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Koop-Jakobsen, Ketil (2023): Mesocosm experiment with salt marsh vegetation from the low marsh dominated by Elymus athericus and pioneer zone dominated by Spartina anglica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955057

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Abstract:
The data originates from a mesocosm experiment with salt marsh plants from the Wadden Sea (Hamburger Hallig: 54°36 06N, 8°49'08E), investigating the impact of increased temperature and CO₂ on salt marsh vegetation. The investigation was conducted over 100days from May to August 2021 using 12 largescale mesocosms (1900L) in a full factorial design with an enhancement of temperature to +3C above ambient temperature and CO2 enrichment of 800ppm. The ambient water temperature was identical to the temperature of the coastal water pumped into mesocosms ranging from 11-22°C over the 100 days of incubation. In the increased temperature treatments, the temperature was kept at 3°C above the ambient temperature, regulated via a system of heaters and coolers. In the ambient CO₂ treatments, atmospheric air was pumped into the systems and reached an air concentration of 380ppm, whereas in the enriched CO2 treatment, atmospheric air was enriched with CO₂ to a concentration of 800ppm and pumped into the systems. CO2 measured in the mesocosms air compartment was 50-150ppm above the ambient concentration, as some CO2 was lost to water and vegetation.
Keyword(s):
Biomass; Elymus; organic matter; pioneer zone; plants; salt marsh; Spartina; Vegetation; Wadden Sea
Supplement to:
Koop-Jakobsen, Ketil; Dolch, Tobias (2023): Future climate conditions alter biomass of salt marsh plants in the Wadden Sea. Marine Biodiversity, 53(3), 41, https://doi.org/10.1007/s12526-023-01347-y
Coverage:
Median Latitude: 54.602041 * Median Longitude: 8.818932 * South-bound Latitude: 54.601680 * West-bound Longitude: 8.818545 * North-bound Latitude: 54.602401 * East-bound Longitude: 8.819318
Date/Time Start: 2021-05-11T00:00:00 * Date/Time End: 2021-08-19T00:00:00
Event(s):
HH_Hallig_Low_marsh * Latitude: 54.601680 * Longitude: 8.819318 * Date/Time: 2021-08-19T00:00:00 * Location: Germany, Schleswig-Holstein * Method/Device: Sampling by hand (HAND) * Comment: Collection site for Elymus athericus dominated samples in the low marsh
HH_Hallig_Pioneer_zone * Latitude: 54.602401 * Longitude: 8.818545 * Date/Time: 2021-05-11T00:00:00 * Location: Germany, Schleswig-Holstein * Method/Device: Sampling by hand (HAND) * Comment: Collection site for Spartina anglica dominated samples in the Pioneer zone
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventKoop-Jakobsen, Ketil
2Experiment/study setupSetupKoop-Jakobsen, Ketil
3Date/time start, experimentDate/time start expKoop-Jakobsen, Ketil
4Date/time end, experimentDate/time end expKoop-Jakobsen, Ketil
5Sample commentSample commentKoop-Jakobsen, Ketil
6SpeciesSpeciesKoop-Jakobsen, Ketil
7Treatment: temperature descriptionT:Temp descrKoop-Jakobsen, Ketil
8Treatment: Carbon dioxideT:CO2Koop-Jakobsen, Ketil
9Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 1
10Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 2
11Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 3
12Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilCalculatedAverage
13Biomass, dry mass, standard deviationBiom dm std dev±Koop-Jakobsen, KetilCalculated
14Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 1
15Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 2
16Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 3
17Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCalculatedAverage
18Spartina anglica, stem density, standard deviationS. anglica stem den std dev±Koop-Jakobsen, KetilCalculated
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
384 data points

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