Evapotranspiration and its partitioning in an irrigated winter wheat field: A combined isotopic and micrometeorologic approach

Zhang, Yucui; Shen, Yanjun; Sun, Hang; Gates, John B.

doi:10.1016/j.jhydrol.2011.07.036

Cited by 110 publications

(82 citation statements)

References 38 publications

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“…This enrichment is caused by kinetic effects of diffusion (Barnes and Turner, 1998;Clark and Fritz, 1997). Zhang et al (2011) also show that the evaporation depth is approximately 20 cm. The shape from the surface to 20 cm depth is performed by vapor diffusion, and the shape from below 20 cm depth is caused by downward diffusion of isotopes.…”

Section: Isotopic Composition Of Soil Watermentioning

confidence: 97%

“…Some studies (e.g. Herbst et al, 1996;Ferretti et al, 2003;Yepez et al, 2003;Robertson and Gazis, 2006;Roupsard et al, 2006;Xu et al, 2008;Wang et al, 2010;Wenninger et al, 2010;Zhang et al, 2011) including the FAO crop model calculated that the percentage of transpiration from total evaporation is more or less 70 %. The results from both isotope mass balance and HYDRUS-1D model are comparable which are 77.7 % and 64.1 % for isotope mass balance and HYDRUS-1D, respectively.…”

Section: Evaporation Analysismentioning

confidence: 99%

“…In the last decade, partitioning of total evaporation into soil evaporation and transpiration using stable isotopes was studied by Yepez et al (2003Yepez et al ( , 2005; Williams et al (2004); Robertson and Gazis (2006); Xu et al (2008); Rothfuss et al (2010); Wang et al (2010Wang et al ( , 2012a; Wenninger et al (2010); Zhang et al (2010Zhang et al ( , 2011. Williams et al (2004) used the combination of eddy covariance, sapflow, and stable isotope measurements in an irrigated olive orchard, in Morocco.…”

Section: Introductionmentioning

confidence: 99%

“…An isotope mass balance method has been used to partition evaporation into soil evaporation and transpiration and is useful to estimate the contribution of evaporation and transpiration during different hydrologic seasons (Ferretti et al, 2003;Robertson and Gazis, 2006;Wenninger et al, 2010). Zhang et al (2011) partitioned evaporation into soil evaporation and transpiration using a combined isotopic and micrometeorologic approach. The latest technique to quantify the transpiration flux was introduced by Wang et al (2012a).…”

Section: Introductionmentioning

confidence: 99%

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Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Sutanto

Wenninger

Coenders-Gerrits

et al. 2012

Hydrol. Earth Syst. Sci.

177

117

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Abstract. Knowledge of the water fluxes within the soilvegetation-atmosphere system is crucial to improve water use efficiency in irrigated land. Many studies have tried to quantify these fluxes, but they encountered difficulties in quantifying the relative contribution of evaporation and transpiration. In this study, we compared three different methods to estimate evaporation fluxes during simulated summer conditions in a grass-covered lysimeter in the laboratory. Only two of these methods can be used to partition total evaporation into transpiration, soil evaporation and interception. A water balance calculation (whereby rainfall, soil moisture and percolation were measured) was used for comparison as a benchmark. A HYDRUS-1D model and isotope measurements were used for the partitioning of total evaporation. The isotope mass balance method partitions total evaporation of 3.4 mm d −1 into 0.4 mm d −1 for soil evaporation, 0.3 mm d −1 for interception and 2.6 mm d −1 for transpiration, while the HYDRUS-1D partitions total evaporation of 3.7 mm d −1 into 1 mm d −1 for soil evaporation, 0.3 mm d −1 for interception and 2.3 mm d −1 for transpiration. From the comparison, we concluded that the isotope mass balance is better for low temporal resolution analysis than the HYDRUS-1D. On the other hand, HYDRUS-1D is better for high temporal resolution analysis than the isotope mass balance.

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Section: Isotopic Composition Of Soil Watermentioning

confidence: 97%

Section: Evaporation Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Sutanto

Wenninger

Coenders-Gerrits

et al. 2012

Hydrol. Earth Syst. Sci.

177

117

View full text Add to dashboard Cite

show abstract

“…Water cycling in the Soil-Plant-Atmosphere-Continuum (SPAC) is one of the foundations of water-saving agriculture. In recent decades, there has been increasing focus on the interactions among precipitation and soil, plant, atmospheric, and ground water (Philip, 1966;Liu, 1997;Kang et al, 2000;Wang et al, 2009;Zhang et al, 2011a). However, it is very difficult to quantify the water fluxes of evaporation, transpiration, and drainage through the SPAC interfaces, and estimating these fluxes is essential to improve crop water use efficiency.…”

Section: Introductionmentioning

confidence: 99%

Using stable isotopes to determine seasonal variations in water uptake of summer maize under different fertilization treatments

Song

2016

Science of The Total Environment

100

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δ²H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down

et al. 2014

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The partitioning of surface vapor flux (F ET ) into evaporation (F E ) and transpiration (F T ) is theoretically possible because of distinct differences in end-member stable isotope composition. In this study, we combine high-frequency laser spectroscopy with eddy covariance techniques to critically evaluate isotope flux partitioning of F ET over a grass field during a 15 day experiment. Following the application of a 30 mm water pulse, green grass coverage at the study site increased from 0 to 10% of ground surface area after 6 days and then began to senesce. Using isotope flux partitioning, transpiration increased as a fraction of total vapor flux from 0% to 40% during the green-up phase, after which this ratio decreased while exhibiting hysteresis with respect to green grass coverage. Daily daytime leaf-level gas exchange measurements compare well with daily isotope flux partitioning averages (RMSE 5 0.0018 g m 22 s 21 ). Overall the average ratio of F T to F ET was 29%, where uncertainties in Keeling plot intercepts and transpiration composition resulted in an average of uncertainty of $5% in our isotopic partitioning of F ET . Flux-variance similarity partitioning was partially consistent with the isotope-based approach, with divergence occurring after rainfall and when the grass was stressed. Over the average diurnal cycle, local meteorological conditions, particularly net radiation and relative humidity, are shown to control partitioning. At longer time scales, green leaf area and available soil water control F T /F ET . Finally, we demonstrate the feasibility of combining isotope flux partitioning and flux-variance similarity theory to estimate water use efficiency at the landscape scale.

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Evapotranspiration and its partitioning in an irrigated winter wheat field: A combined isotopic and micrometeorologic approach

Cited by 110 publications

References 38 publications

Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Using stable isotopes to determine seasonal variations in water uptake of summer maize under different fertilization treatments

δ²H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down

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Evapotranspiration and its partitioning in an irrigated winter wheat field: A combined isotopic and micrometeorologic approach

Cited by 110 publications

References 38 publications

Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Partitioning of evaporation into transpiration, soil evaporation and interception: a comparison between isotope measurements and a HYDRUS-1D model

Using stable isotopes to determine seasonal variations in water uptake of summer maize under different fertilization treatments

δ2H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down

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δ²H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down