Development and application of DRAINMOD model for simulating crop yield and water conservation benefits of drainage water recycling

Moursi, Hossam; Youssef, Mohamed A.; Chescheir, G. M.

doi:10.1016/j.agwat.2022.107592

Cited by 15 publications

(7 citation statements)

References 49 publications

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“…2). The weir plates of the control structure were adjusted by a smart system (Bagheri, 2022;Moursi, 2022), which fully automated the change in the structure's settings based on the field water table depth (WTD). Drainage and subirrigation were triggered automatically based on predefined WTD thresholds that were set depending on crop type and growth stage (table 2).…”

Section: Drainage and Irrigation Water Managementmentioning

confidence: 99%

“…67(1): 13-25 automated water quality samplers (WS700, Global Water) to collect flow proportional discrete samples for water quality analysis. A detailed description of the water quality monitoring at the study site was provided by Moursi (2022) and Moursi et al (2023). Precipitation and air temperature were measured using automated tipping bucket rain gauges (HOBO; Onset).…”

Section: Table 2 Water Table Depth Thresholds Used By the Smart Syste...mentioning

confidence: 99%

“…The performance of a DWR system in modulating crop stresses due to water deficit conditions and subsequently minimizing yield losses depends on the size of the storage reservoir, the length and severity of the dry conditions during the growing season, and the sensitivity of the crop to water shortage, which varies among different crops and among different growth stages for the same crop. Models, such as DRAINMOD-DWR (Moursi et al, 2022), can be extremely useful in understanding the performance of the system as affected by the controlling factors to optimize system performance. The reservoir at the experimental site had a relatively small storage capacity and was not expected to provide enough water to meet the irrigation demand for extended periods of dry conditions during the growing season.…”

Section: Treatment Ditchmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Drainage and Subirrigation From a Small Drainage Water Recycling Reservoir on Corn and Soybean Yields in Eastern North Carolina

Moursi,

Youssef,

Poole

2024

Journal of the ASABE

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Highlights The Drainage Water Recycling (DWR) reservoir stored enough water to meet irrigation demand in three of four growing seasons. Subirrigation raised the groundwater table by an average of 15 cm. On average, DWR increased corn and soybean yields by 0.52 Mg ha-1 (8%) and 0.45 Mg ha-1 (17%), respectively. Subirrigation from the small size DWR reservoir did not protect corn from extended dry conditions during the growing season. Nutrients recycled back to the field via supplemental irrigation were not large enough to reduce fertilizer application rate. Abstract. Drainage water recycling (DWR) has been proposed as a source of supplemental irrigation to increase crop production resilience to extended and more frequent dry periods during the crop growing season; however, the system’s potential benefits have not been adequately quantified. The main objective of this study was to assess the performance of a DWR system for providing water for supplemental irrigation to corn and soybean at a research site in eastern North Carolina and quantify corn and soybean yield responses during 4 growing seasons (2018-2021) with varying weather conditions. Two treatments were implemented at the study site: DWR and the control (CT) treatment. The CT treatment was a 11.23 ha non-irrigated field that was primarily drained by a surface drainage system. The DWR treatment (11.48 ha) had a subsurface drainage system that provided drainage during the wet periods and subirrigation during the dry periods of the growing season. A small size reservoir (5,458 m3) was used to collect surface runoff and subsurface drainage and subirrigate the DWR treatment. Results showed that the DWR reservoir stored enough water to meet irrigation requirements in 3 of the four growing seasons and provided 5 to 73 mm of irrigation to the DWR treatment. Subirrigation raised the groundwater table by an average of 15 cm, which helped increase the upward movement of soil water to the root zone and meet crop evapotranspiration demand. DWR increased corn yields by 0.13 and 0.91 Mg ha-1 (1% and 79%) and soybean yields by 0.31 and 0.59 Mg ha-1 (9% and 30%). Subirrigation, which is generally less efficient than overhead irrigation methods, did not optimize the use of the limited water stored in the small reservoir and could not provide enough protection to corn against prolonged dry conditions in the 2019 growing season. The amount of nutrients recycled back to the field through subirrigation was not large enough to help reduce fertilizer application rate. Overall, the results demonstrated that DWR is a promising practice for increasing the resilience of crop production in the southeastern U.S. to the uncertainty in precipitation, which is expected to intensify by climate change. Monitoring the performance of DWR for longer periods with varying factors of weather, soil, and system design and management would help guide the design and management of the system to optimize the performance and minimize the implementation cost. Keywords: Drainage water management, Drainage water reuse, Irrigation reservoir, On-farm water storage, Subsurface drainage, Supplemental irrigation.

