Citation:

PANGAEA.982734

Name: Grazing effects on soil organic carbon stocks of German salt marshes along the Baltic Sea and North Sea coast
Published: 2025-06-12
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Baltic Sea; blue carbon; carbon stocks; grazing; North Sea; Salt marshes; succession

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Published: 2025-06-12 • DOI registered: 2025-06-12

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Abstract:

In order to assess grazing effects in soil organic carbon (SOC) stocks, three distinct salt marsh types were sampled: Baltic Sea salt marshes, North Sea mainland salt marshes and North Sea island salt marshes. Between 2022 and 2023, eight study sites were sampled, with transects laid out across the two management types (grazed and non-grazed), each management site at comparable successional stages. In each study site 6-10 plots were assessed. For the quantification of SOC content, soil bulk density and SOC δ13C signature, a single 30-cm soil core was taken from each plot. An Eijkelkamp peat sampler was used for taking soil cores. Dry soil bulk density was calculated from sample dry weight and volume. Prior to elemental and isotope analysis, macroscopic root residues were removed and soil samples were acidified.

Keyword(s):

Baltic Sea; blue carbon; carbon stocks; grazing; North Sea; Salt marshes; succession

Supplement to:

Logemann, Ella; Gösele, Clarisse; Jensen, Kai; Mueller, Peter (2025): Soil Organic Carbon Stocks of German Salt Marshes: A Comparative Study Along Low‐ and High‐Energy Coastlines. Journal of Geophysical Research: Biogeosciences, 130(7), e2025JG008797, https://doi.org/10.1029/2025JG008797

Related to:

Logemann, Ella; Gösele, Clarisse; Nicol, Kathryn; Jensen, Kai; Müller, Peter (2025): Soil organic carbon stocks of German salt marshes: a comparative study along Baltic Sea and North Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982732

Project(s):

DAM CDRmare - sea4soCiety: Searching for solutions for Carbon-sequestration in coastal ecosystems (sea4soCiety)

Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways (CDRmare)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0896F : DAM CDRmare - sea4soCiety, University of Hamburg

Coverage:

Median Latitude: 54.064713 * Median Longitude: 8.722070 * South-bound Latitude: 53.436601 * West-bound Longitude: 7.129025 * North-bound Latitude: 54.693717 * East-bound Longitude: 10.998284

Date/Time Start: 2022-08-09T00:00:00 * Date/Time End: 2023-11-07T00:00:00

Minimum DEPTH, soil: 0.05 m * Maximum DEPTH, soil: 0.25 m

Event(s):

GER_Ba_SM_P7_SC * Latitude: 53.721802 * Longitude: 7.398970 * Date/Time: 2022-08-11T00:00:00 * Campaign: * Basis: Sampling on land * Method/Device: Peat corer (PEATC)

GER_Ba_SM_P8_SC * Latitude: 53.722169 * Longitude: 7.399084 * Date/Time: 2022-08-11T00:00:00 * Campaign: * Basis: Sampling on land * Method/Device: Peat corer (PEATC)

GER_Ba_SM_P9_SC * Latitude: 53.722438 * Longitude: 7.398857 * Date/Time: 2022-08-11T00:00:00 * Campaign: * Basis: Sampling on land * Method/Device: Peat corer (PEATC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Logemann, Ella		M stands for management campaign
2	Sample code/label	Sample label		Logemann, Ella		Unique identifier for each sample
3	LATITUDE	Latitude		Logemann, Ella		Geocode
4	LONGITUDE	Longitude		Logemann, Ella		Geocode
5	DATE/TIME	Date/Time		Logemann, Ella		Geocode – Date
6	Site	Site		Logemann, Ella		Geographic location
7	Type	Type		Logemann, Ella		Classification of the salt marsh (e.g., Baltic Sea, North Sea mainland, North Sea island)
8	Ecosystem	Ecosystem		Logemann, Ella		Type of ecosystem
9	Zone	Zone		Logemann, Ella		Specific zone within the salt marsh (only applies to North Sea salt marshes)
10	Plot	Plot		Logemann, Ella		Identifier for the sampling plot
11	Management	Management		Logemann, Ella		Description of management practices (grazed or non-grazed)
12	Depth comment	Depth comm		Logemann, Ella		Depth range in cm of the collected soil sample
13	Depth, soil, minimum	Depth soil min	m	Logemann, Ella
14	Depth, soil, maximum	Depth soil max	m	Logemann, Ella
15	DEPTH, soil	Depth soil	m	Logemann, Ella		Geocode – Mean
16	Carbon, organic, soil	SOC	%	Gösele, Clarisse	Elemental analyzer, EuroVector, EA 3000	Percentage of soil organic carbon in the sample
17	δ13C, organic carbon	δ13C Corg	‰ PDB	Gösele, Clarisse	Isotope ratio mass spectrometer (IRMS), Nu Instruments, Horizon	Stable carbon isotope signature of the organic carbon
18	Density, dry bulk	DBD	g/cm³	Gösele, Clarisse	Calculated	Density of the soil
19	Density, organic carbon	Corg dens	g/cm³	Gösele, Clarisse	Calculated	Density of soil organic carbon
20	Validation flag/comment	Flag comm		Logemann, Ella	Elemental analyzer, EuroVector, EA 3000	Technical validation of carbon values
21	pH	pH		Gösele, Clarisse	pH meter, WTW, inoLab Multi 9310 IDS	Soil pH measurement
22	Conductivity	Cond	mS/cm	Gösele, Clarisse	Conductivity meter, WTW, inoLab Cond 7310	Electrical conductivity, soil
23	Depth, description	Depth desc		Logemann, Ella		Depth profile
24	Biomass, aboveground	Biom abovegr	g/m²	Gösele, Clarisse	Calculated	Above-ground biomass sampled in the center of 1 m² plot
25	Biomass, belowground	Biom belowgr	g/m²	Gösele, Clarisse	Calculated	Below-ground biomass in soil core (0-50 cm)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

3405 data points

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