Fig. 2: Impact of bottom-trawling intensity on the OC–mud relationship in the North Sea sediments.
From: Long-term carbon storage in shelf sea sediments reduced by intensive bottom trawling
a, Data points and relationship are distinguished by weak or zero trawling intensity (SAR < 1 yr-1, n = 1,034) and enhanced trawling intensity (SAR ≥ 1 yr-1, n = 1,346) for the entire North Sea. b,c, Data from two densely sampled local areas (location in Supplementary Fig. 4) representing sandy (German Bight, n = 167) (b) and muddy (Fladen Ground, n = 450) (c) seabed. The ellipses contain at least 80% of data points for the two groups bounded by SAR = 1 yr-1. Linear trendlines are shown with corresponding functions and R squared.
