Progressive and regressive soil evolution phases in the Anthropocene

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• 作者：Manon Bajard^a ; ^{manon.bajard@univ-smb.fr} ; Jé ; rô ; me Poulenard^a ; Pierre Sabatier^a ; Anne-Lise Develle^a ; Charline Giguet-Covex^c ; Jeremy Jacob^d ; Christian Crouzet^e ; Fernand David^b ; Cé ; cile Pignol^a ; Fabien Arnaud^a
• 关键词：E ; erosion ; V ; volume ; SF ; soil formation ; ST ; soil thickness ; SL ; soil loss ; TS ; terrigenous sediment ; SY ; sediment yield ; DD ; dry density (for sediment) ; BD ; bulk density (for soil) ; Msed ; mass of sediment ; NCIR ; non-carbonate ignition residue ; OM ; organic matter ; TOC ; total organic carbon
• 刊名：CATENA
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：150
• 期：Complete
• 页码：39-52
• 全文大小：2950 K
• 卷排序：150

文摘

Lake sediment archives are used to reconstruct past soil evolution. Erosion is quantified and the sediment geochemistry is compared to current soils. We observed phases of greater erosion rates than soil formation rates. These negative soil balance phases are defined as regressive pedogenesis phases. During the Middle Ages, the erosion of increasingly deep horizons rejuvenated pedogenesis.