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Effect of Eucalyptus expansion on surface runoff in the central highlands of Ethiopia

Ecological Processes 2017年第1期6卷 1-8页

作者： Daniel Jaleta Boniface P.Mbilinyi Henry F.Mahoo Mulugeta Lemenih Department of Engineering Sciences and Technology Sokoine University of AgricultureP.O.Box 3003MorogoroTanzania Department of Forestry and Natural Resource Farm AfricaP.O.Box 5746Addis AbabaEthiopia

Introduction:Land use/land cover change can affect the ecological processes of an area such as hydrological *** change in the condition of water resources of an area could be a good indicator of changes in ecosystem function as a result of altered land use/land *** expansion in central Ethiopia is one of the recent land use/land cover changes causing controversy on its potential ecological *** study was designed to evaluate effects of three adjacent land uses/land covers,*** land,grassland and Eucalyptus woodlot on surface runoff in meja river watershed,central ***:The rainfall amount at each study catchment was collected using the rain gauge installed to record daily rainfall *** three land use/land cover types in each study catchment were selected for comparison as *** replications of each land use/land cover were used forming a total of 12 runoff *** rainfall and runoff data were collected twice a day for 91 ***:The study found that land use/land cover significantly affects surface runoff generated from the *** runoff was recorded from cultivated *** was no significant difference on runoff volume between grassland and Eucalyptus ***:This shows that expansion of Eucalyptus on grassland could not have significant impact on surface runoff generation but if planted on previously farmland could reduce surface runoff.

关键词： Cultivated land Grassland Runoff plots Land use meja river watershed

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