Experimental study on evaporation from seasonally frozen soils under various water, solute and groundwater conditions in Inner Mongolia, China

Wu, Mousong; Huang, Jiesheng; Wu, Jingwei; Tan, Xiaofeng; Jansson, Per‐Erik

doi:10.1016/j.jhydrol.2016.01.050

Cited by 50 publications

(32 citation statements)

References 18 publications

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“…

θ_{t} = θ_{i} + θ_{l},

where θ l is the volumetric soil moisture (cm 3 /cm 3 ). The volume of water (cm 3 ) in the whole lysimeters depended on the summation of the total soil moisture (soil liquid moisture + ice content) of each layer at each day (Wu et al, ).

M_{i} = \sum_{j = 1}^{n} A_{f} θ_{ij} h_{j},

where i is the sampling time ( i = 1, 2, 3…); j is the soil layer ( j = 1, 2, 3…); n is the total number of soil layers; h j is the thickness of the layer 𝑗 (cm); θ ij is the volumetric water content of layer i at day j (cm 3 /cm 3 ); and A f is the lysimeter's sectional area (cm).…”

Section: Methodsmentioning

confidence: 99%

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Evaporation from seasonally frozen bare and vegetated ground at various groundwater table depths in the Ordos Basin, Northwest China

Zhang

Wang

Gong

et al. 2019

Hydrological Processes

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In cold climates, the process of freezing–thawing significantly affects the ground surface heat balance and water balance. To better understand the mechanism of evaporation from seasonally frozen soils, we performed field experiments at different water table depths on vegetated and bare ground in a semiarid region in China. Soil moisture and temperature, air temperature, precipitation, and water table depths were measured over a 5‐month period (November 1, 2016, to March 14, 2017). The evaporation, which was calculated by a mass balance method, was high in the periods of thawing and low in the periods of freezing. Increased water table depth in the freezing period led to high soil moisture in the upper soil layer, whereas lower initial groundwater levels during freezing–thawing decreased the cumulative evaporation. The extent of evaporation from the bare ground was the same in summer as in winter. These results indicate that a noteworthy amount of evaporation from the bare ground is present during freezing–thawing. Finally, the roots of Salix psammophila could increase the soil temperature. This study presents an insight into the joint effects of soil moisture, temperature, ground vegetation, and water table depths on the evaporation from seasonally frozen soils. Furthermore, it also has important implications for water management in seasonally frozen areas.

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“…

θ_{t} = θ_{i} + θ_{l},

M_{i} = \sum_{j = 1}^{n} A_{f} θ_{ij} h_{j},

Section: Methodsmentioning

confidence: 99%

“…Evaporation from frozen soils can also be calculated empirically, that is, using the Penman-Monteith equation or ground surface energy balance equation. Nevertheless, these methods have limited applicability to frozen soil because of its low liquid moisture and unsaturated hydraulic conductivity (Wu, Huang, Wu, Tan, & Jansson, 2016).…”

mentioning

confidence: 99%

Evaporation from seasonally frozen bare and vegetated ground at various groundwater table depths in the Ordos Basin, Northwest China

Zhang

Wang

Gong

et al. 2019

Hydrological Processes

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show abstract

“…Meanwhile, the soil water in the unsaturated zone recharged the groundwater. The surface soil moisture was lost to the outside by evaporation [37], and the moisture content decreased, but it generally remained higher than that at prefreezing.…”

Section: 2the Characteristics Of the Soil Moisture Distributionmentioning

confidence: 96%

“…During the soil thawing period, some thawed soil water from the frozen layer was lost to evaporation [37], and other thawed soil water recharged the shallow groundwater [6]. The soil moisture content at a depth of 10 cm was 35-40% when the GTD was 0.5 m. For the higher soil moisture content of the upper layer and surface results in the stronger evaporation rates, the phreatic evaporation amounts were 22.1 mm for the sandy loam and 26.1 mm for the fine sand.…”

