Effects of land use and sustainable land management practices on runoff and soil loss in the Upper Blue Nile basin, Ethiopia
| Autor: | Enyew Adgo, Ayele Almaw Fenta, Derege Tsegaye Meshesha, Kindiye Ebabu, Dagnachew Aklog, Dagnenet Sultan, Nigussie Haregeweyn, Mesenbet Yibeltal, Atsushi Tsunekawa, Mitsuru Tsubo, Tsugiyuki Masunaga |
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| Rok vydání: | 2019 |
| Předmět: |
Contrasting agro-ecologies
Sustainable land management Hydrology Biomass (ecology) Environmental Engineering 010504 meteorology & atmospheric sciences Land use SLM practices Drought prone Sediment Ecological succession 010501 environmental sciences 01 natural sciences Pollution Grazing Exclosure Soil erosion Environmental Chemistry Environmental science Vegetation restoration Surface runoff Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Science of The Total Environment. 648:1462-1475 |
| ISSN: | 0048-9697 |
| Popis: | Understanding the effect of land use and sustainable land management (SLM) practices on runoff and soil loss (SL) is essential for adopting suitable strategies to control soil erosion. The purpose of this study was to analyze runoff and SL from different land use types and evaluate the effectiveness of different SLM practices through monitoring runoff and sediment from 42 runoff plots (30 m × 6 m) in different agro-ecologies of the Upper Blue Nile basin of Ethiopia. Four treatments for croplands (control, soil bund, Fanya juu, and soil bund reinforced with grass) and three treatments for non-croplands (control, exclosure, and exclosure with trenches) were investigated during the rainy seasons. The results showed that runoff and SL varied greatly depending on agro-ecology, land use type, and SLM practice. Seasonal runoff ranged from 52 to 810 mm in 2015 and 37 to 898 mm in 2016, whereas SL ranged from 0.07 to 39.67 t ha−1 and 0.01 to 24.70 t ha−1. The highest rates were observed from untreated grazing land in the midland agro-ecology, largely because of heavy grazing and the occurrence of intense rain events. Runoff and SL were both significantly lower (P |
| Databáze: | OpenAIRE |
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