FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W112923503> ?p ?o ?g. }

• W112923503 abstract "The erratic pattern of rainfall over the years coupled with increasing population has left no option but to cultivate more farmlands through irrigation to meet food demand. Irrigated Agriculture as essential as it is if not done with care through good practices and use of quality water can lead to soil salinization and ecological unsustainability. In Kenya a lot of irrigated lands have been abandoned after few years of cultivation due to salinization. This study was carried out to assess the salinity and sodicity in water used for irrigation in three sub catchments in the Upper Athi River Basin of Kenya. Specific objectives included determining concentrations of major salt ions in water sources, assessment of salinity and sodicity hazards or degree of restriction on use of the water sources and also the potential effect of the water sources on soil infiltration. Water samples from twenty-six (26) irrigation water sources made up of four (4) rivers, nine (9) streams, two (2) dams, two (2) ponds, two (2) water pans, five (5) shallow wells and two (2) boreholes were collected and analysed for major cations (Na+, Ca2+, Mg2+and K+) and anions (HCO3-, CO32-, Cl-, SO42- and NO3-) and also for alkalinity in the chemistry laboratory, Kenyatta University. Standard methods were used for all the laboratory analysis; pH, electrical conductivity (EC) and Temperature of water samples were measured in the field. The laboratory analysis results were analysed and used to compute irrigation water quality parameters such as Total Dissolve Salts, Sodium Adsorption Ratio and Residual Sodium Carbonate. The results were then compared with FAO (1985) irrigation water standards and classifications and NEMA (2006) standards. Temperature, pH, and alkalinity were in the ranges 21.1 - 26.1oC, 4.82 - 6.84 and 10 - 144 mg/L respectively and within FAO permissible limits for irrigation purposes. The major salt ions except CO3-, NO3- and K+ were within acceptable limits for all samples. Nitrate was high in all groundwater sources and majority of surface waters as a result farming activities in close proximity to those water sources. The high concentration of potassium in some samples is also attributed to the same. EC, SAR, RSC and both TDS’, values range from 309.43 to 895.56μS/cm, 0.29 to 1.35meq/L, -3.48 to 0.46meq/L, 198.04 to 573.16mg/L and 194.63 to 459.42mg/L respectively. Results further shows no significant variation between surface and groundwater sources in relation to TDS, EC, SAR and RSC. TDS also has a positive correlation with all the other parameters except calcium and RSC. Categorizing the water source into FAO classification in terms of its effect on soil infiltration, all the water sources have slight to moderate restriction except one which has no restriction. The study therefore recommends that, farming in close proximity (less than 20 meters) of water sources in the study area should be avoided or discouraged through the creation of buffer around them to avoid nitrate and potassium pollution; frequent and constant irrigation water monitoring should be carried out during dry seasons when irrigation is intensive; more boreholes and shallows wells should be dug and use for irrigation during the dry season; irrigators should be educated on salinity issues and appropriate management practices to overcome potential infiltration hazards and commercial farmers with large farm sizes should be encourage to construct subsurface drains to transport excess water from root zones. These approaches will protect soil and land and ensure sustainable irrigated agriculture in the sub-catchments." @default.
• W112923503 created "2016-06-24" @default.
• W112923503 creator A5071009595 @default.
• W112923503 date "2014-08-26" @default.
• W112923503 modified "2023-09-27" @default.
• W112923503 title "Assessment of salinity and sodicity of water used for irrigation in three sub-catchments in the Upper Athi River Basin, Kenya" @default.
• W112923503 cites W1534539187 @default.
• W112923503 cites W1536870293 @default.
• W112923503 cites W1542649433 @default.
• W112923503 cites W1856219842 @default.
• W112923503 cites W1875435170 @default.
• W112923503 cites W1963553090 @default.
• W112923503 cites W1974196710 @default.
• W112923503 cites W1995120125 @default.
• W112923503 cites W2014414205 @default.
• W112923503 cites W2084231185 @default.
• W112923503 cites W2108289110 @default.
• W112923503 cites W2111166928 @default.
• W112923503 cites W2115410315 @default.
• W112923503 cites W2124994836 @default.
• W112923503 cites W2167953649 @default.
• W112923503 cites W2171730830 @default.
• W112923503 cites W2472046990 @default.
• W112923503 cites W52066198 @default.
• W112923503 cites W791891861 @default.
