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dc.contributor.authorCatalán, Alba
dc.contributor.authorAntúnez Pujol, Montserrat
dc.contributor.authorPoch, Rosa M.
dc.description.abstractThe Pyrenean range (NE Iberian Peninsula) has some favourable lithological and climatic conditions (iron-rich parent materials and udic moisture regimes) for the formation of acid sulfate soils (ASS) that have not been reported on from the region until now. The analyses of a drained peat bog near València d’Àneu revealed a pH (1:2.5) of 3.7. We hypothesize that it contained sulfidic materials that were oxidized during drainage, which could have caused its acidification. The main goal of this study is to understand the characteristics and the potential acidity of these organic soils and the consequences that this could generate in the current environment. In order to do so, several profiles were described and sampled in the field for chemical and micromorphological analyses. The results show that the oxidation of the newly formed pyrite in the soil or pyrite contained in the Cambro–Ordovician parent material was responsible for the low pH and high electrical conductivity (EC). The soils still contain sulfidic materials at present, which could be oxidized in the future, with the consequent risk for water quality. The results will be useful to evaluate the risk of other peats in the Pyrenees becoming acid sulfate soils if drained.ca_ES
dc.description.sponsorshipThis research was funded by Institut Cartogràfic i Geològic de Catalunya (ICGC).ca_ES
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofQuaternary, 2019, vol. 2, núm. 3, article number 32ca_ES
dc.rightscc-by (c) Catalán et al., 2019ca_ES
dc.subjectAcid sulfate soilsca_ES
dc.subjectAcidity potentialca_ES
dc.subjectPirineu català (Catalunya)ca_ES
dc.titleAcidification assessment after peat bog drainage in the Catalan Pyrenees (NE Iberia)ca_ES

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cc-by (c) Catalán et al., 2019
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