Blue Carbon in Coastal Phragmites Wetlands Along the Southern Baltic Sea

Abstract Coastal wetlands are important for carbon (C) storage and sequestration. Still, there large knowledge gaps concerning the amount of “blue carbon” in coastal dominated by common reed ( Phragmites australis ). We quantified stocks at southern Baltic Sea coast six representative wetland sites Darss-Zingst-Bodden Chain (DZBC) Strelasund, which include different categories adjacent land use (arable land, woodland, pasture, urban), topography (totally flat to undulating), geographical restrictions (dyking). Sediment samples were taken a depth 1 m, line with IPCC guidelines, total concentrations bulk densities measured 10 cm intervals. The stored, on average, 17.4 kg C m −2 variability between sites, ranging from 1.76 88.6 . estimated average is generally good agreement reported tidal salt marshes, mangroves, seagrass meadows. According our estimation, based widths belts sampled approximately 264,600 t blue could be stored along DZBC, typical lagoon system Sea. Our study underlines importance these unique ecotones sea sequestration carbon. Since also (sometimes invasive) species other brackish water basins, such as Black or Chesapeake Bay, estimates can used improved precision modeling budgets.