1400 years of man-environment interactions and soil evolution in the Saint-Mont mountain (Remiremont, Vosges)

1400 ans d'interactions homme-milieu : évolution des sols sur le Saint-Mont (Remiremont, Vosges)

A. Poszwa (1) , A. Grzesznik (2) , A. Gebhardt (1, 3) , A. Agat (1) , P. Even (4) , Phuc Ngo (4) , D. Cartier (5) , V. Robin (1) , C. Delangle (6) , S. Occhietti (7) , Alexis A. de Junet (1) , Dominique Harmand (8) , Charles Kraemer (9) , T. Chenal (2) , D. Bartier (10)

1 LIEC - Laboratoire Interdisciplinaire des Environnements Continentaux
2 ARTeHiS - Archéologie, Terre, Histoire, Sociétés [Dijon]
3 Inrap - Institut national de recherches archéologiques préventives
4 ADAGIO - Applying Discrete Algorithms to Genomics and Imagery
5 Chercheur indépendant
6 centre de géologie Terrae Genesis
7 Université de Québec à Montréal, Département de Géographie
8 LOTERR - Centre de Recherche en Géographie
9 HISCANT-MA - Histoire et Cultures de l'Antiquité et du Moyen Âge
10 GeoRessources

The SolHoM(a) project aims at determining the degree of landscape anthropisation in the Fossard massif (Remiremont, Vosges, France) by estimating the impact of past human occupations on current soils. Nowadays, a forest covers this relatively inhospitable mountain (hard climate, steep slopes, acid soils ...), but some remains suggest human presence for at least 1400 years.The Saint-Mont is a variscan orogenic granitic summit (height 672m) with valuable preserved archaeological relics, located south of the Fossard. At the top was founded the monasterium Habendum (from the 7th century to the French Revolution), which potentially comes after a late-antic castrum.Furthermore, monumental enclosure dry-stones walls, not yet clearly linked with the monastery, crosses the massif.Our methodology is first experienced on the Saint-Mont, well documented by recent archaeological research. It features:- sampling soil transects presenting a clear gradient from highly to poorly human impacted areas. According to those transects, soils are sampled and characterised (physico-chemistry, soil micromorphology, analysis of organic matter, dating); this should highlight traces of past human activity;- a development of algorithms to detect geometric structures in the raw LiDAR data provided by the PCR AGER(b) (Ch. Kraemer, dir). This research might help archaeologists to determine areas influenced or not by men.Once tested on the Saint-Mont, this approach will be applied to another archaeologically less investigated area of the Fossard.First field works highlight two soil sequences:- the first one, near a probable merovingian wall close to the monastery, reveals a very black 80cm deep unit,- the second one, far-off the monastery and beside the enclosure dry-stone wall, is less thick but have a thin black unit buried under 20 cm of pedogenised sediment.Physico-chemical and soil micromorphological analyses are in progress. The coming study of profiles/sequences more distant from archaeological sites will contribute to estimate the degree of soils anthropisation in the Saint-Mont.(a) Interactions Sol-Hommes-Milieux(b) ArchéoGEographie du premier Remiremont et de ses abords

Mots clés: pedology; archeology; LiDAR data analysis; anthropisation gradient; Vosges mountains; A relatively inhospitable mountain: -hard climate; steep slopes; -on acid soils developed from a granitic rock; -nowadays covered by forests. Joint work involving soil scientists; archaeologists; geographers; geologists and computer scientists

Domaines: Interfaces continentales, environnement; Science des sols; Géomorphologie; Archéologie et Préhistoire; Environnement et Société

A. Poszwa, A. Grzesznik, A. Gebhardt, A. Agat, P. Even, et al.. 1400 years of man-environment interactions and soil evolution in the Saint-Mont mountain (Remiremont, Vosges). Historical Ecology for the future - International conference in historical ecology, May 2021, Metz, France. , 2021. ⟨hal-03236655⟩