Morphometric analysis is a quantitative measurement and mathematical analysis of landforms.It plays a significant role in understanding the geohydrological characteristics of a drainage basin in relation to the terrai...Morphometric analysis is a quantitative measurement and mathematical analysis of landforms.It plays a significant role in understanding the geohydrological characteristics of a drainage basin in relation to the terrain feature and its flow patterns.It also helps to estimate the incidence of infiltration and runoff,and other related hydrological character of a watershed like erosion and sediment transport which has a strong implication for natural resource conservation.This study has attempted to quantify the morphometric characteristics of Guna-Tana watershed for proper implementation of soil and water conservation practices.ASTER (DEM) was used for extracting morphometric parameters.The watershed covers a total area of 3601.5 km2 and it has a basin length of 78.89 km.It has been tried to generate morphometric parameters which account basin drainage network,geometry,drainage texture,and relief characteristics together with hypsometric characteristics.The morphometric analysis of drainage density of the study watershed is 0.49 km/km2 which indicates the basin is highly permeable and result with better underground water storage capacity.Ruggedness number is 0.02 that implies the area is less prone to soil erosion.In addition,it has stream frequency of 0.32 and form factor 0.57 which indicates slightly elongated basin shape.Comparative analysis of its sub watersheds Gumara and Ribb was also undertaken.Therefore,practicing soil and water conservation in the watershed could enhance/strengthen the water storage capacity,prevent sediment loss and related natural resource from the watershed that rehabilitate its productivity.展开更多
In Ethiopia,soil erosion is a severe problem and a major cause of the decline of agricultural productivity.Interventions were taken by introducing soil and water conservation practices.However,the adoption of these pr...In Ethiopia,soil erosion is a severe problem and a major cause of the decline of agricultural productivity.Interventions were taken by introducing soil and water conservation practices.However,the adoption of these practices is far below the expectation.The objective of this study was to examine factors affecting adoption of introduced soil and water conservation practices in Wereillu Woreda.Mixed research methods design was employed in order to conduct this study.Questionnaire,focus group discussion,in-depth interview and field observation were used to collect data.A binary logistic regression model was employed to analyze the collected data.The analysis result showed that sex of household heads,education status of household heads,access to extension services and training were positively correlated at significantly level with the adoption of the introduced soil and water conservation practices.On the other hand,the age of household heads,off-farm activity,and distance of farmlands from homesteads influenced the adoption of introduced soil and water conservation practices negatively.The finding depicts that the identified physical,socioeconomic,and institutional factors influence the adoption of soil and water conservation so,the Woreda Rural and Agricultural Development Office and other concerned bodies should consider these influential factors to enhance farmers’adoption of introduced soil and water conservation practices and to promote agricultural productivity and environmental quality.展开更多
文摘Morphometric analysis is a quantitative measurement and mathematical analysis of landforms.It plays a significant role in understanding the geohydrological characteristics of a drainage basin in relation to the terrain feature and its flow patterns.It also helps to estimate the incidence of infiltration and runoff,and other related hydrological character of a watershed like erosion and sediment transport which has a strong implication for natural resource conservation.This study has attempted to quantify the morphometric characteristics of Guna-Tana watershed for proper implementation of soil and water conservation practices.ASTER (DEM) was used for extracting morphometric parameters.The watershed covers a total area of 3601.5 km2 and it has a basin length of 78.89 km.It has been tried to generate morphometric parameters which account basin drainage network,geometry,drainage texture,and relief characteristics together with hypsometric characteristics.The morphometric analysis of drainage density of the study watershed is 0.49 km/km2 which indicates the basin is highly permeable and result with better underground water storage capacity.Ruggedness number is 0.02 that implies the area is less prone to soil erosion.In addition,it has stream frequency of 0.32 and form factor 0.57 which indicates slightly elongated basin shape.Comparative analysis of its sub watersheds Gumara and Ribb was also undertaken.Therefore,practicing soil and water conservation in the watershed could enhance/strengthen the water storage capacity,prevent sediment loss and related natural resource from the watershed that rehabilitate its productivity.
文摘In Ethiopia,soil erosion is a severe problem and a major cause of the decline of agricultural productivity.Interventions were taken by introducing soil and water conservation practices.However,the adoption of these practices is far below the expectation.The objective of this study was to examine factors affecting adoption of introduced soil and water conservation practices in Wereillu Woreda.Mixed research methods design was employed in order to conduct this study.Questionnaire,focus group discussion,in-depth interview and field observation were used to collect data.A binary logistic regression model was employed to analyze the collected data.The analysis result showed that sex of household heads,education status of household heads,access to extension services and training were positively correlated at significantly level with the adoption of the introduced soil and water conservation practices.On the other hand,the age of household heads,off-farm activity,and distance of farmlands from homesteads influenced the adoption of introduced soil and water conservation practices negatively.The finding depicts that the identified physical,socioeconomic,and institutional factors influence the adoption of soil and water conservation so,the Woreda Rural and Agricultural Development Office and other concerned bodies should consider these influential factors to enhance farmers’adoption of introduced soil and water conservation practices and to promote agricultural productivity and environmental quality.
