Estimating impacts of water-table depth on groundwater evaporation and recharge using lysimeter measurement data and bromide tracer

Huo, Siyuan; Jin, Menggui; Liang, Xing; Li, Xiang; Hu, Hao

doi:10.1007/s10040-019-02098-6

Cited by 13 publications

(15 citation statements)

References 51 publications

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“…Soil lithologic structure in the unsaturated zone, soil water content and water table depth greatly affect the GR and ET (Chen & Hu, 2004;Gomboš et al, 2018;Huo et al, 2020;Shah et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…In this situation, the unsaturated zone shows an upward water potential gradient, causing injected bromide tracers to move upward (Huo, 2015). Therefore, soil evaporation rate could be calculated theoretically by the upward transport distance of the tracer concentration peaks (1.2 m [or 0.8 m for the B9 site] was deemed to be the concentration peak on the injection date) through the unsaturated zone during a period of time (Equation (2)) (Huo et al, 2020).

{SE}_{r} = ‐ v \cdot θ = \frac{Δz}{Δt} \cdot θ

where SE r is the soil evaporation rate [L T −1 ];

normalΔ t

is the time interval between trace injection and sampling;

normalΔ z

is the transport distance of the bromide concentration peak during Δ t ； v is the velocity of the bromide concentration peak [L T −1 ]; and

θ

is the average soil volumetric water content within

normalΔ z

[L 3 L −3 ].…”

Section: Methodsmentioning

confidence: 99%

“…Tracer tests can provide information about soil-water movement (Yang & Fu, 2017) and they are considered to give more reliable estimates of GR (Huang et al, 2020;Seraphin et al, 2016;Wang et al, 2008;Zagana et al, 2007). ET can be evaluated by mapping the vertical movement of tracer concentration peaks in arid and semi-arid areas with shallow water table depths (Huo, 2015;Huo et al, 2020;Wang et al, 2020). However, in some cases, such as saline-alkali lands or areas with prevalent crop root channels that cause preferential flow, tracer tests may not be applicable (Huang & Pang, 2010;Scanlon et al, 2006;Zagana et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Chen

Wang

Liu

et al. 2021

Hydrological Processes

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Accurate estimation of groundwater recharge (GR) and evapotranspiration (ET) are essential for sustainable management of groundwater resources, especially in arid and semi-arid regions. In the Manas River Basin (MRB), water shortage is the main factor restricting sustainable development of irrigated agriculture, which relies heavily on groundwater. Film-mulched drip irrigation significantly changes the pattern and dominant processes of water flow in the unsaturated zone, which increases the difficulty of GR and ET estimation. To better estimate GR and ET under filmmulched drip irrigation in the MRB, bromide tracer tests and soil lithologic investigation were conducted at 12 representative sites. A one-dimensional variably saturated flow model (HYDRUS-1D) was calibrated at each site using soil evaporation data inferred from the bromide tracer tests. The results showed that average annual soil evaporation in uncultivated lands calculated from bromide trace tests was 25.55 mm.The annual GR ranged from 5.5 to 37.0 mm under film-mulched drip irrigation. The annual ET ranged from 507.0 to 747.1 mm, with soil evaporation between 35.7 and 117.0 mm and transpiration between 460.9 and 642.3 mm. Soil evaporation represented 7% to 16% of the total ET and more than 70% of precipitation and irrigation water was used by cotton plants. Spatial variations of soil lithology, water table depth and initial soil water content led to the spatial differences of GR and ET in the MRB.Our study indicated that bromide tracer tests are useful for inferring ET in the arid and semi-arid oases. The combination of bromide tracer tests and HYDRUS-1D enhances reliability for estimation of GR and ET under film-mulched drip irrigation in the MRB and shows promise for other similar arid inland basins around the world.

