A decision support system that considers risk and site specificity in the assessment of irrigation water quality (IrrigWQ)

dc.contributor.authorDu Plessis, H.M.
dc.contributor.authorAnnandale, John George
dc.contributor.authorBenad, Nico
dc.contributor.emailjohn.annandale@up.ac.zaen_US
dc.date.accessioned2024-03-08T09:35:59Z
dc.date.available2024-03-08T09:35:59Z
dc.date.issued2023-11-23
dc.descriptionDATA AVAILABILITY STATEMENT : IrrigWQ was developed using the open-source Lazarus Platform (http: //www.lazarus-ide.org, accessed on 6 September 2023), with Firebird (https://firebirdsql.org/en/ firebird-4-0-1/, accessed on 6 September 2023) used as the database. The algorithms used in the calculation procedures were based on published data, as cited in this paper. There are no measured data linked to this paper—only scenario simulations. The software described in this paper is downloadable free of charge from https://nbsystems.co.za, accessed on 6 September 2023.en_US
dc.description.abstractIrrigators are increasingly challenged to maintain or even increase production using less water, sometimes of poorer quality, and often from unconventional sources. This paper describes the main features of a newly developed software-based Decision Support System (DSS), with which the fitness for use (FFU) of water for irrigation (IrrigWQ) can be assessed. The assessment considers site-specific factors, several non-traditional water constituents, and the risk of negative effects. The water balance components of a cropping system and the redistribution of solutes within a soil profile are assessed with a simplified soil water balance and chemistry model. User-friendly, colourcoded output highlights the expected effects of water constituents on soil quality, crop yield and quality, and irrigation infrastructure. Because IrrigWQ uses mainly internationally accepted cause– effect relationships to assess the effect of water quality constituents, it is expected to find universal acceptance and application among users. IrrigWQ also caters for calculating so-called Water Quality Requirements (WQRs). WQRs indicate the threshold levels of water quality constituents for irrigation at specified levels of acceptability or risk. WQRs assist water resource managers in setting site-specific maximum threshold levels of water quality constituents that can be tolerated in a water source before impacting negatively on successful irrigation.en_US
dc.description.departmentPlant Production and Soil Scienceen_US
dc.description.librarianam2024en_US
dc.description.sdgSDG-02:Zero Hungeren_US
dc.description.sdgSDG-06:Clean water and sanitationen_US
dc.description.sponsorshipThe South African Water Research Commission and the South African Department of Agriculture, Forestry, and Fisheries.en_US
dc.description.urihttps://www.mdpi.com/journal/applscien_US
dc.identifier.citationdu Plessis, H.M.; Annandale, J.G.; Benadé, N. A Decision Support System That Considers Risk and Site Specificity in the Assessment of Irrigation Water Quality (IrrigWQ). Applied Sciences 2023, 13, 12625. https://DOI.org/10.3390/app132312625.en_US
dc.identifier.issn2076-3417
dc.identifier.other10.3390/app132312625
dc.identifier.urihttp://hdl.handle.net/2263/95116
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.rights© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) licenSE.en_US
dc.subjectSoil qualityen_US
dc.subjectCrop yielden_US
dc.subjectCrop qualityen_US
dc.subjectDecision support system (DSS)en_US
dc.subjectFitness for use (FFU)en_US
dc.subjectIrrigation water quality (IrrigWQ)en_US
dc.subjectSDG-02: Zero hungeren_US
dc.subjectSDG-06: Clean water and sanitationen_US
dc.titleA decision support system that considers risk and site specificity in the assessment of irrigation water quality (IrrigWQ)en_US
dc.typeArticleen_US

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