Conceptualizing a mountain hydrogeologic system by using an integrated groundwater assessment (Serra da Estrela, Central Portugal): a review

Marques, Jorge Espinha; Marques, José Frederico; Chaminé, Helder I.; Carreira, Paulà M.; Fonseca, Paulo E.; Santos, Fernando A. Monteiro; Moura, Rui; Samper, Javier; Pisani, Bruno; Teixeira, José A. Carvalho; Carvalho, José Martins; Rocha, Fernando; Borges, Frederico Sodré

doi:10.1007/s12303-013-0019-x

Cited by 24 publications

(14 citation statements)

References 27 publications

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“…According to Espinha Marques et al [60,61], the dominant soils at the studied sector are: (i) Humic, Leptic, and Skeletic Umbrisols; (ii) Lithic and Umbric Leptosols; (iii) Umbric Fluvisols; and (iv) Rock outcrops. These soils are coarse textured, acidic, with high humified organic matter content, and the typical soil profile is ACR (A: A horizon; C: C horizon; R: hard bedrock) with an umbric A horizon.…”

Section: Hydrogeological Frameworkmentioning

confidence: 99%

“…The conditions of the local hydrogeological cycle conditions are mainly determined by the geological, tectonic, pedological, and climatic features, typical of a Mediterranean mountain region. As for groundwater circulation, fractured media exist in poorly weathered granitic and metasedimentary rocks and porous media are dominant in alluvia and quaternary glacial deposits, as well as in the most weathered granites and metasedimentary rocks [61].…”

Section: Hydrogeological Frameworkmentioning

confidence: 99%

“…This selection was based on hydrogeological research carried out in recent years in Serra da Estrela. For this purpose, the hydrogeological conceptual model presented by Espinha Marques et al [61] was particularly relevant. Then, a map for each factor was generated and the final output consisted of four groundwater vulnerability maps, expressing the results according to the DRASTIC, GOD, SINTACS, and SI methods ( Figure 6).…”

Section: Application Of Gvtool To the Region Of Serra Da Estrelamentioning

confidence: 99%

“…These maps ( Figure 6) are more suitable to represent the overall spatial distribution of groundwater vulnerability in the case of DRASTIC, SINTACS, and SI, and are less appropriate in the case of GOD. In fact, given the hydrogeological conditions of the Manteigas-Torre sector (e.g., Espinha Marques et al [61]) the GOD index map oversimplifies the spatial distribution of groundwater vulnerability, since it represents homogeneous areas encompassing very different conditions (for example, valley bottoms and slopes), which is not realistic. Table 4 presents fundamental statistics for each vulnerability index using the GVTool Map Statistics functionality.…”

Section: Application Of Gvtool To the Region Of Serra Da Estrelamentioning

confidence: 99%

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An Open Source GIS-Based Application for the Assessment of Groundwater Vulnerability to Pollution

2019

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Groundwater is a crucial natural resource for regular socio-economic function. Groundwater vulnerability to pollution can be assessed through Geographical Information System (GIS)-based qualitative methods. GIS-based tools, dedicated to the assessment of groundwater vulnerability, usually present several limitations, such as high cost, unavailable code, and a lack of functionality concerning the flexible application of vulnerability indices and vulnerability map comparison. The objective of this work was to create a new GIS-based open source application for groundwater vulnerability assessment, GVTool, developed using QGIS software, with the capability of creating and comparing groundwater vulnerability maps considering four different methods: DRASTIC, GOD, SINTACS, and Susceptibility Index (SI). This application incorporates features from a previous tool, DRASTIC Model, and new functionalities were included, namely three additional vulnerability assessment methods, map comparative analysis, map statistics, and index interval reclassification and symbology definition. The GVTool functionalities and capabilities are illustrated through a groundwater vulnerability assessment in Serra da Estrela mountain (Central Portugal). GVTool is mostly useful in integrated assessments, helping to verify if the groundwater vulnerability maps are accurate and to decide which is the most suitable method or the combination of methods to express groundwater vulnerability to pollution in a specific area.

