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

Figure 2

(a–d) Soil CO₂ concentrations within the U1 mofette (). Measurements were done at each intersection of the grid. CO₂ concentrations at four different soil depths are given: (a) 10 cm, (b) 20 cm, (c) 40 cm, and (d) 60 cm. The colour bar indicates the gas concentration ranges. Orientation of the site as in Figure 1(b). CO₂ concentrations are given in %.

(a)

(b)

(c)

(d)