0000000000113886

AUTHOR

Boutheina Douh

showing 5 related works from this author

Wetting Patterns Estimation Under Subsurface Drip Irrigation Systems for Different Discharge Rates and Soil Types

2018

Knowledge about the moisture distribution pattern shape and volume of soil wetted by an emitter is the basic need for better subsurface drip irrigation system. The dimensions of the pattern are imperative in selecting the right spacing between emitters and the suitable distance between laterals.

0106 biological sciencesSoil classificationSoil scienceDrip irrigation010501 environmental sciences01 natural sciencesPhysics::GeophysicsMoisture distributionVolume (thermodynamics)Physics::Accelerator PhysicsEnvironmental scienceWettingPhysics::Atmospheric and Oceanic Physics010606 plant biology & botany0105 earth and related environmental sciencesCommon emitter
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Assessing Hydrus-2D to Simulate Soil Water Content (SWC) and Salt Accumulation Under an SDI System: Application to a Potato Crop in a Semi-Arid Area …

2015

In this paper the suitability of the HYDRUS-2D model to simulate volumetric soil water content in the root zone of a potato crop under subsurface drip irrigation (SDI) is initially assessed on the basis of a field study. Then, considering that the crop is moderately sensitive to soil salinity, the model is tested to predict the salt distribution around a buried emitter, when two different water qualities (i.e. electrical conductivity of 1.0 and 4.0 dS m-1) are used during the growing season (treatments T1 and T2). Finally, the soil volume in which salt accumulates is distinguished by the model for the two treatments, for which the respective yields are not significantly different. The resul…

CropHydrusSoil salinityAgronomySoil waterArid areaSoil ScienceEnvironmental scienceDrip irrigationAgronomy and Crop ScienceLeaching modelTranspirationIrrigation and Drainage
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Effects of Saline and Deficit Irrigation on Soil-Plant Water Status and Potato Crop Yield under the Semiarid Climate of Tunisia

2019

Water supplies have been decreasing in several semi-arid regions, and it is therefore necessary to adopt irrigation strategies aimed at maximizing water use efficiency. In this paper, the effects of saline and deficit irrigation on water use efficiency and on potato crop response, based on observations of soil and plant water status, were investigated. Experiments were carried out in Central Tunisia, by monitoring potato crop growth during two seasons in four distinct treatments (T1&ndash

Irrigationwater use efficiency0208 environmental biotechnologyGeography Planning and DevelopmentDeficit irrigationTJ807-83002 engineering and technologyManagement Monitoring Policy and LawTD194-195Renewable energy sourcesthermal imagingSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliGE1-350Water-use efficiencyWater contentcrop water statucrop water stress indexdeficit irrigationEnvironmental effects of industries and plantsRenewable Energy Sustainability and the EnvironmentCrop yieldfungiCrop water status; Crop water stress index; Deficit irrigation; Full irrigation; Thermal imaging; Water use efficiencyIrrigation schedulingfood and beverages04 agricultural and veterinary sciencesBuilding and ConstructionSaline water020801 environmental engineeringfull irrigationEnvironmental sciencesAgronomy040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental sciencecrop water statusWater useSustainability
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Assessing Hydrus-2D model to investigate the effects of different on-farm irrigation strategies on potato crop under subsurface drip irrigation

2019

The objective of this paper was to assess the performance of Hydrus-2D model to simulate the effects of different on-farm irrigation strategies applied on potato crop. The ability of the model to simulate the stress coefficient (Ks), obtained as the ratio between actual and maximum transpiration, and to define the productive function of potato crop under the semi-arid conditions of central Tunisia were also evaluated. Experiments were carried out on potato crop under full (FI) and deficit irrigation (DI) and two different water qualities supplied by means of a subsurface drip irrigation system. Results evidenced that the model, despite some discrepancies locally observed, can fairly accurat…

CWSI; Deficit irrigation; Hydrus-2D; Potato crop; Saline water; Stress coefficientHydrusIrrigationlcsh:Hydraulic engineeringGeography Planning and DevelopmentDeficit irrigation0207 environmental engineeringSettore AGR/04 - Orticoltura E Floricoltura02 engineering and technologyAgricultural engineeringDrip irrigationAquatic ScienceBiochemistryCroplcsh:Water supply for domestic and industrial purposeslcsh:TC1-978Settore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestali020701 environmental engineeringDeficit irrigationWater Science and TechnologyTranspirationlcsh:TD201-500CWSIHydrus-2DPotato crop04 agricultural and veterinary sciencesSaline waterRelative yieldSoil water040103 agronomy & agricultureStress coefficient0401 agriculture forestry and fisheriesEnvironmental science
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Using HYDRUS-2D model to assess the optimal drip lateral depth for eggplant crop in a sandy loam soil of central Tunisia

2016

The main objective of the work is to assess the optimal drip lateral depth for Eggplant crop (Solanum melongena L.) irrigated with a drip system in a sandy loam soil by means of field measurements and simulation models. Initially, the performance of Hydrus-2D was assessed based on the comparison between simulated soil water contents (SWC) and the corresponding measured in two plots, in which laterals with co-extruded emitters were laid on the soil surface (drip irrigation, DI-0) and at 20 cm depth (subsurface drip irrigation, SDI-20), respectively. In order to identify the optimal position of the lateral, the results of different scenarios, obtained by changing the installation depth of the…

Atmospheric ScienceHydrus-2DWater use efficiencySettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliForestryAgronomy and Crop ScienceHydrus-2D; Optimal lateral installation depth; Subsurface drip irrigation; Water use efficiency; Agronomy and Crop Science; Forestry; Atmospheric ScienceOptimal lateral installation depthSubsurface drip irrigation
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