- About
- Editorial board
- Articles
- Special issues
- Highlight articles
- Manuscript tracking
- Subscribe to alerts
- Peer review
- For authors
- For reviewers
- EGU publications
- Imprint
- Data protection
Journal cover
Journal topic
Biogeosciences
An interactive open-access journal of the European Geosciences Union
Journal topic
- About
- Editorial board
- Articles
- Special issues
- Highlight articles
- Manuscript tracking
- Subscribe to alerts
- Peer review
- For authors
- For reviewers
- EGU publications
- Imprint
- Data protection
Journal metrics
Journal metrics
IF 3.951
4.699CiteScore
4.34SNIP 1.322
SJR 2.118
index 106h5-index 72
Abstracted/indexed
Abstracted/indexed- Science Citation Index Expanded
- Current Contents/ABE
- Current Contents/PCE
- Scopus
- ADS
- AGRICOLA
- Aquatic Sciences and Fisheries Abstracts
- CAB Abstracts
- Cabell's
- Chemical Abstracts
- CLOCKSS
- CNKI
- DOAJ
- EBSCO
- GBA
- Gale/Cengage
- GeoBase
- GeoRef
- GoOA (CAS)
- Google Scholar
- J-Gate
- Portico
- ProQuest
- World Public Library
Volume 10, issue 11
Biogeosciences, 10, 7509–7523, 2013
https://doi.org/10.5194/bg-10-7509-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-10-7509-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 10, 7509–7523, 2013
https://doi.org/10.5194/bg-10-7509-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-10-7509-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article 21 Nov 2013
Research article | 21 Nov 2013
Vertical activity distribution of dissimilatory nitrate reduction in coastal marine sediments
A. Behrendt et al.Related authors
No articles found.
Dirk Koopmans, Moritz Holtappels, Arjun Chennu, Miriam Weber, and Dirk de Beer
Biogeosciences Discuss., https://doi.org/10.5194/bg-2018-199, https://doi.org/10.5194/bg-2018-199, 2018
Revised manuscript not accepted
Short summary
Short summary
Over the next century the dissolved carbon dioxide gas and hydrogen ion concentrations in seawater will triple. We used a new technique that incorporates the net productivity of all organisms in a ten square meter area to examine what the future of seagrass might look like. We compared seagrass at a CO2 vent to seagrass at a conventional shore. Seagrass meadow productivity was reduced at the vent, but it is likely that contaminants in vent fluids may have been the cause.
P. Stief
Biogeosciences, 10, 7829–7846, https://doi.org/10.5194/bg-10-7829-2013, https://doi.org/10.5194/bg-10-7829-2013, 2013
D. de Beer, M. Haeckel, J. Neumann, G. Wegener, F. Inagaki, and A. Boetius
Biogeosciences, 10, 5639–5649, https://doi.org/10.5194/bg-10-5639-2013, https://doi.org/10.5194/bg-10-5639-2013, 2013
J. Felden, A. Lichtschlag, F. Wenzhöfer, D. de Beer, T. Feseker, P. Pop Ristova, G. de Lange, and A. Boetius
Biogeosciences, 10, 3269–3283, https://doi.org/10.5194/bg-10-3269-2013, https://doi.org/10.5194/bg-10-3269-2013, 2013
Related subject area
Biogeochemistry: Sediment
Organic matter contents and degradation in a highly trawled area during fresh particle inputs (Gulf of Castellammare, southwestern Mediterranean)
Identifying the core bacterial microbiome of hydrocarbon degradation and a shift of dominant methanogenesis pathways in the oil and aqueous phases of petroleum reservoirs of different temperatures from China
Effects of eutrophication on sedimentary organic carbon cycling in five temperate lakes
Evidence for microbial iron reduction in the methanic sediments of the oligotrophic southeastern Mediterranean continental shelf
Fracture-controlled fluid transport supports microbial methane-oxidizing communities at Vestnesa Ridge
Benthic alkalinity and DIC fluxes in the Rhône River prodelta generated by decoupled aerobic and anaerobic processes
Hydrothermal alteration of aragonitic biocarbonates: assessment of micro- and nanostructural dissolution–reprecipitation and constraints of diagenetic overprint from quantitative statistical grain-area analysis
Large variations in iron input to an oligotrophic Baltic Sea estuary: impact on sedimentary phosphorus burial
Vivianite formation in methane-rich deep-sea sediments from the South China Sea
Benthic archaea as potential sources of tetraether membrane lipids in sediments across an oxygen minimum zone
Carbon amendment stimulates benthic nitrogen cycling during the bioremediation of particulate aquaculture waste
Modelling biogeochemical processes in sediments from the north-western Adriatic Sea: response to enhanced particulate organic carbon fluxes
Carbon mineralization in Laptev and East Siberian sea shelf and slope sediment
Reviews and syntheses: to the bottom of carbon processing at the seafloor
Scotland's forgotten carbon: a national assessment of mid-latitude fjord sedimentary carbon stocks
Does denitrification occur within porous carbonate sand grains?
