Mapping soil and substratum at a very high spatial resolution in the hillslope of Couchey (France)

Emmanuel Chevigny (1) , Amélie Quiquerez (1) , Pierre Curmi (2) , Christophe Petit (3) , Françoise Vannier-Petit (4)

1 ARTeHiS - Archéologie, Terre, Histoire, Sociétés [Dijon]
2 Agroécologie [Dijon]
3 ArScAn - Archéologies et Sciences de l'Antiquité
4 Chercheur indépendant

In this work, we present a method based on very high spatial resolution (VHSR) aerial images acquired in the visible domain and that map soil surface diversity at the hillslope scale with a spatial resolution of a few centimeters. This method combines aerial VHSR image classification with local soil sampling. Principal component analysis (PCA) and non-supervised classification was performed on image characteristics to define soil surface characteristic classes (SSC). Then soil surface mapping was combined with soil surface descriptions and soil profiles to define soil types by physical and chemical characteristics. As soil results from parent material alteration, identifying the geological substratum can help to explain the diversity of vineyard soils. The confrontation between soil map and geological map at a 1:10000 scale highlights a good correlation between the geological substratum and soils classes for this hillslope.

Mots clés: Soil mapping; unmanned aerial vehicle; very high spatial resolution; soil surface characteristics; vineyards; geological map

Domaines: Environnement et Société; Etudes de l'environnement; Archéologie et Préhistoire

Emmanuel Chevigny, Amélie Quiquerez, Pierre Curmi, Christophe Petit, Françoise Vannier-Petit. Mapping soil and substratum at a very high spatial resolution in the hillslope of Couchey (France). IXth International Terroir Congress, Jun 2012, Dijon-Reims, France. ⟨hal-01114963⟩