Semi- or fully automatic drainage regulation as a mean to recharge groundwater
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
17.04.2024
Typ der Arbeit
Studiengang
Sammlung
Typ
06 - Präsentation
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Themenheft
DOI der Originalpublikation
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Reihennummer
Jahrgang / Band
Ausgabe / Nummer
Seiten / Dauer
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Verlag / Herausgebende Institution
Verlagsort / Veranstaltungsort
Wien
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Climatic change is decreasing water availability, all over the world. Regions which never faced water scarcity need to adapt their practises to face more frequent and severe droughts periods. Among others, agriculture is one of the sectors that will face the consequences of water scarcity. Indeed, while water availability decreases, the use of water for irrigation purposes becomes questionable. In many regions in Europe, cultivated areas have a sub-surface drainage system, which ensures that crops do not face water stress due to excessive soil water content. These drainage systems convey the water infiltrating during rainfall events to surface channels, reducing the natural water table recharge. Introducing drainage regulations units in existing drainage systems represent a mean to increase the soil water retention and, consequently, a mean to increase the natural water table recharge while decreasing the need of irrigation and while helping to reduce peak flow during intense rainfall events. Moreover, controlled drainage management can reduce the amount of Nitrogen and Plant Protection Products (PPP) discharged into surface waters. Given its environmental benefits, drainage water management is today an official conservation practice in the USA and the Conservation Practice Standard 554 (code 554) has been published by the United States Department of Agriculture to inform, advice and guide potential users of this practise. Drainage control units can be simple structures retrofitted in existing drainage networks outlets. They can consist of sliding weir systems or of a flashboard with adjustable height and they can be operated manually or automatically. In the present study an automatic drainage control unit has been developed and operated in a laboratory prototype. The objective of our experiment was understanding which technical and practical difficulties are faced in the use of a drainage control unit and thus which issues hinder its spread among farmers. Particular attention was given to possible issues associated with sedimentation.
Schlagwörter
Drainagesystem, Drainage, Agriculture, Physical modelling
Fachgebiet (DDC)
624 - Ingenieurbau und Umwelttechnik
Veranstaltung
EGU General Assembly 2024
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
14.04.2024
Enddatum der Konferenz
19.04.2024
Datum der letzten Prüfung
ISBN
ISSN
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Begutachtung
Keine Begutachtung
Open Access-Status
Lizenz
Zitation
VENULEO, Sara, Silas UNRAU, Philipp STAUFER und Henning LEBRENZ, 2024. Semi- or fully automatic drainage regulation as a mean to recharge groundwater. EGU General Assembly 2024. Wien. 17 April 2024. Verfügbar unter: https://doi.org/10.26041/fhnw-9228