Section: Phreatic Evaporation During Thawing Periodmentioning

confidence: 99%

Soil Water and Phreatic Evaporation in Shallow Groundwater during a Freeze–Thaw Period

Miao

Chen

Zheng

et al. 2017

Water

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Abstract:The exchange between shallow groundwater and soil water is unusually strong during freeze-thaw periods. The purpose of this study is to determine the effect of four different groundwater table depths (GTDs) and two soil textures on soil water moisture migration and phreatic evaporation during a freeze-thaw period using lysimeters. The results show that a high-moisture zone (HMZ) formed at a depth of 25-35 cm for sandy loam with a soil moisture content of 52%, while no obvious HMZ formed for fine sand when the GTD was 0.5 m. When the GTD was 2.0 m, a HMZ formed at a depth of 50-70 cm for sandy loam at the highest soil moisture content of 22%, while a HMZ formed at a depth of 60-80 cm for fine sand with a soil moisture content of 10%. The cumulative phreatic evaporation increased by a power function on freezing days during the freezing period. The total phreatic evaporation for sandy loam declined linearly with the increasing of GTD, and with the largest evaporation value of 73.6 mm for fine sand when the GTD was 1.0 m during the freeze-thaw period. The research would be significant for water resource assessment, the conversion of farmland water, and the prevention of saline land.

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“…Furthermore, research on water and heat transport in cold regions could provide a better understanding on regional hydrology and agricultural water resources management with respect to climate change [2,3]. However, the water and energy processes in cold regions are very complicated due to seasonal variations in the upper and lower boundary conditions [4,5], even though accurate estimation of water and energy balance on the surface of seasonally frozen soil is important for the water and heat flow in soil [6] as well as for a better understanding of the interactions between groundwater, surface water, and climate change in cold regions [7].…”

Section: Introductionmentioning

confidence: 99%

Constraining Parameter Uncertainty in Simulations of Water and Heat Dynamics in Seasonally Frozen Soil Using Limited Observed Data

Jansson

Tan

et al. 2016

Water

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Water and energy processes in frozen soils are important for better understanding hydrologic processes and water resources management in cold regions. To investigate the water and energy balance in seasonally frozen soils, CoupModel combined with the generalized likelihood uncertainty estimation (GLUE) method was used. Simulation work on water and heat processes in frozen soil in northern China during the 2012/2013 winter was conducted. Ensemble simulations through the Monte Carlo sampling method were generated for uncertainty analysis. Behavioral simulations were selected based on combinations of multiple model performance index criteria with respect to simulated soil water and temperature at four depths (5 cm, 15 cm, 25 cm, and 35 cm). Posterior distributions for parameters related to soil hydraulic, radiation processes, and heat transport indicated that uncertainties in both input and model structures could influence model performance in modeling water and heat processes in seasonally frozen soils. Seasonal courses in water and energy partitioning were obvious during the winter. Within the day-cycle, soil evaporation/condensation and energy distributions were well captured and clarified as an important phenomenon in the dynamics of the energy balance system. The combination of the CoupModel simulations with the uncertainty-based calibration method provides a way of understanding the seasonal courses of hydrology and energy processes in cold regions with limited data. Additional measurements may be used to further reduce the uncertainty of regulating factors during the different stages of freezing-thawing.

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Experimental study on evaporation from seasonally frozen soils under various water, solute and groundwater conditions in Inner Mongolia, China

Cited by 50 publications

References 18 publications

Evaporation from seasonally frozen bare and vegetated ground at various groundwater table depths in the Ordos Basin, Northwest China

Evaporation from seasonally frozen bare and vegetated ground at various groundwater table depths in the Ordos Basin, Northwest China

Soil Water and Phreatic Evaporation in Shallow Groundwater during a Freeze–Thaw Period

Constraining Parameter Uncertainty in Simulations of Water and Heat Dynamics in Seasonally Frozen Soil Using Limited Observed Data

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