Sediment phosphorus speciation and mobility under dynamic redox conditions
Pore water geochemistry along continental slopes north of the East Siberian Sea: inference of low methane concentrations
Experimental diagenesis: insights into aragonite to calcite transformation of Arctica islandica shells by hydrothermal treatment
Manganese and iron reduction dominate organic carbon oxidation in surface sediments of the deep Ulleung Basin, East Sea
Carbonate chemistry in sediment porewaters of the Rhône River delta driven by early diagenesis (northwestern Mediterranean)
Anaerobic oxidation of methane alters sediment records of sulfur, iron and phosphorus in the Black Sea
Moderate topsoil erosion rates constrain the magnitude of the erosion-induced carbon sink and agricultural productivity losses on the Chinese Loess Plateau
Massive asphalt deposits, oil seepage, and gas venting support abundant chemosynthetic communities at the Campeche Knolls, southern Gulf of Mexico
Patterns of carbon processing at the seafloor: the role of faunal and microbial communities in moderating carbon flows
Quantitative sediment source attribution with compound-specific isotope analysis in a C3 plant-dominated catchment (central Switzerland)
Benthic phosphorus cycling in the Peruvian oxygen minimum zone
Microbial methanogenesis in the sulfate-reducing zone of surface sediments traversing the Peruvian margin
Nitrogen cycling in the deep sedimentary biosphere: nitrate isotopes in porewaters underlying the oligotrophic North Atlantic
Efficiency and adaptability of the benthic methane filter at Quepos Slide cold seeps, offshore of Costa Rica
Two-dimensional distribution of living benthic foraminifera in anoxic sediment layers of an estuarine mudflat (Loire estuary, France)
Effects of fluctuating hypoxia on benthic oxygen consumption in the Black Sea (Crimean shelf)
Soil carbon and nitrogen erosion in forested catchments: implications for erosion-induced terrestrial carbon sequestration
Multi-molecular tracers of terrestrial carbon transfer across the pan-Arctic: comparison of hydrolyzable components with plant wax lipids and lignin phenols
Effects of temperature and organic pollution on nutrient cycling in marine sediments
Organic-matter quality of deep permafrost carbon – a study from Arctic Siberia
Organic N and P in eutrophic fjord sediments – rates of mineralization and consequences for internal nutrient loading
Organic carbon production, mineralisation and preservation on the Peruvian margin
Authigenic apatite and octacalcium phosphate formation due to adsorption–precipitation switching across estuarine salinity gradients
A spatial investigation of the environmental controls over cryoconite aggregation on Longyearbreen glacier, Svalbard
Spatial variability and the fate of cesium in coastal sediments near Fukushima, Japan
Updated estimates of carbon accumulation rates in coastal marsh sediments
Optimizing sample pretreatment for compound-specific stable carbon isotopic analysis of amino sugars in marine sediment
Remobilisation of uranium from contaminated freshwater sediments by bioturbation
Technical Note: An X-ray absorption method for the identification of calcium phosphate species using peak-height ratios
Microbial activity and carbonate isotope signatures as a tool for identification of spatial differences in methane advection: a case study at the Pacific Costa Rican margin
Lack of 13C-label incorporation suggests low turnover rates of thaumarchaeal intact polar tetraether lipids in sediments from the Iceland shelf
Organic biomarkers in deep-sea regions affected by bottom trawling: pigments, fatty acids, amino acids and carbohydrates in surface sediments from the La Fonera (Palamós) Canyon, NW Mediterranean Sea
Technical Note: Simultaneous measurement of sedimentary N2 and N2O production and a modified 15N isotope pairing technique
Benthic fluxes of dissolved organic nitrogen in the lower St. Lawrence estuary and implications for selective organic matter degradation
Sarah Paradis, Antonio Pusceddu, Pere Masqué, Pere Puig, Davide Moccia, Tommaso Russo, and Claudio Lo Iacono
Biogeosciences, 16, 4307–4320, https://doi.org/10.5194/bg-16-4307-2019, https://doi.org/10.5194/bg-16-4307-2019, 2019
Short summary
Short summary
Chronic deep bottom trawling in the Gulf of Castellammare (SW Mediterranean) erodes large volumes of sediment, exposing over-century-old sediment depleted in organic matter. Nevertheless, the arrival of fresh and nutritious sediment recovers superficial organic matter in trawling grounds and leads to high turnover rates, partially and temporarily mitigating the impacts of bottom trawling. However, this deposition is ephemeral and it will be swiftly eroded by the passage of the next trawler.
