Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction

Deonie Allen; Anaëlle Simonneau; Gaël Le Roux; Florence Mazier; Laurent Marquer; Didier Galop; Stéphane Binet

doi:10.1016/j.catena.2019.104278

Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction

Deonie Allen^*, Anaëlle Simonneau, Gaël Le Roux, Florence Mazier, Laurent Marquer, Didier Galop, Stéphane Binet

^*Corresponding author for this work

Civil And Environmental Engineering

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Abstract

Reconstruction of paleo-precipitation can provide an insight into past climate and precipitation. De Ploey et al. (1995) presents a highly simplified erosion equation to consider precipitation and erosion susceptibility. This empirical model allows estimation of total precipitation and erosion susceptibility across a range of catchment characteristics (including catchment area, slope, elevation, vegetation cover) and when limited catchment or meteorological data is available. The presented study tests the De Ploey equation using dated lacustrine records of catchment soil deposition both spatially and temporally. The objective is to examine the De Ploey equation's ability and efficiency in reconstructing past long-term precipitation using sedimentological parameters. The erosion susceptibility factor is described as a ‘black box’ value by De Ploey et al. (1995). This research unravels the erosion susceptibility variable, identifying it to change spatially and temporally according to precipitation, vegetation cover and composition (the extent of tree establishment across the catchment), total lacustrine deposition and geochemical signatures in the archive. Calculation of the erosion sustainability variable and it's use within the De Ploey erosion equation illustrate a reconstruction of an indicative mean annual precipitation and erosion susceptibility change over the recent period (∼100 years).

Original language	English
Article number	104278
Number of pages	13
Journal	Catena
Volume	187
Early online date	16 Dec 2019
DOIs	https://doi.org/10.1016/j.catena.2019.104278
Publication status	Published - 30 Apr 2020

Funding

The data has been funded and provided by the RETROALT project and Observatoire Homme-Milieu Pyrénées Haut Vicdessos, LabEx DRIIHM over the postdoc grant of A Simonneau ( 2013-2014 ). This work benefited from the financial support of the Adour Garonne Water Agency as part of the ROECEPAL project (headed by D. Galop) and a state aid managed by the ANR under the LabEx DRIIHM ANR-11-LABX-0010 as part of the RETROALT and GEOSPAT projects (OHM Pyrenees Vicdessos). CESBIO OHM Bernadouze weather station is supported by the Observatoire Spatial Régional (CNRS-INSU) and CNES-TOSCA funding awarded to S. Gascoin. D Allen benefits from a postdoc grant provided by the ANR-JCJCJ TRAM Project, ANR-15-CE01-0008 . The research leading to these results has also received funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement n. PCOFUND-GA-2013-609102 , through the PRESTIGE programme coordinated by Campus France.

Keywords

De Ploey
erosion
Lacustrine sediment
paleo-precipitation
precipitation modelling

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10.1016/j.catena.2019.104278

Allen-etal-CATENA-2020-Considering-lacustrine-erosion-records-and-the-De-Ploey-erosion-modelAccepted author manuscript, 1.16 MBLicence: CC BY-NC-ND 4.0

Cite this

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title = "Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction",

abstract = "Reconstruction of paleo-precipitation can provide an insight into past climate and precipitation. De Ploey et al. (1995) presents a highly simplified erosion equation to consider precipitation and erosion susceptibility. This empirical model allows estimation of total precipitation and erosion susceptibility across a range of catchment characteristics (including catchment area, slope, elevation, vegetation cover) and when limited catchment or meteorological data is available. The presented study tests the De Ploey equation using dated lacustrine records of catchment soil deposition both spatially and temporally. The objective is to examine the De Ploey equation's ability and efficiency in reconstructing past long-term precipitation using sedimentological parameters. The erosion susceptibility factor is described as a {\textquoteleft}black box{\textquoteright} value by De Ploey et al. (1995). This research unravels the erosion susceptibility variable, identifying it to change spatially and temporally according to precipitation, vegetation cover and composition (the extent of tree establishment across the catchment), total lacustrine deposition and geochemical signatures in the archive. Calculation of the erosion sustainability variable and it's use within the De Ploey erosion equation illustrate a reconstruction of an indicative mean annual precipitation and erosion susceptibility change over the recent period (∼100 years).",

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author = "Deonie Allen and Ana{\"e}lle Simonneau and \{Le Roux\}, Ga{\"e}l and Florence Mazier and Laurent Marquer and Didier Galop and St{\'e}phane Binet",

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AU - Allen, Deonie

AU - Simonneau, Anaëlle

AU - Le Roux, Gaël

AU - Mazier, Florence

AU - Marquer, Laurent

AU - Galop, Didier

AU - Binet, Stéphane

PY - 2020/4/30

Y1 - 2020/4/30

N2 - Reconstruction of paleo-precipitation can provide an insight into past climate and precipitation. De Ploey et al. (1995) presents a highly simplified erosion equation to consider precipitation and erosion susceptibility. This empirical model allows estimation of total precipitation and erosion susceptibility across a range of catchment characteristics (including catchment area, slope, elevation, vegetation cover) and when limited catchment or meteorological data is available. The presented study tests the De Ploey equation using dated lacustrine records of catchment soil deposition both spatially and temporally. The objective is to examine the De Ploey equation's ability and efficiency in reconstructing past long-term precipitation using sedimentological parameters. The erosion susceptibility factor is described as a ‘black box’ value by De Ploey et al. (1995). This research unravels the erosion susceptibility variable, identifying it to change spatially and temporally according to precipitation, vegetation cover and composition (the extent of tree establishment across the catchment), total lacustrine deposition and geochemical signatures in the archive. Calculation of the erosion sustainability variable and it's use within the De Ploey erosion equation illustrate a reconstruction of an indicative mean annual precipitation and erosion susceptibility change over the recent period (∼100 years).

AB - Reconstruction of paleo-precipitation can provide an insight into past climate and precipitation. De Ploey et al. (1995) presents a highly simplified erosion equation to consider precipitation and erosion susceptibility. This empirical model allows estimation of total precipitation and erosion susceptibility across a range of catchment characteristics (including catchment area, slope, elevation, vegetation cover) and when limited catchment or meteorological data is available. The presented study tests the De Ploey equation using dated lacustrine records of catchment soil deposition both spatially and temporally. The objective is to examine the De Ploey equation's ability and efficiency in reconstructing past long-term precipitation using sedimentological parameters. The erosion susceptibility factor is described as a ‘black box’ value by De Ploey et al. (1995). This research unravels the erosion susceptibility variable, identifying it to change spatially and temporally according to precipitation, vegetation cover and composition (the extent of tree establishment across the catchment), total lacustrine deposition and geochemical signatures in the archive. Calculation of the erosion sustainability variable and it's use within the De Ploey erosion equation illustrate a reconstruction of an indicative mean annual precipitation and erosion susceptibility change over the recent period (∼100 years).

KW - De Ploey

KW - erosion

KW - Lacustrine sediment

KW - paleo-precipitation

KW - precipitation modelling

UR - https://www.scopus.com/pages/publications/85076606063

U2 - 10.1016/j.catena.2019.104278

DO - 10.1016/j.catena.2019.104278

M3 - Article

AN - SCOPUS:85076606063

SN - 0341-8162

VL - 187

JO - Catena

JF - Catena

M1 - 104278

ER -

Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction

Abstract

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Keywords

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