Extended Data Fig. 3: Comparison of two methods of basal area measurement for a representative tree.
From: Enhanced woody biomass production in a mature temperate forest under elevated CO2

The light green dots are calculations based on daily values of circumference from automated dendrometers (Dendrometer increment sensor DRL26A of resolution less than 1 μm, Environmental Measuring Systems, Brno, Czech Republic), with the data reset to zero each year. The dark green dots are from similar calculations from monthly surveys of manual band dendrometers as described in Methods.