Baseline to evaluate off-sitesuspended sediment-related mining effects in the Alto Tajo Natural Park, Spain

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dc.contributor.authorZapico Alonso, Ignacio
dc.contributor.authorLaronne, Jonathan
dc.contributor.authorMartín Moreno, Cristina
dc.contributor.authorMartín Duque, José Francisco
dc.contributor.authorOrtega, Ana
dc.contributor.authorSánchez Castillo,Lázaro
dc.date.accessioned2024-02-05T17:51:43Z
dc.date.available2024-02-05T17:51:43Z
dc.date.issued2017-01
dc.description.abstractMining is a human activity with considerable environmental impact. To evaluate such impacts, international laws require undertaking local studies based on direct sampling to establish baseline conditions of parameters modified by human activities. Mining takes place near the Alto Tajo Natural Park, where a suspended sediment concentration (SSC) baseline is required to determine whether mining affects water quality. To this end, we have monitored the Tajo River and its tributary the Tajuelo following Before–After Control-Impact (BACI) techniques, recommended by Australian and New Zealand laws, requiring a specific method based on continuous monitoring and sampling to enable evaluation of SSCs. An SSC baseline has been defined at stations situated upstream of the mining area and compared with those downstream. The highest detected SSC upstream of the Tajuelo mines was 24 g l−1 whereas the highest simultaneous downstream value was 391 g l−1, more than one order of magnitude higher than the supposed baseline (24 g l−1). Additionally, this value is 1000 times more than the average concentration of 25 mg l−1, used by the European Union until 2015, to guarantee the quality of salmonid waters. Following a BACI approach, a statistically significant SSC impact has been identified. The mined areas are the only source that can explain this increase. This is the first instance that such an increase and baseline have been found using this method. BACI is a simple and reliable method recommended for studying degraded areas rather than an irrelevant, fixed standard as included in most international laws.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación
dc.description.sponsorshipMinisterio de Economía y Competitividad
dc.description.sponsorshipComunidad Autónoma de Castilla-La Mancha
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.sponsorshipCSIC
dc.description.statuspub
dc.identifier.doi10.1002/ldr.2605
dc.identifier.essn1099-145X
dc.identifier.issn1085-3278
dc.identifier.officialurlhttps://doi.org/10.1002/ldr.2605
dc.identifier.relatedurlhttps://onlinelibrary.wiley.com/doi/full/10.1002/ldr.2605
dc.identifier.urihttps://hdl.handle.net/20.500.14352/99132
dc.issue.number1
dc.journal.titleLand Degradation and Development
dc.language.isoeng
dc.page.final242
dc.page.initial232
dc.publisherWiley
dc.relation.projectIDCGL2010-21754-C02-01
dc.relation.projectID249/2015
dc.relation.projectIDS2013/MAE-2719
dc.rights.accessRightsopen access
dc.subject.cdu504.5:622
dc.subject.keywordsuspended sediment
dc.subject.keywordBACI
dc.subject.keywordmining activity
dc.subject.keywordbaseline
dc.subject.keywordNatural Park
dc.subject.ucmGeodinámica
dc.subject.unesco2506.04 Geología Ambiental
dc.titleBaseline to evaluate off-sitesuspended sediment-related mining effects in the Alto Tajo Natural Park, Spain
dc.typejournal article
dc.type.hasVersionAM
dc.volume.number28
dspace.entity.typePublication
relation.isAuthorOfPublication4710adf0-77cf-44c5-b9c9-69b66cee16c8
relation.isAuthorOfPublication4248c00a-da95-43d1-aea6-96820d05eacc
relation.isAuthorOfPublication5f95937a-47b9-498e-a16c-44228acedd90
relation.isAuthorOfPublication.latestForDiscovery4710adf0-77cf-44c5-b9c9-69b66cee16c8
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