Flood Hazard and Risk Assessment in Robe Watershed Using GIS and Remote Sensing, North Shewa Zone, Amhara Region In Ethiopia
Journal Title: IOSR Journal of Humanities and Social Science - Year 2018, Vol 23, Issue 8
Abstract
The main objective of this research was to investigate and map vulnerable and risk area of flood in Robe watershed. Moreover, it incorporated the major cause of flood; and it identified the area for rehabilitation of forest in the study area. Robe watershed is found in North Shewa Zone of Amhara Regional State in Ethiopia. The Town of Shewa Robet is also found in the lower side of Robe watershed. In this research, physical and human factors have been integrated in GIS environment. Of those, hydrologic, land use, Normalized Difference Vegetation Index (NDVI) value, soil, geology, population density, slope, and elevation data were integrated spatially. As a result, 3,281.7 hectare (ha) (11.1%) area of the watershed was highly vulnerable; 23,901.0 ha (80.9 %,) was moderately vulnerable; 1,388.6 ha (4.7%) was low vulnerable, and 980.7 ha (3.3%) was the area for which no data of flooding was identified. Land use, NDVI value and socio economic data analysis indicated that there was decreasing of forest and vegetation cover in the watershed. To minimize flood in Robe watershed, increasing vegetation cover should be done. Furthermore, the livelihood of the community should be changed from crop production and animal rearing to environmentally friend activity to generate their income in Robe watershed. To realize this activity on the ground, attitudinal change of the people and forest rehabilitation project should be done to minimize and to control flooding in the watershed particularly Shewa Robet Town.
Authors and Affiliations
Ali Gebeyehu Msc, Getinet Teshome Msc, Hailemariam Birke Phd
Keywords
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- EP ID EP419655
- DOI 10.9790/0837-2308033444.
- Views 50
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