Evaluating seasonal soil water dynamics using a simple soil water balance model in northern Ghana

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cg.contributor.crpWater, Land and Ecosystems
cg.coverage.countryGhana
cg.coverage.iso3166-alpha2GH
cg.coverage.regionWestern Africa
dc.contributor.authorKadyampakeni, Davie M.en
dc.contributor.authorEllis, Timen
dc.contributor.authorSidibe, Yoroen
dc.date.accessioned2017-01-09T04:03:15Zen
dc.date.available2017-01-09T04:03:15Zen
dc.identifier.urihttps://hdl.handle.net/10568/78618
dc.titleEvaluating seasonal soil water dynamics using a simple soil water balance model in northern Ghanaen
dcterms.abstractSoil water management is critical for sustainable crop production, particularly in drought-prone environments. A range of strategies can be used to address spatial (need to improve in-situ infiltration) and temporal (need to improve water holding capacity /storage) to increase soil water availability for crop water uptake and improved yield production and productivity. This paper presents the results from field studies of rainfall and run-off monitoring in rainfed maize-based cropping systems in northern Ghana. Rainfall was measured using rain gauges and run-off was estimated using run-off pits in selected fields plots. Long-term 20-year weather data were used in simulation experiments using a deterministic water balance model to represent smallholder rainfed maize crop system. The field studies in the three regions of northern Ghana resulted in the development of regression rainfall-runoff relationships with R2 in the range 0.75 to 0.97 for fields with/without in situ. Further, estimation of size of water conservation/storage structures could be designed based on long-term rainfall-runoff relations to increase timely crop water availability and reduce spatial losses of water through surface runoff.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationKadyampakeni, Davie M.; Ellis, Tim; Sidibe, Yoro. 2016. Evaluating seasonal soil water dynamics using a simple soil water balance model in northern Ghana. Paper presented at the African Soil Science Society Conference, Ouagadougou, Burkina Faso, 8-12 February 2016. 14p.en
dcterms.extent14p.en
dcterms.issued2016
dcterms.languageen
dcterms.subjectagricultureen
dcterms.subjectsoil wateren
dcterms.subjectsoil moistureen
dcterms.subjectwater managementen
dcterms.subjectwater balanceen
dcterms.subjectwater availabilityen
dcterms.subjectwater storageen
dcterms.subjectwater requirementsen
dcterms.subjectwater conservationen
dcterms.subjectinfiltration wateren
dcterms.subjectcrop productionen
dcterms.subjectcropping systemsen
dcterms.subjectclimate changeen
dcterms.subjectrainfall-runoff relationshipsen
dcterms.subjectmonitoringen
dcterms.subjectrainfed farmingen
dcterms.subjectmaizeen
dcterms.subjectsmallholdersen
dcterms.subjectmodelsen
dcterms.typeConference Paper

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