2010
DOI: 10.1007/s12665-010-0759-0
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Large tank experiment on nitrate fate and transport: the role of permeability distribution

Abstract: A long-term elution experiment to study the saturated transport of pre-accumulated fertilizers by-products, was conducted within a large tank (4 x 8 x 1.4 m) equipped with 26 standard piezometers. Sandy sediments (35 m(3)), used to fill the tank, were excavated from an unconfined alluvial aquifer near Ferrara (Northern Italy); the field site was connected to a pit lake located in a former agricultural field. To evaluate spatial heterogeneity, the tank's filling material was characterized via slug tests and gra… Show more

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Cited by 29 publications
(17 citation statements)
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“…In the FP, the unconfined aquifer texture is sand and silty-sand, with higher spatial heterogeneity due to the presence of palaeochannels and alluvial fans interconnected with alluvial fan and marsh lagoon environments (Amorosi et al 2003). The unconfined aquifer thickness usually ranges between 2 and 7 m, but in some cases may exceed 45 m (Mastrocicco et al 2011b). The water table depth ranges between 0.5 and 5.5 m below ground level (b.g.l.).…”
Section: Methodsmentioning
confidence: 99%
“…In the FP, the unconfined aquifer texture is sand and silty-sand, with higher spatial heterogeneity due to the presence of palaeochannels and alluvial fans interconnected with alluvial fan and marsh lagoon environments (Amorosi et al 2003). The unconfined aquifer thickness usually ranges between 2 and 7 m, but in some cases may exceed 45 m (Mastrocicco et al 2011b). The water table depth ranges between 0.5 and 5.5 m below ground level (b.g.l.).…”
Section: Methodsmentioning
confidence: 99%
“…In coastal zones, multilayer sampling is critically important to define the vertical distribution of salinity [51], while the determination of groundwater residence time [52] could further increase the effectiveness of MAR application. Although the SuSAM index was developed to be compatible with a coastal hydrogeological environment, parameters of agricultural activities and nitrate pollution could be included in the method with the aim of reducing nitrate pollution [53]. An expanded DSS-MAR system could include agricultural planning [54] and groundwater vulnerability maps, which are useful tools for groundwater management [55].…”
Section: Mar Suitability Map and Validation Of The Indexmentioning
confidence: 99%
“…It is worth mentioning that the permeability of the vadose zone has been obtained by lithological profiles in this study. In the literature, it is clear that the permeability influences the nitrate and ammonium transport [31][32][33] as well as the organic matter [34], which is not considered in DRASTIC method. Nevertheless, the pollution risk map overcomes this drawback, increasing the correlation with nitrate concentrations and hence the reliability of the map.…”
Section: Groundwater Vulnerability and Risk Mappingmentioning
confidence: 99%