Ökad bentisk produktion av kvävedioxid och ammonium efter naturlig syresättning av långtidsanoxiska sediment - Processer och pooler i den bentiska kvävecykeln efter naturlig syresättning av långtidsanoxiskt sediment
Enhanced benthic nitrous oxide and ammonium production after natural oxygenation of long‐term anoxic sediments - Processes and pools in the benthic nitrogen cycle after natural oxygenation of long-term anoxic sediment
2022-12-1-1
https://doi.org/10.5878/7hr7-s215
Swedish National Data Service
Svensk nationell datatjänst
Landing page
Ökad bentisk produktion av kvävedioxid och ammonium efter naturlig syresättning av långtidsanoxiska sediment - Processer och pooler i den bentiska kvävecykeln efter naturlig syresättning av långtidsanoxiskt sediment
Enhanced benthic nitrous oxide and ammonium production after natural oxygenation of long‐term anoxic sediments - Processes and pools in the benthic nitrogen cycle after natural oxygenation of long-term anoxic sediment
2022-12-1-1
https://doi.org/10.5878/7hr7-s215
Hylén, Astrid
Hylén, Astrid
Bonaglia, Stefano
Bonaglia, Stefano
Robertson, Elizabeth
Robertson, Elizabeth
Marzocchi, Ugo
Marzocchi, Ugo
Kononets, Mikhail
Kononets, Mikhail
Hall, Per
Hall, Per
Swedish National Data Service
Svensk nationell datatjänst
2022-04-05
Landing page
Sediment Composition
Sediment Composition
Sediment Chemistry
Sediment Chemistry
marine sediment
mud (sediment)
mudder
sediment
sediment
biogeochemical process
nitrogen retention
nitrogen removal
nitrogen metabolism
ammonium nitrogen compounds
organic matter
organiskt material
nitrogen-15
dissolved inorganic nitrogen
nitrogen cycle
kvävets kretslopp
oxygen consumption
sediment organic content proportion
nitrogen-15 method
sediment chemistry
dissolved oxygen
upplöst syre
nitrogen dioxide
sediment content
sediment oxygen demand
marine sediment
Marine Sediments
Marine Sediments
stable isotope
chemistry
kemi
nitrogen cycling
ecosystem parameter
sediment
matter
process
chemical parameter
chemical substance
Oceans
Oceans
nutrient cycling
parameter
biological substance
natural science
object of interest
matrix
substance
method
metod
Earth Science
Earth Science
research topic
entity
Science Keywords
Science Keywords
research focus
Geochemistry
Geokemi
Oceanography, Hydrology and Water Resources
Oceanografi, hydrologi och vattenresurser
Environmental Management
Miljöledning
Earth and Related Environmental Sciences
Geovetenskap och miljövetenskap
Environmental Engineering
Naturresursteknik
Engineering and Technology
Teknik
Natural Sciences
Naturvetenskap
In this study, we describe the long-term impact of a natural oxygenation event on the fate of fixed nitrogen in the sediment. We investigated whether the newly oxygenated sediments were sites of efficient removal of fixed nitrogen through denitrification and anammox, which environmental factors affected the division between nitrate reduction processes, and whether nitrate from the water column or sedimentary nitrification was fuelling nitrate reduction processes in the sediment. We conducted three yearly samplings in 2016, 2017, and 2018, where we performed in situ measurements of nitrate reduction process rates and sediment–water fluxes of nutrients, oxygen and dissolved inorganic carbon . We additionally collected sediment samples and measured sediment microprofiles of oxygen, nitrous oxide and hydrogen sulphide to gain further insights into the spatial distribution of the processes in surface sediments.
The data set contains 5 files with the following data:
- Station information; locations, sediment surface and bottom water conditions
- Sediment properties; carbon and nitrogen in the sediment solid phase, porosity, pore water concentrations of NOx and NH4.
- Microsensor measurements of O2, N2O and H2S
- Sediment-water fluxes of oxygen, dissolved inorganic carbon, NH4 and NOx
- Nitrate reduction rates in the sediment
Full descriptions of the data can be found in the corresponding readme files accessible from the Data and documentation tab.
Studiens mål var att utvärdera hur ett syresatt vatteninflöde till de djupa delarna av Östersjön påverkade kvävecykeln i tidigare långtidsanoxiska sediment. Se utförlig beskrivning i den engelska versionen av katalogposten.
Datasetet innehåller 5 filer med följande data:
- Stationsinformation; koordinater, kemisk information om sedimentytan och bottenvattnet
- Sedimentegenskaper; kol och kväve i sedimentets fasta fas, porositet, koncentrationer av NOx och NH4 i porvattnet
- Mikrosensormätningar av O2, N2O och H2S
- Sediment-vattenflöden av syre, löst oorganiskt kol, NH4 och NOx
- Nitratreduktionshastigheter i sedimentet
Utförlig beskrivning av data finns i de tillhörande readme-filerna under fliken Data och dokumentation.
Access to data through SND. Data are freely accessible.
Åtkomst till data via SND. Data är fritt tillgängliga.