Figure 7.

Surface emission rates of various monoterpenes (in μgC m⁻² h⁻¹) for different vegetation types. The lower and upper hinges correspond to the first and third quartiles. The upper (lower) whisker extends from the hinge to the largest (smallest) value no further than 1.5 × IQR from the hinge, where IQR is the interquartile range (i.e., the distance between the first and third quartiles). The notches extend $1.58\times \text{IQR}/\sqrt{n}$ and give a ~95 % confidence interval for medians. Miscellaneous refers to a mix of different species, including lichens and moss tundra.