Development of hydro-pedotransfer functions to predict capillary rise and actual evapotranspiration for grassland sites

Wessolek, Gerd; Bohne, Klaus; Duijnisveld, Wilhelmus H. M.; Trinks, Steffen

doi:10.1016/j.jhydrol.2011.01.059

Cited by 11 publications

(7 citation statements)

References 8 publications

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“…These authors referred the use of water flux models such as HYDRUS (Šimůnek et al, 2008;Soylu et al, 2011), saturated groundwater models like MODFLOW (Harbaugh et al, 2000) combined with a GIS (Xu et al, 2011), or coupled with soil water models such as SWAT (Xu et al, 2012) and lumped stochastic models (Vervoort and van der Zee, 2008;Tamea et al, 2009). Different approaches are also reported in literature such as WetSpass, a GIS/Remote sensing based model integrated with MODFLOW (Moiwo et al, 2010), or simple approaches like those proposed by Wessolek et al (2011) or by Sun et al (2011). The use of water balance models is limited to those having an appropriate capillary rise module as it is the case of the SIMDualKc model (Rosa et al, 2012a), successfully applied to maize GDE in Horqin (Wu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Ecohydrology of groundwater‐dependent grasslands of the semi‐arid Horqin sandy land of inner Mongolia focusing on evapotranspiration partition

Liu

Paredes

et al. 2015

Ecohydrology

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The Horqin sandy steppe is an ecosystem where groundwater‐dependent grasslands are main components. To study the dynamics of soil water and evapotranspiration, and its partition into transpiration and soil evaporation, the SIMDualKc model was applied to two sites in the Agula eco‐hydrological study area, Inner Mongolia, China. This model adopts the dual crop coefficient approach to compute daily crop evapotranspiration (ETc) and uses a parametric function to compute capillary rise from a shallow watertable. The application refers to three years of field observations, 2008 with high rainfall and higher watertable, 2009 with low rainfall and lower watertable, and 2011 with average rainfall and watertable conditions. Model calibration and validation were performed comparing simulated against observed soil water content throughout the vegetation seasons, with regression coefficients close to 1.0 and small root mean square errors (RMSE < 0.013 cm3 cm−3). The groundwater contribution represented 41–47% of the actual ETc in the higher rainfall year and 56–59% in the dry year, which clearly shows the role of groundwater in sustaining grasslands in the Horqin steppe. The ratio between transpiration and actual ETc ranged 88 to 94%, which is much higher than observations in other grasslands because capillary rise contributes to extraction by crop roots, not to soil evaporation. Simulations relative to lowering the watertable show that groundwater contribution decreases up to 25% for a dry year with a consequent decrease of transpiration of 24%. Hence, there is the need for developing appropriate groundwater protection measures to preserve the Horqin landscape. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Ecohydrology of groundwater‐dependent grasslands of the semi‐arid Horqin sandy land of inner Mongolia focusing on evapotranspiration partition

Liu

Paredes

et al. 2015

Ecohydrology

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“…The remaining variables keep their meaning as explained above. It has been shown that during winter the difference between potential and actual evapotranspiration is negligible (Wessolek et al, 2011). Hence, from Eq.…”

Section: Resultsmentioning

confidence: 93%

“…To facilitate matters, hydropedotransfer functions (HPTF) have been developed, which relate easily available site information and meteorological data to required results. Recently, Wessolek et al (2008Wessolek et al ( , 2011 have shown that HPTF are valuable tools to predict annual percolation rates on a regional scale. Unfortunately, it is risky to use stochastic methods outside the range of conditions where they were developed.…”

Section: Introductionmentioning

confidence: 99%

Spectral estimation of wetland carbon dioxide exchange

Chojnicki¹

2013

International Agrophysics

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The simultaneous measurements of broadband normalized difference vegetation index and net ecosystem production were carried out at Rzecin wetland in 2009. Additionally, carbon fluxes, ecosystem respiration and gross ecosystem production were estimated on the basis of measured net ecosystem production values. The maximum broadband normalized difference vegetation index value (0.73) was measured on the 6th of July. The minimum broadband normalized difference vegetation index value measured before and after the vegetation period was 0.40. The annual dynamics of carbon fluxes and broadband normalized difference vegetation index runs were different from each other. During the second half of vegetation period greenness of plants decreases more slowly than plants carbon dioxide uptake capacity. These differences are likely to be determined by plants aging. The results presented in this paper show potential applicability of broadband normalized difference vegetation index for the estimation of carbon dioxide exchange in wetlands.

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“…Here the soils become Accumulation of metals and salts have been observed and modelled in other settings with similar shallow groundwaters and higher evaporative loss via capillary rise (e.g., Carlisle,1983;Nicker and McCarthy, 2003;Wessolek et al, 2011;Mikhailov et al, 2020).…”

Section: Geochemical Controls Of Elemental Mobility In Agricultural V...mentioning

confidence: 96%

Mobility of trace elements underneath irrigated agricultural fields: implication of dryland soil and water quality along the Rio Grande Valley

Sosa

Engle

2023

Preprint

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Trace elements are loaded to agricultural soils through irrigation, application of pesticides and fertilizers, potentially deteriorating soil quality, and contaminating underlying groundwater resources. In western Texas along the Rio Grande valley, cropland is developed on floodplain sediments of different particle sizes, where intensive irrigation mobilizes the salts, nutrients and trace elements from the agricultural fields. This study focuses on seven trace elements (As, Pb, P, Zn, V, B, and Fe) in soils and natural waters at a pecan orchard in Tornillo, Texas, to understand their geochemical behaviors and toxicity. Soluble forms of these trace elements were predominantly loaded onto soils through irrigation water. Soil amendments also contributed, and were important sources for nutrients Zn and P. Trace element sequestration was examined through sequential extraction, and the acid leachable fractions of soil samples contained much higher concentrations than water leachable salt fractions, suggesting co-precipitation with secondary carbonate and Al/Fe oxyhydroxide phases. Solubility of V and Fe are controlled by redox conditions, and dictated by flood irrigation events and thus fluctuations in groundwater table. Above soils of finer particles, where water infiltration is limited, and salts and pedogenic carbonates mostly accumulate, trace elements also become concentrated, without draining to the shallow groundwater and drainage canals. The trace element concentrations in shallow groundwaters were variable, but generally much lower for P and much higher for Zn than those in irrigation waters or soil waters. Natural soils have surprisingly high concentrations of trace elements, even more so than some agricultural soils, probably due to movement of solutes from shallow groundwaters via the capillary force over much longer timescales under dryland conditions. This interpretation is supported by the finer particle sizes observed at the bottom of the natural soil core. Our study highlights that irrigation has modified the water dynamics, the geochemical conditions, and thus the mobility versus retention of trace elements in soils.

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Development of hydro-pedotransfer functions to predict capillary rise and actual evapotranspiration for grassland sites

Cited by 11 publications

References 8 publications

Ecohydrology of groundwater‐dependent grasslands of the semi‐arid Horqin sandy land of inner Mongolia focusing on evapotranspiration partition

Ecohydrology of groundwater‐dependent grasslands of the semi‐arid Horqin sandy land of inner Mongolia focusing on evapotranspiration partition

Spectral estimation of wetland carbon dioxide exchange

Mobility of trace elements underneath irrigated agricultural fields: implication of dryland soil and water quality along the Rio Grande Valley

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