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dc.contributor.authorMartín Moreno, Cristinaes_ES
dc.contributor.authorMartín Duque, J. F.es_ES
dc.contributor.authorNicolau, J. M.es_ES
dc.contributor.authorMuñoz-Martín, Alfonsoes_ES
dc.contributor.authorZapico, Ignacioes_ES
dc.date.accessioned2019-07-11T08:55:53Z-
dc.date.available2019-07-11T08:55:53Z-
dc.date.issued2018-06-15-
dc.identifier.citationEarth Surface Processes and Landforms 43(7): 1431-1450 (2018)es_ES
dc.identifier.issn0197-9337-
dc.identifier.urihttp://hdl.handle.net/10261/185908-
dc.description.abstractMining is the largest producer of solid wastes which, when released to land or into waterways, can cause harmful environmental impacts. This is mostly due to fluvial erosion, which is highly increased in mountain areas, due to abrupt slopes. We have analysed this situation at a mountain watershed (192 ha), where steep mined sites and their waste dumps are the main source of sediment in a Natural Park. This problem was tackled by building gabion check dams downstream from the mined sites. We used the DEM of Differences (DoD) method to quantify erosion and sediment yield from three waste dumps (5 ha). Their topography and substrate properties were analysed to understand the erosion problem. The sediment trapped by the check dams was quantified by electrical resistivity tomography (ERT). The rainfall characteristics triggering an episode that filled the check dams with sediment in the winter 2009–2010, were studied to confirm whether it was a case of extreme precipitation conditions. The waste dumps sediment yield (353 ± 95 Mg ha−1 yr−1) suggests severe landform instability. Analysis of topographic and substrate properties confirmed long, steep slopes combined with highly erodible materials. The check dams proved to be inefficient in controlling sediment loads, as they had only functioned for four years of 31 of existence, having trapped 13 000 ± 660 m3 of sediment, whereas we estimated that the waste dumps have yielded approximately three times more sediment for the same period. Rainfall analyses showed that neither intense nor extreme conditions (return period of 25 to 35 years) triggered the mobilization of 37 ± 2 Mg ha−1 in a month. This study highlights the fact that mining operations in similar mountainous settings, with equivalent waste dump construction and reclamation practices, are currently unfeasible. We conclude that landform stability cannot be achieved at this site without landform changes.es_ES
dc.description.sponsorshipThis work was funded by a research contract between the Spanish mining company CAOBAR S.A. and the Department of Geodynamics of the Complutense University of Madrid (research contract numbers, 196/2013, 222/2011, 261/2009). The data analyses and manuscript production were developed within the Research Project CGL2010‐21754‐C02‐01 of the Spanish Ministry of Science and Technology and by the Ecological Restoration network REMEDINAL‐3 (S2013/MAE2719). The authors want to thank the Consejería de Economía, Empresas y Empleo, Junta de Comunidades de Castilla‐La Mancha for the images ceded and Nestor Hernández for his help in fieldwork.es_ES
dc.language.isoenges_ES
dc.publisherJohn Wiley & Sonses_ES
dc.relationS2013/MAE-2719/REMEDINAL3-CMes_ES
dc.rightsclosedAccesses_ES
dc.subjectLandform stabilityes_ES
dc.subjectMining erosiones_ES
dc.subjectCheck damses_ES
dc.subjectElectrical resistivity tomography (ERT)es_ES
dc.subjectDEM of difference (DoD)es_ES
dc.titleWaste dump erosional landform stability – a critical issue for mountain mininges_ES
dc.typeartículoes_ES
dc.identifier.doi10.1002/esp.4327-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1002/esp.4327es_ES
dc.identifier.e-issn1096-9837-
dc.contributor.funderCaobares_ES
dc.contributor.funderUniversidad Complutense de Madrides_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderComunidad de Madrides_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/100012818es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002911es_ES
dc.contributor.orcidMartín Moreno, Cristina [0000-0001-6967-5557]es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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