Mofette Vegetation as an Indicator for Geogenic CO₂ Emission: A Case Study on the Banks of the Laacher See Volcano, Vulkaneifel, Germany

Figure 4

Vertical sections of CO₂ (a) and O₂ (b) concentrations showing the prevailing gas channels. Two different transects for the two different gases were chosen. (a) CO₂ concentrations are shown in linear transect 4. Up to five CO₂ channels can be seen from which four are reaching the soil surface. (b) Transect 6 is used to illustrate oxygen channels through the soil. CO₂ concentrations are given in %.

(a)

(b)