Soil Erosion Prediction Using Morgan-Morgan-Finney Model in a GIS Environment in Northern Ethiopia Catchment

作者: Gebreyesus Brhane Tesfahunegn , Lulseged Tamene , Paul L. G. Vlek

DOI: 10.1155/2014/468751

关键词:

摘要: Even though scientific information on spatial distribution of hydrophysical parameters is critical for understanding erosion processes and designing suitable technologies, little known in Geographical Information System (GIS) application developing data inputs their Morgan-Morgan-Finney (MMF) model. This study was aimed to derive apply them the model estimating soil Mai-Negus catchment, northern Ethiopia. Major input include climate, topography, land use, data. demonstrated using MMF that rate detachment varied from 170 t ha−1 y−1, whereas transport capacity overland flow (TC) ranged 5 t ha−1 y−1 >42 t ha−1 y−1. The average loss estimated by TC at catchment level 26 t ha−1 In most parts (>80%), predicted rates higher than maximum tolerable (18 t ha−1 y−1) Hence, introducing appropriate interventions based severity crucial sustainable natural resources management.

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