• W112923503 cites W84654409 @default.
• W112923503 hasPublicationYear "2014" @default.
• W112923503 type Work @default.
• W112923503 sameAs 112923503 @default.
• W112923503 citedByCount "2" @default.
• W112923503 countsByYear W1129235032015 @default.
• W112923503 countsByYear W1129235032017 @default.
• W112923503 crossrefType "dissertation" @default.
• W112923503 hasAuthorship W112923503A5071009595 @default.
• W112923503 hasConcept C127313418 @default.
• W112923503 hasConcept C129513315 @default.
• W112923503 hasConcept C141650431 @default.
• W112923503 hasConcept C144024400 @default.
• W112923503 hasConcept C149923435 @default.
• W112923503 hasConcept C152453397 @default.
• W112923503 hasConcept C159390177 @default.
• W112923503 hasConcept C159750122 @default.
• W112923503 hasConcept C16704694 @default.
• W112923503 hasConcept C178790620 @default.
• W112923503 hasConcept C185592680 @default.
• W112923503 hasConcept C187320778 @default.
• W112923503 hasConcept C18903297 @default.
• W112923503 hasConcept C2776332401 @default.
• W112923503 hasConcept C2780797713 @default.
• W112923503 hasConcept C2908647359 @default.
• W112923503 hasConcept C39432304 @default.
• W112923503 hasConcept C45812177 @default.
• W112923503 hasConcept C524765639 @default.
• W112923503 hasConcept C6557445 @default.
• W112923503 hasConcept C76886044 @default.
• W112923503 hasConcept C86803240 @default.
• W112923503 hasConcept C88862950 @default.
• W112923503 hasConceptScore W112923503C127313418 @default.
• W112923503 hasConceptScore W112923503C129513315 @default.
• W112923503 hasConceptScore W112923503C141650431 @default.
• W112923503 hasConceptScore W112923503C144024400 @default.
• W112923503 hasConceptScore W112923503C149923435 @default.
• W112923503 hasConceptScore W112923503C152453397 @default.
• W112923503 hasConceptScore W112923503C159390177 @default.
• W112923503 hasConceptScore W112923503C159750122 @default.
• W112923503 hasConceptScore W112923503C16704694 @default.
• W112923503 hasConceptScore W112923503C178790620 @default.
• W112923503 hasConceptScore W112923503C185592680 @default.
• W112923503 hasConceptScore W112923503C187320778 @default.
• W112923503 hasConceptScore W112923503C18903297 @default.
• W112923503 hasConceptScore W112923503C2776332401 @default.
• W112923503 hasConceptScore W112923503C2780797713 @default.
• W112923503 hasConceptScore W112923503C2908647359 @default.
• W112923503 hasConceptScore W112923503C39432304 @default.
• W112923503 hasConceptScore W112923503C45812177 @default.
• W112923503 hasConceptScore W112923503C524765639 @default.
• W112923503 hasConceptScore W112923503C6557445 @default.
• W112923503 hasConceptScore W112923503C76886044 @default.
• W112923503 hasConceptScore W112923503C86803240 @default.
• W112923503 hasConceptScore W112923503C88862950 @default.
• W112923503 hasLocation W1129235031 @default.
• W112923503 hasOpenAccess W112923503 @default.
• W112923503 hasPrimaryLocation W1129235031 @default.
• W112923503 hasRelatedWork W2035288765 @default.
• W112923503 hasRelatedWork W2156505256 @default.
• W112923503 hasRelatedWork W2332338914 @default.
• W112923503 hasRelatedWork W2715015589 @default.
• W112923503 hasRelatedWork W276806977 @default.
• W112923503 hasRelatedWork W2769092039 @default.
• W112923503 hasRelatedWork W2771513594 @default.
• W112923503 hasRelatedWork W2791893821 @default.
• W112923503 hasRelatedWork W2895691733 @default.
• W112923503 hasRelatedWork W3011267048 @default.
• W112923503 hasRelatedWork W3030853877 @default.
• W112923503 hasRelatedWork W3084994907 @default.
• W112923503 hasRelatedWork W3094483850 @default.
• W112923503 hasRelatedWork W3094486106 @default.
• W112923503 hasRelatedWork W3145111393 @default.
• W112923503 hasRelatedWork W3168045630 @default.
• W112923503 hasRelatedWork W3197500355 @default.

• next