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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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Analysis of infiltration and surface runoff in river Njoro watershed using a rainfall simulator

Analysis of infiltration and surface runoff in river Njoro w...

引用

ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress

作者： M.O.Okelo J.O.Onyando W.A.Shivoga C.M.Gichaba S.N.Miller Egerton University P.O Box 536 Njoro University of Wyoming Rangeland Ecology and Watershed ManagementDepartment 33541000 E.University AvenueLaramieWY 82071

＜正＞Introduction Land use influence on hydrology has generated interest worldwide,especially in developing countries,where forest areas have been converted to other land uses including,agriculture and *** changes in River Njoro watershed have been attributed to deforestation,intensive cultivation,and *** changes have led to increase of surface runoff and reduction of *** objective of the study was to assess the effect of land use treatment on infiltration and surface runoff using a rainfall simulator and runoff plots.

关键词： runoff plots rainfall simulator infiltration runoff

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