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Section: Drainage and Irrigation Water Managementmentioning

confidence: 99%

Section: Table 2 Water Table Depth Thresholds Used By the Smart Syste...mentioning

confidence: 99%

Section: Treatment Ditchmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Drainage and Subirrigation From a Small Drainage Water Recycling Reservoir on Corn and Soybean Yields in Eastern North Carolina

Moursi,

Youssef,

Poole

2024

Journal of the ASABE

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“…Li et al [23] used the DNDC model to quantitatively analyze the main sources of nitrogen pollutants in farmland. Moursi et al [24] improved the drainage model and developed the DRAINMOD-DWR model to simulate the hydrology and crop yield of the water cycle system.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Drainage Volume and Nitrogen Loss Load in Paddy Fields under Different Irrigation and Drainage Modes and Hydrological Years

Meng,

Yu,

et al. 2024

Agronomy

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Controlled irrigation and drainage technology for rice is crucial water management that has been widely promoted in northeastern China. It is of great significance to clarify the response mechanism of the drainage volume and nitrogen loss load in the paddy field for realizing water saving, emission reduction, pollution control and high yield in rice-planting areas. In this study, we conducted field experiments and simulations on drainage volume and nitrogen loss load regulations of paddy fields in a cold black soil region under different hydrological years and irrigation and drainage modes. The key parameters for simulating drainage volume and nitrogen loss load in paddy fields using DRAINMOD-NII were determined by combining field experiments, data analysis, and numerical simulation. The results showed that the simulated drainage volume and nitrogen loss load showed a high coefficient of determination with the observed results, which were all above 0.83. The Nash–Sutcliffe efficiency coefficient ranged from 0.72 to 0.97 in model calibration and verification, indicating that the model effectively simulated drainage volume and nitrogen loss load in paddy fields under controlled irrigation and drainage in the cold black soil region. The paddy field drainage volume was not only influenced by rainfall frequency but also by the distribution of rainfall. Compared with traditional irrigation and drainage, the controlled irrigation and drainage significantly reduced the irrigation amount by 39.07% and increased rainwater utilization efficiency by 13.07%. It also reduced the drainage volume by 44.71% and NO3−-N and NH4+-N loss load by 59.38% and 44.96%. The controlled irrigation and drainage mode optimized natural rainfall resources and increased irrigation water productivity and rice yield by 97.85% and 16.88%, respectively. Controlled irrigation and drainage outperformed the traditional mode in different hydrological years, with more pronounced effects in dry years, which highlights its significant value in practical agricultural production.

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“…The model was extended to simulate the macropore seepage [28]. Meanwhile, this model well simulated the recycling of subsurface pipe drainage water and the related economic benefits [29].…”

Section: Introductionmentioning

confidence: 99%

Study on Water and Salt Transport under Different Subsurface Pipe Arrangement Conditions in Severe Saline–Alkali Land in Hetao Irrigation District with DRAINMOD Model

Tian,

Miao,

Shi

et al. 2023

Water

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As an effective method to improve saline–alkali land, the drainage from subsurface pipes has been extensively studied in typical arid and semi-arid agricultural areas (Hetao Irrigation District). However, there are few studies on the improvement of subsurface pipe layout and the long-term soil salinization control in the process of leaching and soil amendment with subsurface pipes in this area. This study investigated the water and salt migration in the process of amending the heavy saline soil. Field experiments growing sunflowers and numerical model calculation were combined in this research. It was found in the field experiment that the salt concentration in the surface pipe drainage was positively correlated with the salt content in the soil and the depth of the pipe, while it was negatively correlated with the amount of irrigation water and the spacing of crops. Thus, the soil desalting rate (N) and salt control rate (SCR) were positively correlated with the depth of the pipe, and they were negatively correlated with the spacing. The leaching effect of irrigation would decrease when the soil salt content decreased. On the basis of field experiments, the DRAINMOD model and drainmod equation were used to calculate the water and salt migration in 38 different field plots during 2019 and 2020. When N was the same, the soil salinity in several plots with large burial depth could be controlled below the salt tolerance threshold of sunflowers during the growth period in the second year. The quantitative relationship between N and SCR, soil salt content before leaching, water amount of leaching, pipe spacing and buried depth was already established. These results can help develop strategies for desalination and salt control in the soil in the arid and semi-arid areas with the optimal layout of subsurface pipes.

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Development and application of DRAINMOD model for simulating crop yield and water conservation benefits of drainage water recycling

Cited by 15 publications

References 49 publications

The Effect of Drainage and Subirrigation From a Small Drainage Water Recycling Reservoir on Corn and Soybean Yields in Eastern North Carolina

The Effect of Drainage and Subirrigation From a Small Drainage Water Recycling Reservoir on Corn and Soybean Yields in Eastern North Carolina

Simulation of Drainage Volume and Nitrogen Loss Load in Paddy Fields under Different Irrigation and Drainage Modes and Hydrological Years

Study on Water and Salt Transport under Different Subsurface Pipe Arrangement Conditions in Severe Saline–Alkali Land in Hetao Irrigation District with DRAINMOD Model

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