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Section: Hydrogeological Frameworkmentioning

confidence: 99%

Section: Hydrogeological Frameworkmentioning

confidence: 99%

Section: Application Of Gvtool To the Region Of Serra Da Estrelamentioning

confidence: 99%

Section: Application Of Gvtool To the Region Of Serra Da Estrelamentioning

confidence: 99%

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An Open Source GIS-Based Application for the Assessment of Groundwater Vulnerability to Pollution

2019

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“…Mountainous volcanic highlands are complex hydrological systems that provide water to 40% of the world's population in lower-lying areas [1][2][3][4]. For example, the Blue Nile, originating in the Ethiopian Highlands, is essential for the survival and well-being of the 130 million people living in Sudan and Egypt [5].…”

Section: Introductionmentioning

confidence: 99%

Hydrogeology of Volcanic Highlands Affects Prioritization of Land Management Practices

Adem

Addis

Aynalem

et al. 2020

Water

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Volcanic highlands supply water to 40% of the world’s population. Soil degradation threatens this water supply. Studies on geohydrology that affect the effectiveness of land and water management (LWM) practices in reducing soil degradations are limited. To aid in the effectiveness of LWM practices, we conducted a field experiment in the Gomit watershed in the semihumid Ethiopian Highlands on the interaction of hydrogeology and LWM practices. We found that in a watershed with strongly faulted tertiary basalt, 30% of the rainfall was drained through faults to another basin. Consequently, the discharge at the outlet was less than half of that of other watersheds with quaternary basalts. Despite the high sediment concentration, i.e., around 15 g L−1, in the Gomit watershed, the sediment yield of less than 4 Mg ha−1 a−1 was below average for the agricultural watershed in Ethiopia because of the low runoff response. While some faults facilitated drainage, others acted as a barrier. Groundwater stored behind the barriers was used as a municipal potable water source. Since the effectiveness of LWM practices depends on the amount of erosion that can be prevented, considerations of country-wide prioritizing of investments in land and water management practices should include the geology of the watersheds.

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Hydrogeology and groundwater management in a coastal granitic area with steep slopes in Galicia (Spain)

et al. 2021

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Groundwater availability, management and protection are great challenges for the sustainability of groundwater resources in the scattered rural areas of the Atlantic regions of Europe where groundwater is the only option for water supply. This report presents a hydrogeological study of the coastal granitic area of Oia in northwestern Spain, which has unique geomorphological and hydrogeological features with steep slopes favoring the erosion of the weathered granite. The hydrogeological conceptual model of the study area includes: (1) the regolith layer, which is present only in the flat summit of the mountains; (2) the slope debris and the colluvial deposits, which are present in the intermediate and lowest parts of the hillside; (3) the marine terrace; and (4) the underlying fractured granite. Groundwater recharge from rainfall infiltration varies spatially due to variations in terrain slope, geology and land use. The mean annual recharge estimated with a hydrological water balance model ranges from 75 mm in the steepest zone to 135 mm in the lowest flat areas. Groundwater flows mostly through the regolith and the detrital formations, which have the largest hydraulic conductivities. Groundwater discharges in seepage areas, springs, along the main creeks and into the sea. The conceptual hydrogeological model has been implemented in a groundwater flow model, which later has been used to select the best pumping scenario. Model results show that the future water needs for domestic and tourist water supply can be safely provided with eight pumping wells with a maximum pumping rate of 700 m3/day.

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Conceptualizing a mountain hydrogeologic system by using an integrated groundwater assessment (Serra da Estrela, Central Portugal): a review

Cited by 24 publications

References 27 publications

An Open Source GIS-Based Application for the Assessment of Groundwater Vulnerability to Pollution

An Open Source GIS-Based Application for the Assessment of Groundwater Vulnerability to Pollution

Hydrogeology of Volcanic Highlands Affects Prioritization of Land Management Practices

Hydrogeology and groundwater management in a coastal granitic area with steep slopes in Galicia (Spain)

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