Numerical evaluation of subsurface trickle irrigation with brackish water

Lila, Tarek Selim Abou; Berndtsson, Ronny; Persson, Magnus; Somaida, Mohamed; Elkiki, Mohamed; Hamed, Yasser; Mirdan, Ahmed

doi:10.1007/s00271-012-0393-6

Cited by 20 publications

(10 citation statements)

References 23 publications

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“…Their results supported the use of HYDRUS (2D/3D) as an important tool for investigating and designing drip irrigation management practices. Although higher irrigation frequencies were suggested in the literature to be a better drip irrigation practice (Assouline et al 2006), the numerical simulations by Abou Lila et al (2013) showed that the lower irrigation frequency actually produced a bigger wetted soil volume without an increase in water percolation below the plant roots. Skaggs et al (2010) evaluated the effects of the application rate, pulsed water applications, and the antecedent water content on the spreading of water from drip emitters using both field experimental data and numerical HYDRUS (2D/3D) simulations.…”

Section: Introductionmentioning

confidence: 98%

“…Because of the flexibility of HYDRUS (2D/3D) to accommodate different types of boundary conditions and the root uptake of water and nutrients, and because of its ease of use due to a graphical, user-friendly interface, the model has been widely and successfully used to simulate water movement under drip irrigation in many studies (e.g., Cote et al 2003;Skaggs et al 2004;Lazarovitch et al 2009;Kandelous et al 2012;Abou Lila et al 2013;Dabach et al 2013). For example, Skaggs et al (2004) compared experimental soil water distributions for drip irrigation with different irrigation amounts and different irrigation durations (20, 40, and 60 L m −1 of applied water) with the results of numerical simulations with HYDRUS (2D/3D), in which the soil hydraulic properties were obtained using pedotransfer functions (Schaap et al 2001).…”

Section: Introductionmentioning

confidence: 99%

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Modeling soil water dynamics in a drip-irrigated intercropping field under plastic mulch

Shi

Šimůnek

et al. 2015

Irrig Sci

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square errors of 0.043, 0.035, and 0.040 cm 3 cm −3 , respectively. The results showed that the SWC in the shallow root zone (0-40 cm) was lower under non-mulched locations than under mulched locations, irrespective of the irrigation treatment, while no significant differences in the SWC were observed in the deeper root zone (40-100 cm). The SWC in the shallow root zone was significantly higher for the high irrigation treatment (T1) than for the low irrigation treatment, while, again, no differences were observed in the deeper root zone. Simulations of two-dimensional SWC distributions revealed that the low irrigation treatment (T3) produced serious severe water stress (with SWCs near the wilting point) in the 30-40 cm part of the root zone, and that using separate drip emitter lines for each crop is well suited for producing the optimal soil water distribution pattern in the root zone of the intercropping field. The results of this study can be very useful in designing an optimal irrigation plan for intercropped fields.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Modeling soil water dynamics in a drip-irrigated intercropping field under plastic mulch

Shi

Šimůnek

et al. 2015

Irrig Sci

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“…The hydraulic parameters of each type of soil are shown in table 1. These parameters were taken as in [1] where the same field area was considered in the current study.…”

Section: Materails and Methodsmentioning

confidence: 99%

Simulation of nitrate distribution under different drip irrigation systems

Elasbah

Selim

Mirdan³

2017

Port-Said Engineering Research Journal

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In this study, the HYDRUS-2D/3D was used to simulate nitrate distribution within the soil under surface drip irrigation (DI) and subsurface drip irrigation (SDI) with emitter at depths 10 and 20 cm for tomato crop. Three different soil types (sand, loamy sand, and sandy loam) were considered. Also, the influence of initial soil moisture content on nitrate distribution, leaching out from simulation domain, and uptake by plant roots were investigated. Results showed that the highest percentage of nitrate leaching out from the simulation domain was occurred in sandy soil under the SDI with emitter at depth 20 cm as compared to other irrigation systems. It was about 5% under SDI with 20 cm emitter depth while approximately no leaching was occurred under other irrigation systems. The SDI with shallow emitter depth had the lowest percentage of nitrate leaching out from the simulation domain and the highest nitrate uptake by plant roots. As nitrate is effectively taken up by the plant roots, this will lead to reducing the groundwater contamination risk. Results also showed higher initial soil moisture content leads to augment in the percentage of nitrate leaching out from the simulation domain. Therefore, monitoring of the initial soil moisture content can lead to a good estimation of the nitrate leached to deeper soil layers and the potential of groundwater contamination risk.

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“…Hoffman and Shannon, 2007;Abou Lila et al, 2013;D'Odorico et al, 2013), only a limited number of studies have addressed its sustainability on land already affected by salt or when using saline irrigation water. Hoffman and Shannon, 2007;Abou Lila et al, 2013;D'Odorico et al, 2013), only a limited number of studies have addressed its sustainability on land already affected by salt or when using saline irrigation water.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Irrigation Treatments with Saline Water in a Future Climate in Tunisia

Selim

Karlsson

Bouksila

et al. 2018

Irrigation and Drainage

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Water scarcity and salinization of arable land in Tunisia are forcing the largest water user, the irrigation sector, to modernize and increase its efficiency. This study evaluated the impact of deficit irrigation with saline water in a sandy loam soil cultivated with potatoes in northern Tunisia. The evaluation considered soil salinization and irrigation water productivity in a changing climate by feeding a calibrated model in HYDRUS‐2D/3D with season‐long weather scenarios from one current and two future climate periods. Future weather scenarios were produced by statistically downscaling results from a regional climate model run with two greenhouse gas emission scenarios (RCP2.6 and RCP8.5). Results showed an increase in salt accumulation over the growing season and a potential decrease in crop yield for RCP8.5. RCP2.6 did not, however, result in any significant changes in salt accumulation or crop yield. Even with saline irrigation water, the use of drip technology resulted in a general leaching of salts from the root zone. This was slightly less apparent during deficit irrigation. However, irrigation water productivity was still higher during deficit irrigation than during full irrigation. Deficit irrigation could thus be profitable but long‐term effects should be addressed before making final recommendations. © 2018 John Wiley & Sons, Ltd.

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Numerical evaluation of subsurface trickle irrigation with brackish water

Cited by 20 publications

References 23 publications

Modeling soil water dynamics in a drip-irrigated intercropping field under plastic mulch

Modeling soil water dynamics in a drip-irrigated intercropping field under plastic mulch

Simulation of nitrate distribution under different drip irrigation systems

Evaluation of Different Irrigation Treatments with Saline Water in a Future Climate in Tunisia

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