尼日利亚希罗罗大坝上游选定流域管理策略对减沙影响的建模

A. G. Adeogun, H. Ganiyu, Abraham Babajide Okunade, O. Amoo
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引用次数: 1

摘要

本研究利用了一个与地理信息系统(GIS)接口的调节水文模型——土壤和水评估工具(SWAT),研究了所选流域管理策略对尼日利亚Shiroro大坝上游减沙的有效性。对选定的管理方法进行了建模,同时使用观测到的流量数据对模型进行了校准和验证。研究结果表明,在校准和验证期间存在良好的相关性。在流域内重新造林、植被过滤带和石堤的应用分别减少了27%、39%和15%的沉积物产生。因此,本研究中描述的沉积物管理情景是相当可持续和有效的。
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MODELLING THE IMPACTS OF SELECTED WATERSHED MANAGEMENT STRATEGIES ON SEDIMENT REDUCTION UPSTREAM OF SHIRORO DAM, NIGERIA
This research utilized a regulated hydrological model, Soil and Water Assessment Tool (SWAT) interfaced with Geographical Information System (GIS), in studying the effectiveness of the chosen watershed management strategies on sediment reduction upstream of Shiroro dam, Nigeria. Selected management approaches were modelled while calibration and validation of the model were achieved using observed streamflow data. Findings indicated a good correlation during calibration and validation period. Application of reforestation, vegetative filter strips and stone bunds in the watershed reduces sediment production by 27 %, 39 %, and 15 % respectively. Thus, the sediment management scenarios depicted within this research are considerably sustainable and effective.
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21
审稿时长
6 weeks
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