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Article Dans Une Revue Geoarchaeology: An International Journal Année : 2024

Exploring the past through lynchet landscapes in the Vosges Mountains and the Lorraine Plateau (France)

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Abstract Lynchets are ridges formed by erosion and sediment accumulation downstream of agricultural plots and offer valuable insights into past agricultural activity. These microtopographies cover vast areas and serve as indicators of historical changes in land use. As a result, their ubiquity across Europe makes them particularly interesting. In this study, we propose a geoarchaeological approach to analyze six lynchets, four in the Vosges Mountains and two on the Lorraine Plateau (France). The lynchets can be considered soil archives with no stratigraphic organization or chronological sequence from bottom to top, making it difficult to determine the age of the lynchets and identify changes in land use over time. To this end, we propose the analysis of historical and geo‐historical archives combined with the “pedosedimentary” archives of lynchets through charcoal identification and dating combined with near‐infrared spectroscopy to determine the age, vegetation, and past land use changes associated with lynchet landscapes. By combining these multiple data sources, we are better able to show the chronological development of these ancient agricultural systems and uncover valuable information on landscape history. Charcoal dating suggests a higher frequency of fires from the Middle Ages. The dating aligns with the regional dynamics of anthropogenic fires, indicating a potential use of fire for cultural purposes. We also demonstrate the difficulty of extrapolating the dating of a lynchet to the entire lynchet system. Our results highlight the difficulties of interpreting the formation and dating of lynchets and the lynchet system on the sole basis of charcoal analysis. However, we highlight the value of applying pedoanthracology to lynchets to determine the dynamics of land use change in former fields.
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hal-04430910 , version 1 (01-02-2024)

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Benjamin Keller, Robin Vincent, Dominique Schwartz, Damien Ertlen. Exploring the past through lynchet landscapes in the Vosges Mountains and the Lorraine Plateau (France). Geoarchaeology: An International Journal, 2024, ⟨10.1002/gea.21993⟩. ⟨hal-04430910⟩
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