Anthropogenic impacts on mineral weathering: A statistical perspective

Pacheco, Fernando António Leal; Landim, Paulo Milton Barbosa; Szőcs, Teodóra

doi:10.1016/j.apgeochem.2013.06.012

Cited by 50 publications

(19 citation statements)

References 40 publications

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“…The summary of the total dataset used for the PCV plot is depicted in Table S2 in the Supplementary Material. The complete dataset from the Excel worksheet was prepared in the ArcMap [45] computer package, which is increasingly used in many hydrologic and environmental studies (e.g., [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65]). The PCV plot is a graphical user interface tool (available in Excel using the XLSTAT statistical software) that analyzes the dissimilarities between grouped objects, resulting in a dendrogram, which shows the following data grouping within the suitable number of geological groups.…”

Section: Resultsmentioning

confidence: 99%

A New Framework for the Management and Radiological Protection of Groundwater Resources: The Implementation of a Portuguese Action Plan for Radon in Drinking Water and Impacts on Human Health

Martins

Pereira

Oliveira

et al. 2019

Water

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In general, this study was developed to assess the radon contamination in groundwater intended for human consumption, to raise awareness among policy-makers to implement a legal framework for drinking water management and the radiological protection of groundwater resources. Thus, we analyzed with parallel coordinate visualization (PCV) plots what features may influence the water–rock interaction and promote high-radon concentrations in water intended for human consumption. The results show that in granitic areas composed by biotite granites (Group V), although there is a higher radon production in the rocks, the radon transfer to groundwater was not effective, mainly due to the physical and chemical properties of the water. The main conclusions show that in all springs sampled (n = 69) for the entire study area, there are only four springs that must have an immediate intervention, and 22 of them are above the limit imposed by the Portuguese legislation. These results are intended to promote a Portuguese Action Plan for Radon that can be framed in the guidelines on the management and protection of groundwater resources.

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Section: Resultsmentioning

confidence: 99%

A New Framework for the Management and Radiological Protection of Groundwater Resources: The Implementation of a Portuguese Action Plan for Radon in Drinking Water and Impacts on Human Health

Martins

Pereira

Oliveira

et al. 2019

Water

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“…The strong correlation between organic matter content and pH made it impossible to identify the effects that these other factors may have separately on Si solubility. Similarly, silicate weathering may be enhanced by the production of nitric acid after N fertilizer application (Pacheco et al, 2013). A follow-up study that focuses on separating the effects of these different dissolving agents (e.g.…”

Section: Differences In Dsi Dissolution Ratesmentioning

confidence: 99%

Factors controlling Si export from soils: A soil column approach

Ronchi

Barão

Clymans

et al. 2015

CATENA

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The release of dissolved silicon (DSi) from A and B horizons was investigated with leaching tests on unsaturated columns. As forest A horizons have larger biogenic Si (BSi) pools than arable lands, we compared the Si release from a forest and a cropland from the same geographical region developed on a Luvisol in Belgium and a Cambisol in Sweden. The A horizons released a quickly dissolving Si fraction in contrast to the B horizons, which did contain no or only little amounts of BSi and released lower Si concentrations. Our experiments show that Si export from forest soils is high because of the presence of a large reservoir of soluble BSi as well as due to the acidity of the soil (pH b 4). Leaching at two different water fluxes revealed that export in forest soils was transport controlled while cropland soils were in equilibrium.

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“…The GIS database was operated by the IDRISI Selva software (Eastman, 2012; http://www.clarklabs.org). In the most recent years, GIS computer packages became widely used in a vast range of environmental applications (Pacheco and Landim, 2005;Pacheco and Van der Weijden, 2012a,b;Pacheco and Van der Weijden, 2014a,b;Pacheco et al, 2013Pacheco et al, , 2015aSanches Fernandes et al, 2012;Santos et al, 2014Santos et al, , 2015a.…”

Section: Databases and Softwarementioning

confidence: 99%

A legal framework with scientific basis for applying the ‘polluter pays principle’ to soil conservation in rural watersheds in Brazil

et al. 2017

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The "polluter pays principle" (PPP) has been looked at from the perspective of legal values and technical principles, namely of soil science, to evaluate the acceleration of soil erosion and the consequent development of degraded areas in the Uberaba River basin (area: 2419 km 2), state of Minas Gerais, Brazil. Having accomplished this goal, the study highlights the importance of PPP for the conservation of soil and development of an ecologically equilibrated environment. The diagnosis of degraded areas was based on the coupling of a Geographic Information System with soil loss, land use conflict and tolerance to soil loss models, and revealed a preoccupying situation because an extension of approximately 905 km 2 (1/3 of the basin) has been considered in advanced state of degradation potentially causing environmental damage (e.g., decline of soil fertility and hence crop production, negative impacts of soil particles export on stream and lake water quality and biodiversity of riverine ecosystems). Facing this problem, a legal framework standing on doctrinaire principles, federal laws and the Brazilian Constitution has been proposed whereby the protagonists of soil degradation are called to assume responsibility as well as the costs of repairing this negative condition. Although the study has been carried out on a specific country under pre-defined settings, the rationale behind the proposals can easily be transposed to other scenarios because the scientific methods on which soil degradation has been defined and mapped are generally applicable, while the suggested legal values are currently applied to many regions on the planet.

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Anthropogenic impacts on mineral weathering: A statistical perspective

Cited by 50 publications

References 40 publications

A New Framework for the Management and Radiological Protection of Groundwater Resources: The Implementation of a Portuguese Action Plan for Radon in Drinking Water and Impacts on Human Health

A New Framework for the Management and Radiological Protection of Groundwater Resources: The Implementation of a Portuguese Action Plan for Radon in Drinking Water and Impacts on Human Health

Factors controlling Si export from soils: A soil column approach

A legal framework with scientific basis for applying the ‘polluter pays principle’ to soil conservation in rural watersheds in Brazil

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