Výsledky vyhledávání

Linking the carbon and sulfur cycles in a historically brackish diked peatland: Stable Isotopes and FT-ICR-MS

Autor: Mary Zeller, Cátia von Ahn, Anna-Kathrina Jenner, Erwin Racasa, Amy McKenna, Manon Janssen, Michael Böttcher

Here we report on the porewater dissolved organic matter dynamics and underlying benthic biogeochemical processes in a historically brackish, diked, peatland located along the Baltic Sea in northeastern Germany. The regeneration process of the “Hei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2f88758c274b8fd83139cf4825a42b5
https://doi.org/10.5194/egusphere-egu22-9904

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Calcification-driven CO 2 emissions exceed 'Blue Carbon' sequestration in a carbonate seagrass meadow

Autor: Michael E. Böttcher, James W. Fourqurean, Helmuth Thomas, Mary Zeller, Christopher L. Osburn, Daniel Pröfrock, Tristan Zimmerman, Ashley R. Smyth, Bryce Van Dam, Christian Lopes

Publikováno v: Van Dam, B.; Zeller, M.; Lopes, C.; Smyth, A.; Böttcher, M.; Osburn, C.; Zimmerman, T.; Pröfrock, D.; Fourqurean, J.; Thomas, H.: Calcification-driven CO2 emissions exceed “Blue Carbon” sequestration in a carbonate seagrass meadow. In: Science Advances. Vol. 7 (2021) 51, eabj1372. (DOI: /10.1126/sciadv.abj1372)

Long-term “blue carbon” burial in seagrass meadows is complicated by other carbon and alkalinity exchanges that shape net carbon sequestration. We measured a suite of such processes, including denitrification, sulfur, and inorganic carbon cycling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdfb824547ccc60c40ffbaf605feda3c
https://doi.org/10.1126/sciadv.abj1372

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When 'Blue Carbon' turns white: Isotopic evidence of calcification-driven CO2 emissions in a carbonate seagrass meadow

Autor: Christopher L. Osburn, Helmuth Thomas, Michael E. Böttcher, Christian Lopes, Bryce Van Dam, Mary Zeller, Daniel Pröfrock, James W. Fourqurean, Tristan Zimmerman, Ashley R. Smyth

Seagrasses are often considered important players in the global carbon cycle, due to their role in sequestering and protecting sedimentary organic matter as “Blue Carbon”. However, in shallow calcifying systems the ultimate role of seagrass meado

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6372e3c840d5abb6c1ec10b309b0372c
https://doi.org/10.5194/egusphere-egu21-4539

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Controls on submarine groundwater discharge in an urbanized bay of the southern Baltic Sea: An isotope and trace metal perspective

Autor: Jan Scholten, Olaf Dellwig, Mary Zeller, Bo Liu, Svenja Papenmeier, Christoph Malik, Catia Milene Ehlert von Ahn, Anna-Kathrina Jenner, Peter Feldens, Iris Schmiedinger, Michael E. Böttcher

Submarine groundwater discharge (SGD) acts as a source of fresh water and dissolved substances for coastal ecosystems. Evaluation of the actual controls on SGD and corresponding chemical fluxes require a closer understanding of the processes that tak

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3fd18b6757edf8a1e18a6b02bd04fe6b
https://doi.org/10.5194/egusphere-egu21-2470

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After the flood: Impact of salt water intrusions on the isotope biogeochemistry of a rewetted coastal peatland

Autor: Julia Westphal, Mary Zeller, Michael E. Böttcher, Cátia M. E. von Ahn, Anna-K. Jenner, Lucas Winski, Iris Schmiedinger, Christoph Malik, Benjamin Rach

Land-ocean interactions in the coastal zone (LOICZ) are of particular interest regarding the exchange of water and elements, like nutrients, carbon, sulfur, and metals. Processes impacting groundwater fluxes at these boundaries belong to the still un

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59a9c0299c8bfca8ff5d12f81a7865ef
https://doi.org/10.5194/egusphere-egu21-3507

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Impact of bottom contact trawling on benthic biogeochemical cycling in the Southern Baltic Sea

Autor: Michael E. Böttcher, David Clemens, Mary Zeller, Jens Kallmeyer, Stefan Sommer, Peter Feldens, Mischa Schönke

Publikováno v: Goldschmidt2021 abstracts.

Bottom contact trawling from commercial fishing activity can have profound impacts on the sea floor, as trawling gear can both resuspend the surface sediments and shift sediment to the sides of the gear, forming furrows and mounds. This disturbance c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c5d9fbb6126a9d0dc3d66c0c258398c1
https://doi.org/10.7185/gold2021.7548

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Is carbonate sediment dissolution a significant source of dissolved organic matter to Florida Bay?

Autor: Christopher L. Osburn, Mary Zeller, Bryce Van Dam, Ashley R. Smyth, Chris Lopes, John S. Kominoski

Florida Bay is subtropical embayment characterized by dense Thalassia testudinum seagrass meadows, the prevalence of carbonate-rich sediments, and relatively long residence times (~1 yr). Florida Bay seagrass meadows store appreciable quantities of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37e6706c66491f815eb206edf6c7fba9
https://doi.org/10.5194/egusphere-egu2020-812

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Periodical

April SHOWERS.

Publikováno v: Birds & Blooms; Apr/May2023, Vol. 29 Issue 2, p38-39, 2p, 5 Color Photographs

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