Atlas hydrogéologique de l'Abitibi-Témiscamingue

Cloutier, Vincent; Rosa, Éric; Roy, Magalie; Nadeau, Simon; Blanchette, Daniel; Dallaire, Pierre-Luc

doi:10.2307/j.ctt1f117rt

Cited by 6 publications

(16 citation statements)

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Section: Methodsmentioning

confidence: 99%

“…Ultimately, the results allow discussing the hydrological functions of peatlands and proposing land management strategies oriented towards the protection of peatland hydrodiversity . The approach described here stems from the previous work of Cloutier et al (, ).…”

Section: Introductionmentioning

confidence: 99%

“…SG = sand/gravel vertex; BT = bedrock/till vertex; SC = silt/clay vertex; O = outflow vertex; F = flow through vertex; L lacustrine/riverine vertex; RHU = regional hydrogeological unit. Adapted fromCloutier et al (2015Cloutier et al ( , 2016; reproduced by permission of the Presses de l'Université du QuébecTABLE1 Groups of units proposed for classifying peatland complexes according to their position within the hydrogeological environment Proposed vertices Description Hydrogeological units A and B (bedrock/till) RHU-A and RHU-B as identified in Figures 2 and 3.…”

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confidence: 99%

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A graphical approach for documenting peatland hydrodiversity and orienting land management strategies

Rosa

Dallaire

Nadeau

et al. 2018

Hydrological Processes

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This study focuses on the development of an approach to document the hydrological characteristics of peatlands and understand their potential influence on runoff processes and groundwater flow dynamics. Spatial calculations were performed using geographic information systems data in order to evaluate the distribution of peatlands according to (a) neighbouring hydrogeological units and (b) their position within the hydrographic network. The data obtained from these calculations were plotted in a multiple trilinear diagram (two ternary plots projected into a diamond‐shaped diagram) that illustrates the position of a given peatland within the hydrogeological environment. The data allow for the segregation of peatlands according to groups sharing similarities as well as the identification of peatlands that are most likely to have similar hydrological functions. The approach was tested in a 19,549 km2 region of the southern portion of the Barlow‐Ojibway Clay Belt (in Abitibi‐Témiscamingue, Canada) and lead to a conceptual model representing the hydrological interactions between peatlands, aquifers, and surface waters. This approach allows for a geographic information systems‐based differentiation of headwater peatland complexes that are likely to interact with aquifers and to supply continuous baseflow to small streams from lowland peatland complexes of the clay plain that are isolated from surrounding aquifers but that can act as storage reservoirs within the hydrographic network. The typology is further used to discuss land management strategies aimed at preserving peatland hydrodiversity within the study region. The proposed approach relies on widely applicable hydrogeological and hydrographic criteria and provides a tool that could be used for assessing peatland hydrodiversity in other regions of the planet.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A graphical approach for documenting peatland hydrodiversity and orienting land management strategies

Rosa

Dallaire

Nadeau

et al. 2018

Hydrological Processes

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“…However, these shallow unconfined aquifers are highly vulnerable to contamination and face increasing human pressures such as forest operations, sand and gravel extraction, former in-trench disposal sites, private and municipal wells and commercial water bottling (MRNF 2006;Nadeau et al 2015;Cloutier et al 2016). The impacts on the groundwater resources associated with eskers might also affect aquifers located down-gradient, further highlighting the need to better understand regional hydrogeological processes.…”

Section: Introductionmentioning

confidence: 99%

“…1987), snow and ice-melting (Siegel and Mandle 1984), evaporation processes in cold regions (Gat et al 1994) and drylands (Kebede et al 2009), sources mixing (Ferguson et al 2007;Wolfe et al 2007) and groundwater recharge (Praamsma et al 2009), among other applications. Cloutier et al (2013;2016) provided a comprehensive assessment of groundwater resources in the Abitibi-Témiscamingue region, within the framework of the Programme d'Acquisition de Connaissances sur les Eaux Souterraines (PACES) supported by the Quebec Ministry of the Environment. A regional scale conceptual hydrogeological model representing regional flowpaths from unconfined aquifers, located in recharge areas, to confined aquifers, found beneath the clay belt, was proposed through the course of these studies.…”

Section: Introductionmentioning

confidence: 99%

Using water stable isotopes for tracing surface and groundwater flow systems in the Barlow-Ojibway Clay Belt, Quebec, Canada

Rey

Rosa

Cloutier

et al. 2017

Canadian Water Resources Journal / Revue canadienne des ressour

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This study aims to improve the understanding of surface and groundwater flow systems based on water stable isotopes data in a 19,549 km 2 region of the Barlow-Ojibway Clay Belt, in western Quebec, Canada. The available geochemical database contains 645 samples including precipitation, snow cores, surface waters, groundwater and springs. All samples were analyzed for water stable isotopes (δ 2 H-δ 18 O) and complementary tritium analyses were conducted on 98 groundwater and spring samples.Precipitations depict a clear temperature-dependent seasonal pattern and define a local meteoric water line (LMWL) without a latitudinal trend in δ 2 H-δ 18 O. Samples collected from the snowpack plot on the LMWL, suggesting that the bulk snowpack preserves the isotopic composition of precipitation throughout the frozen period, prior to the spring snowmelt. Surface water samples define a local evaporation line (LEL) and evaporation over inflow (E/I) ratios range between 0% and 36%. Groundwater and springs samples are evenly distributed around the LMWL, suggesting that evaporation processes are limited prior to infiltration and that surface waters do not significantly contribute to groundwater recharge. Shallow unconfined aquifers present a greater variability in δ 2 Hδ 18 O compared to confined aquifers located further down gradient, suggesting the mixing of varied recharge waters along the regional groundwater flow system. A threecomponent mixing model based on isotopic and specific electrical conductivity data allows the quantification of such mixing processes. The interpretation of isotopic data constrains a regional-scale conceptual model of groundwater flow systems and describes processes related to the timing of recharge, evaporation, mixing and discharge.

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Spatial analysis approaches for the evaluation and protection of groundwater resources in large watersheds of the Canadian Shield

et al. 2021

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Atlas hydrogéologique de l'Abitibi-Témiscamingue

Cited by 6 publications

References 0 publications

A graphical approach for documenting peatland hydrodiversity and orienting land management strategies

A graphical approach for documenting peatland hydrodiversity and orienting land management strategies

Using water stable isotopes for tracing surface and groundwater flow systems in the Barlow-Ojibway Clay Belt, Quebec, Canada

Spatial analysis approaches for the evaluation and protection of groundwater resources in large watersheds of the Canadian Shield

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