Gebrehiwot, Solomon
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Abstract
This study analyses the relation of forest cover and stream flow on the 266 km(2) Koga watershed in a headwater of Blue Nile Basin using both observed hydrological data and community perception. The watershed declined from 16% forest cover in 1957 to 1% by 1986. The hydrological record did not reveal changes in the flow regime between 1960 and 2002 despite the reduction in forest area. This agrees with the perception of the downstream community living near the gauging station. The upstream community, however, reported both decreases in low flows and increases in high flows shortly after the forest cover was reduced. The upstream deforestation effect appeared to have been buffered by a wetland lower in the watershed. This study concludes that community perception can be a complement to observational data for better understanding how forest cover influences the flow regime.
Keywords
Blue Nile Basin; Community perception; Deforestation; Ethiopia; High flow; Low flow
Published in
AMBIO: A Journal of the Human Environment
2010, volume: 39, number: 4, pages: 284-294
Publisher: SPRINGER
SLU Authors
Bishop, Kevin
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Global goals (SDG)
UKÄ Subject classification
Environmental Sciences
Publication identifier
- DOI: https://doi.org/10.1007/s13280-010-0047-y
Permanent link to this page (URI)
https://res.slu.se/id/publ/47857