Towards a Better Knowledge of Natural Methane Releases in the French Alps: A Field Approach

Figure 8

CLU site: interpolated maps for soil gas concentrations (lines) and fluxes (full fill); point CLU11 is located by the yellow arrow; (a) CO₂ gas; (b) CH₄ gas; (c) O₂ gas (for O₂, the data in g·m^-2·h^-1 represent the decrease of gas content in the chamber during the measurement).

(a)

(b)

(c)