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dc.contributorStrohmeier, Stefanen_US
dc.contributorBenabdallah, Sihemen_US
dc.contributorHabaieb, Hamadien_US
dc.creatorBen Khelifa, Waliden_US
dc.identifier.citationWalid Ben Khelifa, Stefan Strohmeier, Sihem Benabdallah, Hamadi Habaieb. (7/12/2021). Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region. Arabian Journal of Geosciences, 14.en_US
dc.description.abstractIn central-northern Tunisia, a combination of dryness, erratic rainfalls, and the undulating terrain create an erosion-prone environment. Soil and water conservation (SWC) measures have been widely applied to reduce the losses of water and top-soil from agricultural fields and thereby increase crop-production and the rural communities’ livelihoods. However, the impacts of various SWC interventions are interrelated and difficult to predict. The objective of this study is to evaluate the impacts of Bench Terraces (BTs), in combination with small scale reservoirs (Hill Lakes (HLs)), on runoff and erosion using the Soil and Water Assessment Tool (SWAT) across semi-arid environments of Tunisia. Development and testing of the BT parameter set was performed using monthly surface runoff and multiple bathymetric sediment measurements obtained from the HLs of small BT-treated catchments (< 20 km2). The established Bench Terraces (BTs) parameter set was applied to the Rmel watershed (675 km2) to eventually test the parameters’ performance at the integrated landscape level. SWAT simulation using the defined BT parameter set and ‘pond’ approaches for the scattered HLs across Rmel produced a ‘good’ modelling performance indicated by NSE values of 0.89 and 0.91 during calibration and validation. A combination of BTs and HLs overall reduced runoff and sediment yield by 33% and 17% respectively. The Rmel case study demonstrates the robustness of the BT parameter-set obtained from small and quasi-homogeneous training catchments. The enhanced knowledge about SWC impacts, and its consideration in modelling (across scales), will eventually support planning and management in Tunisia’s dry and degradation-prone landscapes.en_US
dc.publisherSpringer (part of Springer Nature)en_US
dc.sourceArabian Journal of Geosciences;14,(2021)en_US
dc.subjectdry areasen_US
dc.titleModelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid regionen_US
dc.typeJournal Articleen_US
cg.creator.idStrohmeier, Stefan: 0000-0003-0723-5964en_US
cg.subject.agrovocsurface runoffen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Agronomic Institute of Tunisia - INATen_US
cg.contributor.centerWater Research and Technologies Centre - CERTE-Tunisiaen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalArabian Journal of Geosciencesen_US

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