Extended Data Fig. 4: Relationships between field-measured peat thickness (LOI + corrected pole-method measurements) and distance from the peatland margin.
From: Mapping peat thickness and carbon stocks of the central Congo Basin using field data

Distance from the peatland margin is calculated as the shortest distance to a non-peat pixel in any direction, based on a smoothed median Maximum Likelihood map of peatland extent (> 50% peat probability threshold). Transects are ordered by increasing regression slope (in m km−1; upper left corner of each panel), with colours indicating the four transect regions. Note that the horizontal axes are different for each panel. Shaded grey shows 95% confidence intervals around each regression.