"Erosion by rain, frost, wind or water of the solid matter of the earth. Often implies the removal of the soil down to the bedrock. Alternatively, the removal, by natural or artificial means, of all vegetation and organic matter." (United Nations Publications, 2013) 


United Nations Publications. "Glossary of Shared Water Resources (English-Arabic): Technical, Socioeconomic and Legal Terminology." (2013). DOI: