Agriculture Reference
In-Depth Information
Figure 1. Study area.
The very steep and unstable uppermost part of the scree consists of gravels without soil
formation. Metric blocks are numerous in the stable and less inclined lower part and are
covered by an organic soil (Gobat et al., 2004). The bedrock under the scree consists mainly
of marls.
The presence of a permafrost table reported by Delaloye et al. (2003) is referred to the
advective energy fluxes due to air density contrasts. The distribution of vegetal associations
on the talus slope also indicates different ground thermal conditions, with growth of dwarf red
spruces in several patches of the lower part of the talus slope. The areas situated downwards
are covered by a mixed forest of beeches and spruces.
