Vegetation cover of a Wadden Sea mainland salt marsh 17 years after land-use change


Vegetated coastal ecosystems have been increasingly recognized for their capacity to sequester organic carbon in their soils and sediments under the term blue carbon. The vegetation of these habitats shows specific adaptations to severe abiotic soil conditions, particularly, waterlogging and salinity, and supports therefore ecosystem functioning and services. Wadden Sea salt marshes in Schleswig-Holstein (Germany) have been utilized for high density sheep grazing over centuries. At the beginning of the 1990s, in many parts of salt marshes livestock densities were reduced and the maintenance of the anthropogenic drainage system was ceased. In 2012, 17 years after the change of land utilization, the contents, densities, and accumulation rates of surface soil carbon were investigated at 50 sampling positions with different elevations along eight transects in Wadden Sea mainland salt marshes at Hamburger Hallig, Schleswig-Holstein, Germany, under different livestock grazing regimes (ungrazed, moderately grazed, intensively grazed). Surface soil was collected in 150 permanent plots (2 m * 2 m) at 50 sampling positions, covering a salt marsh area of 1050 ha. The carbon contents, pH, and bulk density were determined from dried soil. The elevations of the 150 permanent plots were measured and annual vertical accretion rates were calculated from 17 years sedimentation monitoring.

The data is part of rawdata published in Global Index of Vegetation Databases (GIVD) by Stock 2012 (; Species names nomenclature according to Wisskirchen et al. (1998), Standard List of Ferns and Flowering Plants of Germany, Eugen Ulmer Gmbh.

Related Identifier
Related Identifier
Metadata Access
Creator Granse, Dirk ORCID logo; Wanner, Antonia; Stock, Martin; Jensen, Kai (ORCID: 0000-0002-0543-070X)
Publisher PANGAEA
Publication Year 2023
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 4050 data points
Discipline Earth System Research
Spatial Coverage (8.852 LON, 54.610 LAT); Wadden Sea, Germany
Temporal Coverage Begin 2012-08-31T09:00:00Z
Temporal Coverage End 2012-09-24T18:00:00Z