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Article: Imprimé

Erosion under climate and human pressures: An alpine lake sediment perspective / Fabien Arnaud in Quaternary science reviews, 152 (11/2016)

Article (2016)

[article]
inQuaternary science reviews > 152 (11/2016) . - 1-18

Titre :	Erosion under climate and human pressures: An alpine lake sediment perspective
Type de document :	Imprimé
Auteurs :	Fabien Arnaud ; Jérôme Poulenard ; Charline Giguet-Covex ; Bruno Wilhelm ; Sidonie Révillon ; Jean-Philippe Jenny ; Marie Revel ; Dirk Enters ; Manon Bajard ; Laurent Fouinat ; Elise Doyen ; Anaëlle Simonneau ; Cécile Pignol ; Emmanuel Chapron ; Boris Vannière ; Pierre Sabatier
Année de publication :	2016
Article en page(s) :	1-18
Langues :	Anglais (eng)
Catégories :	[CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
Résumé :	We review the scientiﬁc efforts over the last decades to reconstruct erosion from continuous alpine lake sediment records. We focused both on methodological issues, showing the growing importance of nondestructive high resolution approaches (XRF core-scanner) as well as progresses in the understanding of processes leading to the creation of an “erosion signal” in lakes. We distinguish “continuous records” from “event-records”. Both provide complementary information but need to be studied with different approaches. Continuous regionally-relevant records proved to be particularly pertinent to document regional erosion patterns throughout the Holocene, in particular applying the source to sink approach. Event-based approaches demonstrated and took advantage of the strong non-linearity of sediment transport in high altitude catchment areas. This led to ﬂood frequency and intensity reconstructions, highlighting the inﬂuence of climate change upon ﬂood dynamics in the mountain.
Lien pérenne :	DOI : 10.1016/j.quascirev.2016.09.018 / HAL : insu-01375648
Permalink :	https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147807

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