Impacts of a shallow saline water table on maize evapotranspiration and groundwater contribution using static water table lysimeters and the dual Kc water balance model SIMDualKc

Liu, Meihan; Paredes, Paula; Shi, Haibin; Ramos, Tiago B.; Dou, Xu; Dai, Liping; Pereira, Luís S.

doi:10.1016/j.agwat.2022.107887

Cited by 14 publications

(1 citation statement)

References 128 publications

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“…The isotopes tracers can extend our understanding of evaporation rates (Robertson and Gazis 2006), the extent of soil water recharge (Garvelmann et al 2012; Sprenger et al 2018), residence times of water along a soil profile (Gazis and Feng 2004), the infiltration and groundwater recharge (Song et al 2009; Zhu et al 2021), and root water uptake patterns (Ma and Song 2016; Rothfuss and Javaux 2017). Additionally, water balance simulation using Richards equation helps to analyze the mechanisms of water flow in soil (Liu et al 2022). In summary, the combined physical and isotopic techniques and water balance simulation have been proven useful in investigating vertical water movement in the unsaturated zone and identifying the recharge mechanism to groundwater.…”

Section: Introductionmentioning

confidence: 99%

Soil Water Movement and Groundwater Recharge Under Different Land Uses in a Flood‐Irrigated Area

Yang

Song

Ma³

et al. 2023

Groundwater

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The water shortage in agriculture area in China requires to reduce the consumption of excessive water in flood irrigation. Therefore, the dynamics of soil water regime is needed to investigate and water‐saving irrigation is necessary to alleviate water shortage. This study investigated the impact of flood irrigation on soil water movement and recharge to groundwater in the Yellow River irrigation area of Yinchuan Plain, China. Combining comprehensive field observation, stable isotopic techniques and water balance simulation, we described the soil water mechanism in vadose zone covered with bare soil in 2019 and planted with maize in 2020. The soil layers affected by precipitation infiltration and evaporation were mainly 0–50 cm, while the soil influenced by irrigation was the entire profile in the mode of piston flow. The maize root took up the soil water up to the depth of 100 cm during the tasseling period. The infiltration and capillary rise in 2020 were similar with those in 2019. However, the total deep percolation was 156.5 mm in 2020 which was about 50% of that in 2019 because of the maize root water uptake. The leakage of ditch water was the major recharge resource of groundwater for the fast water table rise. Precise irrigation is required to minimize deep percolation and leakage of ditch water and reduce excessive unproductive evapotranspiration. Therefore, understanding the soil water movement and groundwater recharge is critical for agricultural water management to improve irrigation efficiency and water use efficiency in arid regions.

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Section: Introductionmentioning

confidence: 99%

Soil Water Movement and Groundwater Recharge Under Different Land Uses in a Flood‐Irrigated Area

Yang

Song

Ma³

et al. 2023

Groundwater

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Evapotranspiration and crop coefficients of sprinkler-irrigated aerobic rice in southern Brazil using the SIMDualKc water balance model

Petry,

Tonetto,

Martins

et al. 2024

Irrig Sci

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Mulching effects on soil evaporation, crop evapotranspiration and crop coefficients: a review aimed at improved irrigation management

Ramos,

Darouich,

Pereira

2024

Irrig Sci

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Mulching is a widely adopted agronomic practice, often used as a water-saving strategy due to its effectiveness in reducing soil evaporation. However, effects vary depending on the materials used and the extent of mulch soil coverage. Consequently, the impacts of mulching may differ considerably across production systems, preventing the establishment of reliable guidelines for irrigation water management. The objective of this study is to comprehensively review existing literature that compares mulching versus no-mulching management, aiming to gain a deeper understanding of the effects of mulching on soil evaporation (Es), crop coefficients (Kc), and actual crop evapotranspiration (ETc act). 58 studies were selected. The impact of mulching was particularly notable in the early crop stages, when the soil is not fully covered. Data in literature shows that plastic films were more effective in reducing Kc than organic materials. However, this effect, while evident during the early crop stages, diminished throughout the rest of the season. Black plastic films were more effective during the early crop stages compared to other colored plastics, particularly relative to the decrease of Kc, but this effect also diminishes during the rest of the season. Building upon these findings, the study provides guidelines for expected reductions in Kc values based on the type of crop, crop stage, and the mulching material most used in each cropping system.

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Impacts of a shallow saline water table on maize evapotranspiration and groundwater contribution using static water table lysimeters and the dual Kc water balance model SIMDualKc

Cited by 14 publications

References 128 publications

Soil Water Movement and Groundwater Recharge Under Different Land Uses in a Flood‐Irrigated Area

Soil Water Movement and Groundwater Recharge Under Different Land Uses in a Flood‐Irrigated Area

Evapotranspiration and crop coefficients of sprinkler-irrigated aerobic rice in southern Brazil using the SIMDualKc water balance model

Mulching effects on soil evaporation, crop evapotranspiration and crop coefficients: a review aimed at improved irrigation management

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