 and 71 hectares respectively between the study years (2010 and 2017). The laboratory result showed that Av-P (P=0.003), Exchangeable K+(P=0.034) and BD (P=0.017) were significantly affected at (p≤0.05) by the slope percentage and treatments. But none was observed with OM, SOC, TN, CEC, PH. Most of the interviewees (73.4%) have positive opinion on effects of slope percentage on soil properties. In addition, 91.1% perceived that lower slope percentage land improved crop yield and their annual income covers household expenditure as compare with the steep slope land within eight years. Further research is recommended to study the magnitude of the effects and for a better understanding of sustainable land use systems. Keywords: Land use, land cover, slope percentage, conserved, None-conserved, physicochemical. soil bund en_US
dc.language.iso en_US en_US
dc.title LAND USE LAND COVER CHANGE STATUS AND EFFECTS OF SLOPE PERCENTAGE ON SELECTED PHYSICO-CHEMICAL SOIL PROPERTIES IN DOQMITE WATERSHED, BAHIRDAR ZURIA DISTRICT, NORTHWEST ETHIOPIA en_US
dc.type Thesis en_US


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