Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno)
Post-wildfires geological hazards are an emerging problem in many places, including areas not typically associated with these events such as the Alpine Region. Hazards connected with post-fire processes such as debris-flows and flood-type events threatens people, infrastructures, services and econom...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_04009.pdf |
| _version_ | 1797740227388768256 |
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| author | Mandrone Giuseppe Vacha Damiano Chicco Jessica |
| author_facet | Mandrone Giuseppe Vacha Damiano Chicco Jessica |
| author_sort | Mandrone Giuseppe |
| collection | DOAJ |
| description | Post-wildfires geological hazards are an emerging problem in many places, including areas not typically associated with these events such as the Alpine Region. Hazards connected with post-fire processes such as debris-flows and flood-type events threatens people, infrastructures, services and economical activities. Apart from a few examples, there is a lack of models available to quantify the increase in susceptibility as a result of the modification induced by the wildfires. In this work we test the application of a modified version of the RUSLE, on GIS, to quantify the post-fire erosive phenomena for a case study in the north-western Italian Alps. The results of its application, taking advantage of high-resolution rainfall series and data deriving from field surveys, highlight the marked increase (more than 20 times) in erosion rates, quantified by expressing both the EI (erodibility index), the A (monthly soil loss) and the SL (monthly sediment loss) rise. The months of April, May and June represents the larger share of the total quantities. This is a consequence of the noticeable increase of the Erodibility Index EI, which for the post-fire scenario is more than one order of magnitude higher than the pre-fire one. |
| first_indexed | 2024-03-12T14:09:25Z |
| format | Article |
| id | doaj.art-26be075ed43d43e7af18415dfbd637dc |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T14:09:25Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-26be075ed43d43e7af18415dfbd637dc2023-08-21T09:02:37ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014150400910.1051/e3sconf/202341504009e3sconf_dfhm82023_04009Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno)Mandrone Giuseppe0Vacha Damiano1Chicco Jessica2DIST – University of TorinoDIST – University of TorinoDIST – University of TorinoPost-wildfires geological hazards are an emerging problem in many places, including areas not typically associated with these events such as the Alpine Region. Hazards connected with post-fire processes such as debris-flows and flood-type events threatens people, infrastructures, services and economical activities. Apart from a few examples, there is a lack of models available to quantify the increase in susceptibility as a result of the modification induced by the wildfires. In this work we test the application of a modified version of the RUSLE, on GIS, to quantify the post-fire erosive phenomena for a case study in the north-western Italian Alps. The results of its application, taking advantage of high-resolution rainfall series and data deriving from field surveys, highlight the marked increase (more than 20 times) in erosion rates, quantified by expressing both the EI (erodibility index), the A (monthly soil loss) and the SL (monthly sediment loss) rise. The months of April, May and June represents the larger share of the total quantities. This is a consequence of the noticeable increase of the Erodibility Index EI, which for the post-fire scenario is more than one order of magnitude higher than the pre-fire one.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_04009.pdf |
| spellingShingle | Mandrone Giuseppe Vacha Damiano Chicco Jessica Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) E3S Web of Conferences |
| title | Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) |
| title_full | Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) |
| title_fullStr | Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) |
| title_full_unstemmed | Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) |
| title_short | Post-wildfire erosion rates and triggering of debris flows: A case study in Susa Valley (Bussoleno) |
| title_sort | post wildfire erosion rates and triggering of debris flows a case study in susa valley bussoleno |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_04009.pdf |
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