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Conference Papers Year : 2022

Statistical evaluation of Agricultural terraces control on soil erosion

Abstract

Agricultural terraces, built on slopes, are known to limit soil erosion, promote water retention and increase yield. This information is mainly feedback from experimental plots (Deng et al., 2021). Agricultural terraces are now seen as a method of adaptation to climate change, which in some regions will result in prolonged droughts interspersed with intense rainfall events (e.g. Kosmowski, 2016). The question of their resistance to extreme rainfall remains. The research work presented here exploits the comparison of Sentinel2 satellite data acquired before and after the storm Alex that hit the south of France in October 2020. A change detection model (Cerbelaud et al., 2021) is used to assign a probability of damage to agricultural plots. Outside the major river beds, this damage is the consequence of intense runoff with erosion and deposition processes. The territory studied is that of the Alpes Maritimes, located on the Mediterranean coast. It still has many terraces maintained or used for the cultivation of olive trees. The approach consists in evaluating whether the probability of damage is statistically lower in plots with terraces than in plots without terraces. The results indicate a significant effect of terraces on damage limitation in agricultural plots. https://esdac.jrc.ec.europa.eu/public_path/shared_folder/euso/workshop_soil_erosion/erosion_mitigation-management/43%20-%20Breil%26Cerbelaud.pdf
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Dates and versions

hal-03822040 , version 1 (20-10-2022)

Identifiers

  • HAL Id : hal-03822040 , version 1

Cite

Pascal Breil, Arnaud Cerbelaud, Gwendoline Blanchet, Laure Roupioz, Xavier Briottet. Statistical evaluation of Agricultural terraces control on soil erosion. Soil Erosion online Workshop 2022 - European Soil Data Centre (ESDAC) - Session on Erosion Mitigation & Management Practices, ESDAC JRC, Jun 2022, Ispra, Italy. ⟨hal-03822040⟩
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