Database Report

TMAP Wadden Sea Vegetation Database

Martin Stock

GIVD Database ID: EU-DE-033	Last update: 2015-09-23
TMAP Wadden Sea Vegetation Database	Web address: $v.WebAddress
Database manager(s): Martin Stock (martin.stock@lkn.landsh.de)
Owner: LKN-SH Dr. Martin Stock Nationalparkverwaltung Schlossgarten 1 25832 Tönning
Scope: Database of measurements of vegetation relevees along transects in the salt marshes of Schleswig-Holstein in relation to sea level rise and management regimes In toal 249 permanent plots are monitored annually since 1992.
Abstract: Vegetation changes in the salt marshes of the Schleswig-Holstein Wadden Sea National Park are measured annually since 1991 in relation to sea level rise, vegetation changes and salt marsh management. In total 249 permanent plots are established along transects with a concentration to three different locations along the coast, namely the Hamburger Hallig, the salt marshes of Westerhever and on the island of Trischen. Annually the vegetation composition and the cover of the species is measured using the LONDO scale. The measurements are part of the Trilateral Monitoring and Assesment Programm (TMAP) within the trilateral Wadden Sea Cooperation. The data provide a baseline for further studies of salt marsh succession in relation to marsh management and coastal protection activities.
Availability: according to a specific agreement	Online upload: no	Online search: no
Database format(s): Excel	Export format(s): Excel, CSV file, plain text file
Plot type(s): time series	Plot-size range (m²): 4 to 90
Non-overlapping plots: 249	Estimate of existing plots: 0	Completeness: [NA]	Status: completed and continuing
Total no. of plot observations: 2490	Number of sources (biblioreferences, data collectors): 0	Valid taxa: 0
Countries (%): DE: 100
Formations: Non Forest: 100% = Semi-aquatic: 100% (Haline water: 100%)
Guilds: all vascular plants: 100%
Plot size categories (%): 1-10 m2: 87%; 10-100 m2: 13%; unknowmn: 0%;
Environmental data (%): altitude: 100; land use categories: 100
Performance measure(s): cover: 100%; other: 80%
Geographic localisation: GPS coordinates (precision 25 m or less): 100%
Sampling periods:
Information as of 2026-04-05; further details and future updates available from http://www.givd.info/ID/EU-DE-033

Martin Stock* (martin.stock@lkn.landsh.de)
Umweltbeobachtung und Planungsgrundlagen, Nationalparkverwaltung, Schlossgarten 1, 25832 Tönning, GERMANY
* corresponding author