Výsledky vyhledávání - "Viktoria Unger"

Akademický článek

Unraveling the Importance of Polyphenols for Microbial Carbon Mineralization in Rewetted Riparian Peatlands

Autor: Dominik Zak, Cyril Roth, Viktoria Unger, Tobias Goldhammer, Nathalie Fenner, Chris Freeman, Gerald Jurasinski

Publikováno v: Frontiers in Environmental Science, Vol 7 (2019)

There have been widespread attempts to rewet peatlands in Europe and elsewhere in the world to restore their unique biodiversity as well as their important function as nutrient and carbon sinks. However, changes in hydrological regime and therefore o

Externí odkaz: https://doaj.org/article/d5b88d9a05f54070879207eaf7f5c8ec

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Akademický článek

Understanding the Coastal Ecocline: Assessing Sea–Land Interactions at Non-tidal, Low-Lying Coasts Through Interdisciplinary Research

Publikováno v: Frontiers in Marine Science, Vol 5 (2018)

Coastal zones connect terrestrial and marine ecosystems forming a unique environment that is under increasing anthropogenic pressure. Rising sea levels, sinking coasts, and changing precipitation patterns modify hydrodynamic gradients and may enhance

Externí odkaz: https://doaj.org/article/27607c044f5840ea9a5f69f363de401c

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Effects of brackish water inflow on methane-cycling microbial communities in a freshwater rewetted coastal fen

Autor: Cordula Nina Gutekunst, Susanne Liebner, Anna-Kathrina Jenner, Klaus-Holger Knorr, Viktoria Unger, Franziska Koebsch, Erwin Don Racasa, Sizhong Yang, Michael Ernst Böttcher, Manon Janssen, Jens Kallmeyer, Denise Otto, Iris Schmiedinger, Lucas Winski, Gerald Jurasinski

Publikováno v: Biogeosciences
eISSN

Rewetted peatlands can be a significant source of methane (CH4), but in coastal ecosystems, input of sulfate-rich seawater could potentially mitigate these emissions. The presence of sulfate as an electron acceptor during organic matter decomposition

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ce7cac32985d62852723ac83e9dfe82
https://doi.org/10.5194/bg-19-3625-2022

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Inflow of brackish water and a preceding drought changes methanecycling microbial communities in a freshwater rewetted coastal fen

Autor: Cordula Gutekunst, Susanne Liebner, Anna-Kathrina Jenner, Klaus-Holger Knorr, Viktoria Unger, Franziska Koebsch, Erwin Don Racasa, Sizhong Yang, Michael Ernst Böttcher, Manon Janssen, Jens Kallmeyer, Denise Otto, Iris Schmiedinger, Lucas Winski, Gerald Jurasinski

Publikováno v: Abstracts

Rewetted peatlands can be a significant source of methane, but in coastal systems, input of sulfate-rich seawater could potentially reduce these emissions. The presence of sulfate is known to suppress methanogenesis, by encouraging the growth of sulf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e63e568cbbdb7c8ffd4473025e88049
https://doi.org/10.5194/egusphere-egu22-8384

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Effects of saltwater intrusion on the methane-cycling microbial community of a freshwater rewetted coastal fen

Autor: Anna-K. Jenner, Klaus-Holger Knorr, Franziska Koebsch, Gerald Jurasinski, Cordula Gutekunst, Susanne Liebner, Michael E. Böttcher, Viktoria Unger, Jens Kallmeyer, Sizhong Yang

Drainage of peatlands for intensive and long-term agricultural use leads to higher mineralization rates of the organic material and thus, increased carbon dioxide (CO2) emissions. However, when degraded peatlands are rewetted, high methane (CH4) emis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec01848972f90b338e32fe4ecff9f699
https://doi.org/10.5194/egusphere-egu21-3328

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Managed peatlands as novel ecosystems

Autor: Vytas Huth, Susanne Liebner, Florian Beyer, Franziska Koebsch, Daniel Köhn, Marian Koch, Anke Günther, Viktoria Unger, Cordula Gutekunst, Gerald Jurasinski

Although peatlands cover only about 3% of the land surface of the Earth they store approx. 42% of all soil carbon, if not considerably more, as newest model approaches suggest. Only a minor fraction of all peatlands (5%) is drained, making up a total

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a0124ef9c683109638a074050c086a7e
https://doi.org/10.5194/egusphere-egu2020-10302

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Congruent changes in microbial community dynamics and ecosystem methane fluxes following natural drought in two restored fens

Autor: Viktoria Unger, Sizhong Yang, Susanne Liebner, Torsten Sachs, Klaus-Holger Knorr, Jens Kallmeyer, Gregor Rehder, Franziska Koebsch, Pia Gottschalk, Fabian Horn, Gerald Jurasinski

Publikováno v: Soil Biology and Biochemistry

Both the frequency and intensity of drought events are expected to increase, with unresolved alterations to peatland methane cycling and the involved microbial communities. While existing studies have assessed drought effects via experimental approac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d14058074c3b0a81155946b7e9dffd6
https://doi.org/10.1016/j.soilbio.2021.108348

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Stability of organic carbon accumulating in Spartina alterniflora-dominated salt marshes of the Mid-Atlantic U.S

Autor: Christopher K. Sommerfield, David J. Velinsky, Tracy Elsey-Quirk, Viktoria Unger

Publikováno v: Estuarine, Coastal and Shelf Science. 182:179-189

Organic carbon sequestration in salt marsh soils is a function of factors that influence both spatial variability and chemical stability of accumulating carbon. Refractory carbon (slowly decomposed) may be the most important in terms of long-term seq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e80599579616e7921837d9c097417b1
https://doi.org/10.1016/j.ecss.2016.10.001

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Sulfate deprivation triggers high methane production in a disturbed and rewetted coastal peatland

Autor: Franziska Koebsch, Matthias Winkel, Susanne Liebner, Bo Liu, Julia Westphal, Iris Schmiedinger, Alejandro Spitzy, Matthias Gehre, Gerald Jurasinski, Stefan Köhler, Viktoria Unger, Marian Koch, Torsten Sachs, Michael E. Böttcher

Publikováno v: Biogeosciences Discussions
EPIC3Biogeosciences, 16(9), pp. 1937-1953
Biogeosciences

In natural coastal wetlands, high supplies of marine sulfate suppress methanogenesis. Coastal wetlands are, however, often subject to disturbance by diking and drainage for agricultural use and can turn to potent methane sources when rewetted for rem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e852391d8f4a8f74cc4fb97d4eb30b
https://doi.org/10.5194/bg-2018-416

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