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Section: Discussionmentioning

confidence: 99%

{SE}_{r} = ‐ v \cdot θ = \frac{Δz}{Δt} \cdot θ

where SE r is the soil evaporation rate [L T −1 ];

normalΔ t

is the time interval between trace injection and sampling;

normalΔ z

is the transport distance of the bromide concentration peak during Δ t ； v is the velocity of the bromide concentration peak [L T −1 ]; and

θ

is the average soil volumetric water content within

normalΔ z

[L 3 L −3 ].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Chen

Wang

Liu

et al. 2021

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previous studies have indicated that the soil evaporation mainly comes from groundwater recharge in the case of without precipitation recharge (Jia. 2008;Jin et al, 2014;Huo et al, 2020). Furthermore, the water rising along the capillary will be more because of the strong capillary action of soil water when the groundwater depth was shallow.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Groundwater Depth on the Soil Evaporation in Horqin Sandy Land, China

et al. 2021

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The interactions between groundwater depth and soil hydrological processes, play an important role in both arid and semi-arid ecosystems. The effect of groundwater depth on soil water variations were neglected or not explicitly treated. In this paper, we combine a simulation experiment and a water flow module of HYDRUS-1D model to study the variation in soil evaporation under different groundwater depth conditions and the relationship between groundwater depth and evaporation efficiency in Horqin Sandy Land, China. The results showed that with an increase in groundwater depth, the evaporation of soil and the recharge of groundwater decrease. In this study, the groundwater recharge did not account for more than 21% of the soil evaporation for the depths of groundwater examined. The soil water content at 60 cm was less affected by the evaporation efficiency when the mean groundwater depth was 61 cm during the experimental period. In addition, the evaporation efficiency (the ratio of actual evaporation to potential evaporation) decreases with the increase in groundwater depth during the experiment. Furthermore, the soil evaporation was not affected by groundwater when the groundwater depth was deeper than 239 cm.

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“…Previous studies had different results in this regard. For example, Huo et al [19] revealed that evaporation decreased as the water table fell by performing a lysimeter experiment incorporating a 1-year-long bromide tracer test, until it was down to the extinction depth of groundwater. Luo and Sophocleous [64] found that ET decreased with increasing depth to the water table through the HYDRUS-1D model in arid and semi-arid regions.…”

Section: Influencing Factors Of Evapotranspirationmentioning

confidence: 99%

Evapotranspiration Estimation Using Remote Sensing Technology Based on a SEBAL Model in the Upper Reaches of the Huaihe River Basin

et al. 2021

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Understanding the spatial and temporal variations of evapotranspiration (ET) is vital for water resources planning and management and drought monitoring. The development of a satellite remote sensing technique is described to provide insight into the estimation of ET at a regional scale. In this study, the Surface Energy Balance Algorithm for Land (SEBAL) was used to calculate the actual ET on a daily scale from Landsat-8 data and daily ground-based meteorological data in the upper reaches of Huaihe River on 20 November 2013, 16 April 2015 and 23 March 2018. In order to evaluate the performance of the SEBAL model, the daily SEBAL ET (ETSEBAL) was compared against the daily reference ET (ET0) from four theoretical methods: the Penman-Monteith (P-M), Irmak-Allen (I-A), the Turc, and Jensen-Haise (J-H) method, the ETMOD16 product from the MODerate Resolution Imaging Spectrometer (MOD16) and the ETVIC from Variable Infiltration Capacity Model (VIC). A linear regression equation and statistical indices were used to model performance evaluation. The results showed that the daily ETSEBAL correlated very well with the ET0, ETMOD16, and ETVIC, and bias between the ETSEBAL with them was less than 1.5%. In general, the SEBAL model could provide good estimations in daily ET over the study region. In addition, the spatial-temporal distribution of ETSEBAL was explored. The variation of ETSEBAL was significant in seasons with high values during the growth period of vegetation in March and April and low values in November. Spatially, the daily ETSEBAL values in the mountain area were much higher than those in the plain areas over the study region. The variability of ETSEBAL in this study area was positively correlated with elevation and negatively correlated with surface reflectance, which implies that elevation and surface reflectance are the important factors for predicting ET in this study area.

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Estimating impacts of water-table depth on groundwater evaporation and recharge using lysimeter measurement data and bromide tracer

Cited by 13 publications

References 51 publications

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

The Effects of Groundwater Depth on the Soil Evaporation in Horqin Sandy Land, China

Evapotranspiration Estimation Using Remote Sensing Technology Based on a SEBAL Model in the Upper Reaches of the Huaihe River Basin

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