From 1999 onwards, I maintain a network of climate sensors in the Roche Noire Valley (Hautes-Alpes) to characterize the local bioclimate of alpine and subalpine grasslands.
Measured variables include:
- soil temperature (mostly subsurface temperatures and more recently temperatures at different depths).
- volumetric soil water content
The vegetation is known from an ensemble of 120 permanent plots (20 m2 each) established in 2011 with the aim to track long-term changes in vascular plant composition. This work has been initiated in collaboration with Gilles Pellet.
This work is supported by the Station Alpine J. Fourier (project BIOCLIM-OBS2).
Overview of the Roche Noire valley, the instrumented high elevation watershed located beween 1900m and 2800 m in the French Alps (Hautes-Alpes, commune de Monêtier-les-Bains). The picture shows stands of a subalpine Lariix decidua forest (foreground), green subalpine grasslands dominated by Festuca paniculata and alpine grasslands, part of them being snow-covered (background). Photo: 28.06.2013 by Philippe Choler.