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Testing the impacts of wildfire on hydrological and sediment response using the OpenLISEM model. Part 2: Analyzing the effects of storm return period and extreme events

2021-01Artigo científico Acesso aberto
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dc.contributor.authorWu, Jinfeng
dc.contributor.authorBaartman, Jantiene
dc.contributor.authorNunes, João Pedro
dc.date.accessioned2021-09-08T12:56:57Z
dc.date.available2023-12-01T01:31:07Z
dc.date.issued2021-01
dc.description.abstractWildfires can have strong negative effects on soil and water resources, especially in headwater areas. The spatially explicit OpenLISEM model was applied to a burned catchment in southern Portugal to quantify the individual and combined impacts of wildfire and rainfall on hydrological and erosion processes. The companion paper has calibrated and assessed model performance in this area before and after a fire. In this study, the model was applied with design storms of six different return periods (0.2, 0.5, 1, 2, 5, and 10 years) to simulate and evaluate pre- and post-wildfire hydrological and erosion responses at the catchment scale. Our results show that rainfall amount and intensity played a more important role than fire occurrence in the catchment discharge and sediment yields. Fire occurrence was found to be an important factor for peak discharge, indicating that high post-fire hydro-sedimentary responses are frequently related to extreme rainfall events. The results also suggest a partial shift from runoff to splash erosion after fire, especially for higher return periods. This can be explained by increased splash erosion in burned upstream areas saturating the sediment transport capacity of surface runoff, limiting runoff erosion in downstream areas. Therefore, the pre-fire erosion risk in the croplands of this catchment was partly shifted to a post-fire erosion risk in upper slope forest and natural areas, especially for storms with lower return periods, although erosion risks in croplands were important both before and after fires. These findings have significant implications to identify areas for post-wildfire stabilization and rehabilitation, which is particularly important given the predicted increase in the occurrence of fires and extreme rainfall events with climate change.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationWu J., Baartman J.E.M., Nunes J.P. 2021. Testing the impacts of wildfire on hydrological and sediment response using the OpenLISEM model. Part 2: analyzing the effects of storm return period and extreme events. Catena 207: 105620 (DOI: 10.1016/j.catena.2021.105620).pt_PT
dc.identifier.doi10.1016/j.catena.2021.105620pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/49453
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCSC: 201806350161pt_PT
dc.relationFCT IF/00586/2015pt_PT
dc.relationFCT PCIF/MPG/0044/2018pt_PT
dc.relationFCT UIDB/00329/2020pt_PT
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.catena.2021.105620pt_PT
dc.subjectClimate changept_PT
dc.subjectWildfirept_PT
dc.subjectRainfall characteristicspt_PT
dc.subjectHydrological responsept_PT
dc.subjectSediment yieldpt_PT
dc.titleTesting the impacts of wildfire on hydrological and sediment response using the OpenLISEM model. Part 2: Analyzing the effects of storm return period and extreme eventspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage105620pt_PT
oaire.citation.titleCATENApt_PT
oaire.citation.volume207pt_PT
person.familyNameWu
person.familyNameBaartman
person.familyNameCarvalho Nunes
person.givenNameJinfeng
person.givenNameJantiene
person.givenNameJoão Pedro
person.identifierA-5497-2011
person.identifier.ciencia-id2911-5CBD-5FA9
person.identifier.orcid0000-0002-2875-8628
person.identifier.orcid0000-0001-6051-8619
person.identifier.orcid0000-0002-0164-249X
person.identifier.scopus-author-id23468621900
person.identifier.scopus-author-id7102878032
rcaap.embargofctO tipo de licença envolvido com a editora Elsevier para esta revista, não envolvendo pagamento (APC), apenas permite acesso em repositório público do formato 'aceite' (i.e não editado e paginado pela editora) após período de embargo de 24 meses após a data da sua publicação final.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication1ddde631-8331-4c8a-8581-dd5c5b6db07b
relation.isAuthorOfPublication761a2567-8b75-40be-b76d-1ec9bfab56f2
relation.isAuthorOfPublicationff741d71-8daf-4dbe-aec4-f4b9697072c5
relation.isAuthorOfPublication.latestForDiscoveryff741d71-8daf-4dbe-aec4-f4b9697072c5

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