Subsurface irrigation system design for vegetable production using HYDRUS-2D

Sakaguchi, Atsushi; Yanai, Yosuke; Sasaki, Hidekazu

doi:10.1016/j.agwat.2019.04.003

Cited by 13 publications

(12 citation statements)

References 11 publications

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“…Given the stability of the HYDRUS model, this software can be used to investigate the distribution of soil water and its movement under the surface and subsurface of drip irrigation systems [18][19][20][21]. It can also be used to design and evaluate the management of different irrigation systems, soils and crops [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Parameterization of Soil Hydraulic Parameters for HYDRUS-3D Simulation of Soil Water Dynamics in a Drip-Irrigated Orchard

Domínguez-Niño

Arbat

Raij-Hoffman

et al. 2020

Water

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Although surface drip irrigation allows an efficient use of water in agriculture, the heterogeneous distribution of soil water complicates its optimal usage. Mathematical models can be used to simulate the dynamics of water in the soil below a dripper and promote: a better understanding, and optimization, of the design of drip irrigation systems, their improved management and their monitoring with soil moisture sensors. The aim of this paper was to find the most appropriate configuration of HYDRUS-3D for simulating the soil water dynamics in a drip-irrigated orchard. Special emphasis was placed on the source of the soil hydraulic parameters. Simulations parameterized using the Rosetta approach were therefore compared with others parameterized using that of HYPROP + WP4C. The simulations were validated on a seasonal scale, against measurements made using a neutron probe, and on the time course of several days, against tensiometers. The results showed that the best agreement with soil moisture measurements was achieved with simulations parameterized from HYPROP + WP4C. It further improved when the shape parameter n was empirically calibrated from a subset of neutron probe measurements. The fit of the simulations with measurements was best at positions near the dripper and worsened at positions outside its wetting pattern and at depths of 80 cm or more.

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Section: Introductionmentioning

confidence: 99%

Parameterization of Soil Hydraulic Parameters for HYDRUS-3D Simulation of Soil Water Dynamics in a Drip-Irrigated Orchard

Domínguez-Niño

Arbat

Raij-Hoffman

et al. 2020

Water

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“…In contrast to our previous lysimetric observation [41], the model calibration was performed only for the solute. While some of authors [50][51][52] in the HYDRUS-2D environment modified the model through calibration of hydraulic parameters, in this case, accurate laboratory determination of soil characteristics was used. The simplification of the model has a main objective: if in the future it is necessary to treat irrigation with wastewater in practice, the determination of soil characteristics at the laboratory scale is objectively faster than calibrating these characteristics through long-term in situ measurements and subsequent calibration in the numerical environment of the hydraulic model.…”

Section: Resultsmentioning

confidence: 99%

Irrigation with Treated Wastewater as an Alternative Nutrient Source (for Crop): Numerical Simulation

et al. 2021

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From a global perspective, drought is a well-known manifestation of climate change. The search for alternative sources of water also brings uncertainties and risks, for example, in relation to wastewater irrigation. We asked ourselves whether and how supplemental irrigation with pre-treated wastewater would affect the subsoil or groundwater quality. We constructed semi-operational models that were loaded with wastewater in a controlled manner over three years of observations. Ammonium nitrogen (NH4+-N) pollution is one of the monitored parameters in wastewater discharge. In specific situations and under strict operating conditions, it can be assumed that ammonia nitrogen may not be a significant problem for groundwater. Already at a depth of 0.5 m below ground level, the average nitrogen levels are below 0.02 mg/L at an irrigation rate of approximately 15.5 mm/day. When monitoring total phosphorus (TP), these values are reduced with more variability—depending on the plant species at the surface, ranging from 0.17 to 0.95 mg/L. The measured values are used to calibrate the numerical model, or to determine the reaction parameters that enter the governing equation to describe the distribution of the solution in the soil environment. The results show an acceptable compliance between the model and real measurements, it will be possible to use them in practice for the design of wastewater irrigation systems.

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“…In 2019, the majority of papers of subsurface irrigation systems were concentrated in measurements. For example, an optimization study of designing subsurface irrigation systems conducted by Sakaguchi et al (2019). They concluded that the recommended design parameters depended upon soil type, climate condition, irrigation intensity, and plant type.…”

Section: Review Of Literature Of 2015-2019mentioning

confidence: 99%

Untitled

2021

JST

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The main purpose of this review is to find the diversity in research studies of subsurface irrigation systems in the past two decades. Two periods of five years were selected to reflect the research studies at the beginning and the end of the comparing periods range. A statistical sorting was used to investigate the distribution of papers according to objectives, types of irrigation systems, research methods, and limitations of the studies. Results showed that the measurements and evaluations were the most presented objectives of the selected papers for both periods. Furthermore, almost 90 percent of the recent papers used multiple research methods, unlike the papers published in the former period which only 56 percent of them used multiple methods. Also, more than 90 percent of the recent papers used a single irrigation system. In conclusion, knowledge of subsurface irrigation systems had been advanced in the former studies mostly by analyzing the measurements and evaluations of the traditional irrigation systems. Unlike the former period, the advancement in knowledge has been produced in the current period by introducing new subsurface irrigation systems and more concentration by the order of measurements, evaluation, and designing, respectively.

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Subsurface irrigation system design for vegetable production using HYDRUS-2D

Cited by 13 publications

References 11 publications

Parameterization of Soil Hydraulic Parameters for HYDRUS-3D Simulation of Soil Water Dynamics in a Drip-Irrigated Orchard

Parameterization of Soil Hydraulic Parameters for HYDRUS-3D Simulation of Soil Water Dynamics in a Drip-Irrigated Orchard

Irrigation with Treated Wastewater as an Alternative Nutrient Source (for Crop): Numerical Simulation

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