The genesis and the hydrogeological features of the Turin Po Plain fontanili, typical lowland springs in Northern Italy

Luca, Domenico De; Destefanis, Enrico; Forno, Maria Gabriella; Lasagna, Manuela; Masciocco, Luciano

doi:10.1007/s10064-013-0527-y

Cited by 32 publications

(31 citation statements)

References 9 publications

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“…In other pre-alpine areas in the ecoregion 8, groundwater flow from the Alpine basement makes a noteworthy contributes to the maintenance of highly characteristic spring areas (König 2006;Gerecke and Mauch 2011;De Luca et al 2014). Springs in these landscapes are characterized by the coexistence of Alpine species at the northern border of their distribution, such as the water mite Lebertia giardinai (Maglio, 1908), and typical lowland species, for example the snail Bythinella bavarica (Clessin, 1877).…”

Section: Hesse and Thuringia Germany (Central Highlands)mentioning

confidence: 99%

Limno-ecological characteristics and distribution patterns of spring habitats and invertebrates from the Lowlands to the Alps

et al. 2016

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Springs are autochthonous aquatic ecotones with complex functional properties and heterogeneous ecomorphological structures. Within a small spatial extent, invertebrates are highly diverse and mainly composed of species adapted to the surface-subterranean water interface, the aquatic-terrestrial interface or to the spring habitat itself. In this publication, a first synopsis of limnoecological case studies of springs from the Lowlands of Schleswig-Holstein, the low mountain ranges of Hesse and Thuringia, the pre-Alps of the Jura Mountains in Switzerland and the Alps in Germany and Switzerland is presented. The field surveys conducted in the different areas focus on an ecological assessment of spring habitats, distribution patterns of the invertebrate fauna and specific regional characteristics. A regional faunistic differentiation of spring-related invertebrate species is evident. A change in the faunistic composition in general and a loss of crenobionts owing to climatic and land-use changes are expected. In addition, it should be noted that long-term monitoring data required to make reliable statements about future developments in the distribution of spring species and to predict habitat conditions are not available.

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Section: Hesse and Thuringia Germany (Central Highlands)mentioning

confidence: 99%

Limno-ecological characteristics and distribution patterns of spring habitats and invertebrates from the Lowlands to the Alps

et al. 2016

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“…2) and the Quaternary alluvial deposits unit (f and g in Fig. 2) (Bortolami et al 1976;Bove et al 2005;De Luca et al 2007, 2014Castagna et al 2015aCastagna et al , 2015b. The shallow unconfined aquifer exists in the Quaternary alluvial deposits unit (Middle Pleistocene-Holocene), which is characterised by coarse gravel and sand with subordinate silty-clayey intercalations.…”

Section: Site Descriptionmentioning

confidence: 99%

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

Lasagna

Luca

2016

Environ Sci Pollut Res

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Nitrate is a worldwide pollutant in aquifers. Shallow aquifer nitrate concentrations generally display vertical stratification, with a maximum concentration immediately below the water level. The concentration then gradually decreases with depth. Different techniques can be used to highlight this stratification. The paper aims at comparing the advantages and limitations of three open hole multilevel sampling techniques (packer system, dialysis membrane samplers and bailer), chosen on the base of a literary review, to highlight a nitrate vertical stratification under the assumption of (sub)horizontal flow in the aquifer. The sampling systems were employed at three different times of the year in a shallow aquifer piezometer in northern Italy. The optimal purge time, equilibration time and water volume losses during the time in the piezometer were evaluated. Multilevel techniques highlighted a similar vertical nitrate stratification, present throughout the year. Indeed, nitrate concentrations generally decreased with depth downwards, but with significantly different levels in the sampling campaigns. Moreover, the sampling techniques produced different degrees of accuracy. More specifically, the dialysis membrane samplers provided the most accurate hydrochemical profile of the shallow aquifer and they appear to be necessary when the objective is to detect the discontinuities in the nitrate profile. Bailer and packer system showed the same nitrate profile with little differences of concentration. However, the bailer resulted much more easier to use.

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“…The hydraulic gradient of the shallow aquifer varies, in the northern sector of the Turin-Cuneo plain (Turin Plain), between 3%, e.g., at the edge of the Alps and 0.1% in the low plain. Along the transitional zone from the higher to lower plain, the hydraulic gradient decrease from 0.6% to inferior than 0.3% values; this sector, in which typical lowland springs (fontanili) emerge (De Luca et al 2009;De Luca et al 2014), is called fontanili line. In the centre of the Turin-Cuneo plain, the hydraulic gradient normally ranges between 0.01% in the central sector and 0.25% near the Alps.…”

Section: Hydrogeological Setting and Land Usementioning

confidence: 99%

Evaluation of sources and fate of nitrates in the western Po plain groundwater (Italy) using nitrogen and boron isotopes

Lasagna

Luca

2017

Environ Sci Pollut Res

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Diffuse nitrate pollution in groundwater is currently considered one of the major causes of water quality degradation. Determining the sources of nitrate contamination is an important first step for a better management of water quality. Thus, the isotopic composition of nitrate (δN and δO) and boron (δB) were used to evaluate nitrate contamination sources and to identify geochemical processes occurring in the shallow and deep aquifers of the Turin-Cuneo plain (NW Italy). The study area is essentially an agricultural zone, where use of synthetic nitrogenous fertilizers and organic manure is a common practice and the connection to sewer services is locally lacking. Also livestock farming are highly developed. A groundwater sampling campaign was performed on 34 wells in the shallow aquifer and 8 wells in the deep aquifers, to analyze nitrate, chloride, boron, δN, δO and δB. Isotope data of nitrate indicate that nitrate contamination in the Turin-Cuneo plain originates from mixtures of synthetic and organic sources, slightly affected by denitrification, and manure or septic tank effluents. Moreover, boron isotopes were used to discriminate further among the main anthropogenic sources of pollution. The analyses results confirm that both animal manure and domestic sewage, especially under the city of Turin, can contribute to the nitrate contamination. The isotope analysis was also used for the evaluation of denitrification and nitrification processes: contrary to expectations, a significant denitrification phenomenon was assessed only in the shallow unconfined aquifer, especially in the Poirino Plateau, the most contaminated sector of the study area.

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The genesis and the hydrogeological features of the Turin Po Plain fontanili, typical lowland springs in Northern Italy

Abstract: Questa è la versione dell'autore dell'opera:The genesis and the hydrogeological features of the Turin Po Plain fontanili, typical lowland springs in Northern Italy,

Cited by 32 publications

References 9 publications

Limno-ecological characteristics and distribution patterns of spring habitats and invertebrates from the Lowlands to the Alps

Limno-ecological characteristics and distribution patterns of spring habitats and invertebrates from the Lowlands to the Alps

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

Evaluation of sources and fate of nitrates in the western Po plain groundwater (Italy) using nitrogen and boron isotopes

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