Abstract
Soil erosion is a critical problem in Ethiopia. The rate of soil erosion at the Debre Mewi Watershed in the upper Blue Nile River basin has occurred at an alarming rate. Estimating soil erosion, identifying erosion hotspot areas and setting priorities are needed by agencies involved in development works of the watershed to plan and implement soil and water conservation measures. Therefore, this research has been carried out to assess soil erosion, identify erosion hotspots and to set priority for conservation measures. The study integrated remote sensing with a Geographic Information System (GIS). Soil, land use/land cover, topography, and climatic data were used to generate the RUSLE factor values. Soil erosion was calculated through overlay analysis, which ranged from 0.0046 to 192 tons/ha/year. About 68% of the watershed experiences from very low to moderate erosion rates, 31% experiences from high to extreme erosion rates and 1% experiences exceptional erosion rates that is greater than 100 tons/ha/year. The results were compared with conventionally collected plot level soil loss data and good agreement was found. Agricultural areas (crop lands) have very high soil erosion followed by grazing lands and bush lands. However, the soil loss is low in eucalyptus plantations and built up areas.
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References
Baban SMJ, Wan Yusof K (1999) Modeling soil erosion in tropical environments using remote sensing and geographical information systems. Department of survey and land information, The University of West Indies, St Augustine, Trinidad, West Indies
Berehe Wolde Aragay (1996) Twenty years of soil conservation in Ethiopia. A personal overview. Regional Soil Conservation Unit/SIDA, Nairobi
Desta H, Kassie M, Benin S, Pender J (2000) Land degradation in the high lands of the Amhara region and strategies for sustainable land management. ILRI, vol II.114P. ISBAN 92–9146–090–7. Nairobi, Kenya
Foster GR, Yoder DC, Weesies GA, McCool DK, McGregor KC, Bingner RL (2002) USER’S GUIDE- revised universal soil loss equation version 2 (RUSLE 2). USDA – Agricultural Research Service, Washington, DC
Ethiopian Highland Reclamation Study (EHRS) (1984) Annual Research Report 91983–1984) Ministry of Agriculture, Addis Ababa, Ethiopia
Hawando T (1995) The survey of the soil and water resources of Ethiopia. UNU, Tokyo
Herweg K, Stillhardt B (1999) The variability of soil erosion in highlands of Ethiopia and Eritrea. Average and Extreme Erosion Patterns. CDE Research Report 42, Berne
Hudson NW (1986) Soil conservation, Bats Ford Ltd., London
Hurni H (1985) Erosion – productivity – conservation system in Ethiopia. IV. International Conference on soil conservation, at Mercacy, Venezuela
Hurni H (1986) Degradation and conservation of the soil resource in the Ethiopian highlands. A Paper presented at the first international workshop on African Mountains and Highlands, Ethiopia. 19–27 Oct 1986. Agriculture, CADU Publication No.74
Hurni H (1988) Degradation and conservation of the resources in the Ethiopian highlands. Mountain Res Dev 8(2/3):123–130 University of Bern, Switzerland
Lal RE (1984) Soil erosion: research methods. St. Lucie Press, Soil and Water Conservation Society, Delray Beach, FL, Ankeny, IA
Millward AA, Mersey JE (1999) Adapting the RUSLE to model soil erosion potential in a mountainous tropical watershed. Catena 38:108–129
Morgan RPC (1995) Soil erosion and conservation. Addson – Wesley Longman, Ending burgh, 198pp
Morgan RPC (2005) Soil erosion and conservation. Blackwell Science Ltd., Oxford, 304pp, ISBN 1-4051-178-8
Renard KG, Foster GR, Weesies GA, McCool DK, Yoder DC (1997) Predicting soil erosion by water: a guide to conservation planning with the revised universal soil loss equation (RUSLE). Agriculture Handbook No. 703, US Department of Agriculture, Washington, DC
Sapkota R (2008) Modeling runoff and erosion. Namchun Watershed, Thailand
Soil Conservation Research Project (SCRP) (1986) Fourth progress report (1984) by Hurni H, M. Grunder, University of Berne and UN University in Association with the Ministry of Agriculture, Ethiopia, Series V, Anjene Research Unit (draft)
Vrieling A (2007) Mapping erosion from space. Proefschrift Met Lit.opg. Met Samenvatting in het Engles en Nederland’s
WBISPP (2000) Manual for Woody Biomass Inventory and Strategic Planning Project, Ministry of Agriculture, Addis Ababa, Ethiopia
Wischmeier WH, Smith DD (1978) Predicting rainfall erosion loss – a guide to conservation planning. Agricultural Handbook Number 537, USDA
Zeleke G (2000) Landscape dynamics and soil erosion process modeling in the North Western Highlands. GEOGRAPHICA BERNENSIA, Institute of Geography. University of Bern, Switzerland
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Mekonnen, M., Melesse, A.M. (2011). Soil Erosion Mapping and Hotspot Area Identification Using GIS and Remote Sensing in Northwest Ethiopian Highlands, Near Lake Tana. In: Melesse, A.M. (eds) Nile River Basin. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0689-7_10
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DOI: https://doi.org/10.1007/978-94-007-0689-7_10
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