Extended Data Fig. 4: Relationship between late-Holocene RSLR and C density for data-rich late-Holocene RSLR zones and transitional zones.
From: Wetland carbon storage controlled by millennial-scale variation in relative sea-level rise

a–d, Box plots of tidal-marsh soil C density for data-rich Holocene RSLR zones and transitional regions: zone I–II transition (a), zone II (b), zone IV (c), and zone V (d).