Spatial variability of soil solute and saturated hydraulic conductivity affected by undrained water table conditions

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dc.contributor.authorAkis, Rifat
dc.date.accessioned2024-09-18T19:54:23Z
dc.date.available2024-09-18T19:54:23Z
dc.date.issued2015
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractSpatial information of soil solute and saturated hydraulic conductivity under undrained water table conditions can provide explicit knowledge to better manage soil and water than nonspatial management practices. This research was conducted to determine spatial structure of soil saturated hydraulic conductivity and salt content, as influenced by undrained water table conditions in the Amik Plain of Turkey. Using grid sampling, the General Directorate of Turkish State Hydraulic Works sampled the Amik Plain soils at approximately 1 600 locations, 254 of which were examined through undisturbed soil core sampling for land drainage evaluation. Geostatistical analyses revealed that the 30-60 and 90-120 cm soil layers had a shift in the particle size and were exposed to two different alluvial soil forming processes. Mean soil Ksat steadily decreased from 1.05 to 0.99 cm h(-1) and mean salt content increased from 0.307 to 0.335 % below the 30 to 60-cm layer. Correlation distance varied from 710 to 1 130 m for soil Ksat and 1 000-1 130 m for soil salt content for horizontal variograms. Nugget values of the models for soil Ksat ranged from 0.031 to 0.036, while the range of nugget was from 0.002 to 0.18 for soil salt content. Sill variance was the highest for Ksat (0.201) from 30 to 60 cm layer and soil salts (1.18) from 60 to 90 cm layer. Soil profile was moderately to heavily saline (1.69-7.73 dS m(-1)). For the vertical variograms, correlation distance was approximately 75 cm for soil Ksat and 136 cm for soil salt content. Results showed that an 1 130 m x 1 130 m subfield with 75 cm and/or deeper depth could be used for the layout of drain tiles. Further studies of long-term spatial variability of these properties under drained and undrained conditions with anisotropy are needed for sound surface and subsurface drainage system implementations in the Amik Plain.en_US
dc.description.sponsorshipGeneral Directorate of Turkish State Hydraulic Works (DSI); Mustafa Kemal University; Scientific Research Project Executive Office (BAP) [BAP-1002M32]en_US
dc.description.sponsorshipThis work was supported by Grant funds of General Directorate of Turkish State Hydraulic Works (DSI). Many thanks go to the Department of Soil Survey and Planning team that collected and analyzed field samples and to drainage research team working for the local branch of DSI in Hatay province of Turkey. Special thanks go to Mustafa Kemal University and its Scientific Research Project Executive Office (BAP) for funding the Project BAP-1002M32 to revise soil survey at some critically important locations in the Plain.en_US
dc.identifier.doi10.1007/s11119-014-9379-0
dc.identifier.endpage359en_US
dc.identifier.issn1385-2256
dc.identifier.issn1573-1618
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-84929085876en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage330en_US
dc.identifier.urihttps://doi.org/10.1007/s11119-014-9379-0
dc.identifier.urihttps://hdl.handle.net/20.500.12483/7707
dc.identifier.volume16en_US
dc.identifier.wosWOS:000354227200006en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofPrecision Agricultureen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAnisotropyen_US
dc.subjectAsi riveren_US
dc.subjectDrainageen_US
dc.subjectHorizontal variogramen_US
dc.subjectSalinized profileen_US
dc.subjectVertical variogramen_US
dc.subjectAmik Plainen_US
dc.titleSpatial variability of soil solute and saturated hydraulic conductivity affected by undrained water table conditionsen_US
dc.typeArticleen_US

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