Impact of Rainfall Variability on Groundwater Levels in Ruiru Municipality, Kenya

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dc.contributor.authorNyakundi, R.M.
dc.contributor.authorMakokha, M.
dc.contributor.authorMwangi, J.K.
dc.contributor.authorObiero, C.
dc.date.accessioned2022-07-05T11:08:36Z
dc.date.available2022-07-05T11:08:36Z
dc.date.issued2015
dc.descriptionA Research Article in the African Journal of Science, Technology, Innovation and Developmenten_US
dc.description.abstractGroundwater accounts for the largest fresh water resources in the world. However, there has been limited exploitation of this vital resource in many areas. Where groundwater resources have been utilised, they have been over-exploited, polluted, wasted and mismanaged. In Ruiru municipality, groundwater is a major component of the water supply, contributing about 70% of the water demand. Rising population numbers and industrial development have led to a high water demand, increased water scarcity and more reliance on ground water. Assessing the effect of rainfall variability on groundwater levels of boreholes in Ruiru municipality will help in assessing the sustainability of groundwater resources in the area. Groundwater levels were measured using a dipper and spatial locations of the boreholes were established and mapped using GIS. Rainfall data was collected from the Kenya Meteorological Department and the Water Resources Management Authority. The water table fluctuation method was used to estimate recharge. There was an impact of rainfall variability on groundwater levels. The results showed a decline in groundwater levels during low rainfall periods. The rainfall variability, caused by climate change, brought about prolonged droughts and low recharge in the area. Climate change should be mitigated to cap the decline in groundwater and abstraction controlled to ensure that groundwater resources are managed properly to avoid depletion.en_US
dc.identifier.citationNyakundi, R. M., Mwangi, J. K., Obiero, C., & Makokha, M. (2015). Impact of rainfall variability on groundwater levels in Ruiru municipality, Kenya. African Journal of Science, Technology, Innovation and Development, 7(5), 329-335.en_US
dc.identifier.issn2042-1338
dc.identifier.issn2042-1346
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/23850
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.subjectClimateen_US
dc.subjectGroundwateren_US
dc.subjectRainfallen_US
dc.subjectRechargeen_US
dc.subjectWater-tableen_US
dc.subjectWater-rest levelen_US
dc.titleImpact of Rainfall Variability on Groundwater Levels in Ruiru Municipality, Kenyaen_US
dc.typeArticleen_US
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