Plant DNA analyses, nature and intensity of human activities, and erosion intensities in the North-western Alps over the last 4000-6000 years inferred from lake sediments


We investigated the spatio-temporal trajectories of mountain agro-ecosystems by studying five lakes located between 880 and 2440 m a.s.l. in the north-western Alps. More specifically, we were interested in past interactions between agropastoral activities, plant community composition and erosion dynamics. To investigate this question, we relied on a multi-proxy dataset of lake sediment analyses. The selected proxies come mainly from plant and mammal sedimentary DNA analyses, but also from pollen and spore analyses of coprophilous fungi (Sporormiella sp.). The originality of this dataset is the creation of an index of (agro-)pastoral activity intensity valid for each lake catchment. This index showed a pattern of development of (agro-)pastoral activities according to altitude in this Alpine region. This index was then used to analyse the impact of (agro)pastoral activities on erosion dynamics and plant cover.

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Metadata Access
Creator Giguet-Covex, Charline ORCID logo; Chen, Wentao; Ficetola, Francesco Gentile; Gielly, Ludovic; Pansu, Johan
Publisher PANGAEA
Publication Year 2023
Funding Reference European Commission Crossref Funder ID 655331 agroPastoral Activities and effects on Landscapes and ErOsion dynAmics in the alps: a new insight from Geological appRoaches and lake sedIment DNA (PALEO-AGRI); Grenoble Alpes University Crossref Funder ID ANR-15-IDEX-02 CDP Trajectories
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 22 datasets
Discipline Earth System Research
Spatial Coverage (6.056W, 45.175S, 6.914E, 46.027N)
Temporal Coverage Begin 2007-09-05T00:00:00Z
Temporal Coverage End 2016-01-18T00:00:00Z