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Throughout the human history floods have been an integral part of the civilization. Still men have not quite coped well to live with floods. Flood hazards result from a combination of physical exposur...
Soil erosion is one of the most important environmental problems, and it remains a major threat to the land use of mountainous environment. Runoff from eroding mountainous landscapes contains sediment...
Historical sources indicate that an equivalent of 35 % of Ethiopias land area had once been covered by natural high forests. At present, no reliable information on the extend and the location of th...
A wetland is an area where the soil is saturated with moisture either permanently or seasonally. Wetlands are considered the most biologically diverse of all ecosystems, a repository of various specie...

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