Effects of long‐term irrigation with treated wastewater on the hydraulic properties of a clayey soil

Assouline, S.; Narkis, Kfir

doi:10.1029/2011wr010498

Cited by 60 publications

(74 citation statements)

References 54 publications

(78 reference statements)

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“…To the knowledge of the authors, this study is the first to compare the unsaturated HC of clayey soils irrigated with FW and TWW on adjacent test sites in-situ. Assouline and Narkis (2011) applied the MDI in a column study with disturbed clayey soil samples from a TWW-and FW-irrigated test site and showed lower infiltration rates for the TWW-irrigated samples. Vogeler (2009), using disc permeameters, calculated the HC of wastewater and TWW disposal sites and adjacent non-irrigated areas on sandy loam (site Taupo, T) and loamy sand (site Levin, L).…”

Section: Discussionmentioning

confidence: 99%

Treated wastewater irrigation effects on soil hydraulic conductivity and aggregate stability of loamy soils in Israel

Schacht

Marschner

2015

Journal of Hydrology and Hydromechanics

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Abstract:The use of treated wastewater (TWW) for agricultural irrigation becomes increasingly important in water stressed regions like the Middle East for substituting fresh water (FW) resources. Due to elevated salt concentrations and organic compounds in TWW this practice has potential adverse effects on soil quality, such as the reduction of hydraulic conductivity (HC) and soil aggregate stability (SAS). To assess the impact of TWW irrigation in comparison to FW irrigation on HC, in-situ infiltration measurements using mini disk infiltrometer were deployed in four different long-term experimental orchard test sites in Israel. Topsoil samples (0-10 cm) were collected for analyzing SAS and determination of selected soil chemical and physical characteristics.The mean HC values decreased at all TWW sites by 42.9% up to 50.8% compared to FW sites. The SAS was 11.3% to 32.4% lower at all TWW sites. Soil electrical conductivity (EC) and exchangeable sodium percentage (ESP) were generally higher at TWW sites. These results indicate the use of TWW for irrigation is a viable, but potentially deleterious option, as it influences soil physical and chemical properties.

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Section: Discussionmentioning

confidence: 99%

Treated wastewater irrigation effects on soil hydraulic conductivity and aggregate stability of loamy soils in Israel

Schacht

Marschner

2015

Journal of Hydrology and Hydromechanics

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“…The primary risks associated with TE irrigation involve high concentrations of salts, especially sodium, and of organic compounds (Feigin et al, 1991; Balks et al, 1998; Hamilton et al, 2007; Pedrero et al, 2010). Recent studies have shown that long‐term effects of TE irrigation resulted in a significant degradation of soil structure and hydraulic properties due to increased exchangeable sodium percentage (Leij et al, 2004; Lado et al, 2005; Assouline and Narkis, 2011, 2013; Levy et al, 2011). Evidence from other studies have shown other negative effects related to chemical aspects (Xiong et al, 2001; Wallach et al, 2005; Lado et al, 2012), as well as human health and other ecological risks associated with introduction of pathogenic microorganisms, heavy metals, and toxic organic compounds into the soil and crop (Toze, 2006; Pedrero et al, 2010; Scheierling et al, 2010; del Mar Alguacil et al, 2012).…”

Section: Modeling Soil Supporting and Degrading Processesmentioning

confidence: 99%

Modeling Soil Processes: Review, Key Challenges, and New Perspectives

Vereecken

Schnepf

Hopmans

et al. 2016

Vadose Zone Journal

Self Cite

509

392

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The remarkable complexity of soil and its importance to a wide range of ecosystem services presents major challenges to the modeling of soil processes. Although major progress in soil models has occurred in the last decades, models of soil processes remain disjointed between disciplines or ecosystem services, with considerable uncertainty remaining in the quality of predictions and several challenges that remain yet to be addressed. First, there is a need to improve exchange of knowledge and experience among the different disciplines in soil science and to reach out to other Earth science communities. Second, the community needs to develop a new generation of soil models based on a systemic approach comprising relevant physical, chemical, and biological processes to address critical knowledge gaps in our understanding of soil processes and their interactions. Overcoming these challenges will facilitate exchanges between soil modeling and climate, plant, and social science modeling communities. It will allow us to contribute to preserve and improve our assessment of ecosystem services and advance our understanding of climate-change feedback mechanisms, among others, thereby facilitating and strengthening communication among scientific disciplines and society. We review the role of modeling soil processes in quantifying key soil processes that shape ecosystem services, with a focus on provisioning and regulating services. We then identify key challenges in modeling soil processes, including the systematic incorporation of heterogeneity and uncertainty, the integration of data and models, and strategies for effective integration of knowledge on physical, chemical, and biological soil processes. We discuss how the soil modeling community could best interface with modern modeling activities in other disciplines, such as climate, ecology, and plant research, and how to weave novel observation and measurement techniques into soil models. We propose the establishment of an international soil modeling consortium to coherently advance soil modeling activities and foster communication with other Earth science disciplines. Such a consortium should promote soil modeling platforms and data repository for model development, calibration and intercomparison essential for addressing contemporary challenges.

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“…High clay content in the soil could lead to soil swelling during wetting and thus induce dynamic changes in soil porosity and hydraulic properties and consequently affect infiltration [Raats and Klute, 1969;Philip, 1970;Smiles, 1974;Sposito, 1975;Giraldez and Sposito, 1985]. Soil sodicity and electrolyte concentration of the wetting fluid could also have a significant impact on soil hydraulic properties and on the infiltration process [Quirk and Schofield, 1955;McNeal and Coleman, 1966;Bresler et al, 1982;Jury et al, 1991;Russo, 2005;Assouline and Narkis, 2011]. Temporal variability of intensity within the same rainfall event could induce drainage and redistribution to occur simultaneously in the same soil profile.…”

Section: Infiltration Under Special Conditionsmentioning

confidence: 99%

Infiltration into soils: Conceptual approaches and solutions

Assouline

2013

Water Resources Research

196

114

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[1] Infiltration is a key process in aspects of hydrology, agricultural and civil engineering, irrigation design, and soil and water conservation. It is complex, depending on soil and rainfall properties and initial and boundary conditions within the flow domain. During the last century, a great deal of effort has been invested to understand the physics of infiltration and to develop quantitative predictors of infiltration dynamics. Jean-Yves Parlange and Wilfried Brutsaert have made seminal contributions, especially in the area of infiltration theory and related analytical solutions to the flow equations. This review retraces the landmark discoveries and the evolution of the conceptual approaches and the mathematical solutions applied to the problem of infiltration into porous media, highlighting the pivotal contributions of Parlange and Brutsaert. A historical retrospective of physical models of infiltration is followed by the presentation of mathematical methods leading to analytical solutions of the flow equations. This review then addresses the time compression approximation developed to estimate infiltration at the transition between preponding and postponding conditions. Finally, the effects of special conditions, such as the presence of air and heterogeneity in soil properties, on infiltration are considered.

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Effects of long‐term irrigation with treated wastewater on the hydraulic properties of a clayey soil

Cited by 60 publications

References 54 publications

Treated wastewater irrigation effects on soil hydraulic conductivity and aggregate stability of loamy soils in Israel

Treated wastewater irrigation effects on soil hydraulic conductivity and aggregate stability of loamy soils in Israel

Modeling Soil Processes: Review, Key Challenges, and New Perspectives

Infiltration into soils: Conceptual approaches and solutions

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