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摘要:
Groundwater yield in the Kenya Rift is highly unsustainable owing to geological variability.In this study,field hydraulic characterization was performed by using geoelectric approaches.The relations between electrical-hydraulic(eh)conductivities were modeled hypothetically and calibrated empirically.Correlations were based on the stochastic models and field-scale hydraulic parameters were contingent on pore-level parameters.By considering variation in pore-size distributions over eh conduction interval,the relations were scaled-up for use at aquifer-level.Material-level electrical conductivities were determined by using Vertical Electrical Survey and hydraulic conductivities by analyzing aquifer tests of eight boreholes in the Olbanita aquifer located in Kenya rift.VES datasets were inverted by using the computer code IP2Win.The main result is that ln T=0.537(ln Fa)+3.695;the positive gradient indicating eh conduction through pore-surface networks and a proxy of weathered and clayey materials.An inverse(1/F-K)correlation is observed.Hydraulic parameters determined using such approaches may possibly contribute significantly towards sustainable yield management and planning of groundwater resources.
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篇名 Electrical-hydraulic conductivity model for a weathered-fractured aquifer system of Olbanita, Lower BaringoBasin, Kenya Rift
来源期刊 地下水科学与工程:英文版 学科 地球科学
关键词 ELECTRICAL and hydraulic CONDUCTIVITY MODEL Weathered-fractured AQUIFER system Olbanita Kenya RIFT
年,卷(期) dxskxygcywb_2019,(4) 所属期刊栏目
研究方向 页码范围 360-372
页数 13页 分类号 P64
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ELECTRICAL
and
hydraulic
CONDUCTIVITY
MODEL
Weathered-fractured
AQUIFER
system
Olbanita
Kenya
RIFT
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
地下水科学与工程:英文版
季刊
2305-7068
河北省石家庄市中华北大街268号
出版文献量(篇)
277
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0
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