Using HYDRUS-2D Simulation Model to Evaluate Wetted Soil Volume in Subsurface Drip Irrigation Systems

Provenzano, Giuseppe

doi:10.1061/(asce)0733-9437(2007)133:4(342)

Cited by 98 publications

(49 citation statements)

References 15 publications

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“…The rest of the upper side of the domain in the SDI treatment was the atmospheric boundary condition representing the soil surface. The no-flux boundary was used on the right and left sides of the soil profile, because the relationship of the symmetry of the soil water pressure head inside and outside the geometry domain was assumed under both irrigation methods [19,20,25,26]. A free drainage boundary condition was imposed at the bottom of the soil profile.…”

Section: Water Flow Equationsmentioning

confidence: 99%

“…HYDRUS-2D is a hydrologic model that simulates water movements in two-and three-dimensional, variably-saturated porous media based on the numerical solution of the Richards equation [19,21,22,[24][25][26] and has been successfully used to model soil water movement under different irrigation methods, such as SDI, subsurface drip irrigation and flood irrigation [22,24,[27][28][29]. Previous simulation studies [19,21,22,24] have shown that the results for the soil water content (SWC) simulated by HYDRUS-2D are in reasonable agreement with measured values. Soil water movement associated with root water uptake is complex, and has been studied using empirical, analytical, and numerical models in the past decades.…”

Section: Introductionmentioning

confidence: 99%

“…The use of computer simulations with validated mathematical models is a rapid and inexpensive approach, which has received a great deal of attention during the past few decades [18][19][20][21][22][23][24][25]. HYDRUS-2D is a hydrologic model that simulates water movements in two-and three-dimensional, variably-saturated porous media based on the numerical solution of the Richards equation [19,21,22,[24][25][26] and has been successfully used to model soil water movement under different irrigation methods, such as SDI, subsurface drip irrigation and flood irrigation [22,24,[27][28][29]. Previous simulation studies [19,21,22,24] have shown that the results for the soil water content (SWC) simulated by HYDRUS-2D are in reasonable agreement with measured values.…”

Section: Introductionmentioning

confidence: 99%

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Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

Zhang

Liu

Sun

et al. 2017

Water

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Abstract:Winter wheat and cotton are the main crops grown on the North China Plain (NCP). Cotton is often transplanted after the winter wheat harvest to solve the competition for cultivated land between winter wheat and cotton, and to ensure that both crops can be harvested on the NCP. However, the root system of transplanted cotton is distorted due to the restrictions of the seedling aperture disk before transplanting. Therefore, the investigation of the deformed root distribution and water uptake in transplanted cotton is essential for simulating soil water movement under different irrigation methods. Thus, a field experiment and a simulation study were conducted during 2013-2015 to explore the deformed roots of transplanted cotton and soil water movement using border irrigation (BI) and surface drip irrigation (SDI). The results showed that SDI was conducive to root growth in the shallow root zone (0-30 cm), and that BI was conducive to root growth in the deeper root zone (below 30 cm). SDI is well suited for producing the optimal soil water distribution pattern for the deformed root system of transplanted cotton, and the root system was more developed under SDI than under BI. Comparisons between experimental data and model simulations showed that the HYDRUS-2D model described the soil water content (SWC) under different irrigation methods well, with root mean square errors (RMSEs) of 0.023 and 0.029 cm 3 cm −3 and model efficiencies (EFs) of 0.68 and 0.59 for BI and SDI, respectively. Our findings will be very useful for designing an optimal irrigation plan for BI and SDI in transplanted cotton fields, and for promoting the wider use of this planting pattern for cotton transplantation.

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Section: Water Flow Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

Zhang

Liu

Sun

et al. 2017

Water

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“…The program is recommended as a useful tool for research and design of SDI systems. This simulation program may be used for optimal management of SDI systems (Meshkat et al 2000;Schmitz et al 2002;Cote et al 2003;Li et al 2005) or for system design purposes (BenGal et al 2004;Provenzano 2007;Gil et al 2011).…”

Section: Hydrus 2d/3dmentioning

confidence: 99%

A Review of Subsurface Drip Irrigation and Its Management

Sinobas¹,

Rodríguez²

2012

Water Quality, Soil and Managing Irrigation of Crops

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“…HYDRUS-2D has been successfully used to model various solute transports under drip irrigation, such as nitrogen leaching, fertigation, and salt accumulation [31][32][33][34][35]. Previous simulation studies [29,[36][37][38][39][40] showed that HYDRUS-2D simulations of soil water content are in reasonable agreement with measured values.…”

Section: Introductionmentioning

confidence: 97%

Evaluating the Effects of Mulch and Irrigation Amount on Soil Water Distribution and Root Zone Water Balance Using HYDRUS-2D

Han

Zhao

Feng

et al. 2015

Water

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Water scarcity is the most critical constraint for sustainable cotton production in Xinjiang Province, northwest China. Drip irrigation under mulch is a major water-saving irrigation method that has been widely practiced for cotton production in Xinjiang. The performance of such an irrigation system should be evaluated for proper design and management. Therefore, a field experiment and a simulation study were conducted to (1) determine a modeling approach that can be applied to manage drip irrigation under mulch for cotton production in this region; and (2) examine the effects of irrigation amount and mulch on soil water distribution and root zone water balance components. In the experiment, four irrigation treatments were used: T1, 166. 2623T1 to T4, while a lot of stored soil water in the root zone was utilized and a huge amount of water was recharged from the layer below 70 cm to compensate for the decrease in irrigation amount. Mulch significantly reduced evaporation by 11.7 mm and increased root water uptake by 11.2 mm. Our simulation study suggests that this model can be applied to provide assistance in designing drip irrigation systems and developing irrigation strategies.

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Using HYDRUS-2D Simulation Model to Evaluate Wetted Soil Volume in Subsurface Drip Irrigation Systems

Cited by 98 publications

References 15 publications

Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

A Review of Subsurface Drip Irrigation and Its Management

Evaluating the Effects of Mulch and Irrigation Amount on Soil Water Distribution and Root Zone Water Balance Using HYDRUS-2D

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