Zhichao Zhou, Bo Liang, Li-Ying Wang, Jin-Feng Liu, Bo-Zhong Mu, Hojae Shim, and Ji-Dong Gu
Biogeosciences, 16, 4229–4241, https://doi.org/10.5194/bg-16-4229-2019, https://doi.org/10.5194/bg-16-4229-2019, 2019
Short summary
Short summary
This study shows a core bacterial microbiome with a small proportion of shared operational taxonomic units of common sequences among all oil reservoirs. Dominant methanogenesis shifts from the hydrogenotrophic pathway in water phase to the acetoclastic pathway in the oil phase at high temperatures, but the opposite is true at low temperatures. There are also major functional metabolism differences between the two phases for amino acids, hydrocarbons, and carbohydrates.
Annika Fiskal, Longhui Deng, Anja Michel, Philip Eickenbusch, Xingguo Han, Lorenzo Lagostina, Rong Zhu, Michael Sander, Martin H. Schroth, Stefano M. Bernasconi, Nathalie Dubois, and Mark A. Lever
Biogeosciences, 16, 3725–3746, https://doi.org/10.5194/bg-16-3725-2019, https://doi.org/10.5194/bg-16-3725-2019, 2019
Hanni Vigderovich, Lewen Liang, Barak Herut, Fengping Wang, Eyal Wurgaft, Maxim Rubin-Blum, and Orit Sivan
Biogeosciences, 16, 3165–3181, https://doi.org/10.5194/bg-16-3165-2019, https://doi.org/10.5194/bg-16-3165-2019, 2019
Short summary
Short summary
Microbial iron reduction participates in important biogeochemical cycles. In the last decade iron reduction has been observed in many aquatic sediments below its classical zone, in the methane production zone, suggesting a link between the two cycles. Here we present evidence for microbial iron reduction in the methanogenic depth of the oligotrophic SE Mediterranean continental shelf using mainly geochemical and microbial sedimentary profiles and suggest possible mechanisms for this process.
Haoyi Yao, Wei-Li Hong, Giuliana Panieri, Simone Sauer, Marta E. Torres, Moritz F. Lehmann, Friederike Gründger, and Helge Niemann
Biogeosciences, 16, 2221–2232, https://doi.org/10.5194/bg-16-2221-2019, https://doi.org/10.5194/bg-16-2221-2019, 2019
Short summary
Short summary
How methane is transported in the sediment is important for the microbial community living on methane. Here we report an observation of a mini-fracture that facilitates the advective gas transport of methane in the sediment, compared to the diffusive fluid transport without a fracture. We found contrasting bio-geochemical signals in these different transport modes. This finding can help to fill the gap in the fracture network system in modulating methane dynamics in surface sediments.
Jens Rassmann, Eryn M. Eitel, Cécile Cathalot, Christophe Brandily, Bruno Lansard, Martial Taillefert, and Chrsitophe Rabouille
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-32, https://doi.org/10.5194/bg-2019-32, 2019
Manuscript under review for BG
Laura A. Casella, Sixin He, Erika Griesshaber, Lourdes Fernández-Díaz, Martina Greiner, Elizabeth M. Harper, Daniel J. Jackson, Andreas Ziegler, Vasileios Mavromatis, Martin Dietzel, Anton Eisenhauer, Sabino Veintemillas-Verdaguer, Uwe Brand, and Wolfgang W. Schmahl
Biogeosciences, 15, 7451–7484, https://doi.org/10.5194/bg-15-7451-2018, https://doi.org/10.5194/bg-15-7451-2018, 2018
Short summary
Short summary
Biogenic carbonates record past environmental conditions. Fossil shell chemistry and microstructure change as metastable biogenic carbonates are replaced by inorganic calcite. Simulated diagenetic alteration at 175 °C of different shell microstructures showed that (nacreous) shell aragonite and calcite were partially replaced by coarse inorganic calcite crystals due to dissolution–reprecipitation reactions. EBSD maps allowed for qualitative assessment of the degree of diagenetic overprint.
Wytze K. Lenstra, Matthias Egger, Niels A. G. M. van Helmond, Emma Kritzberg, Daniel J. Conley, and Caroline P. Slomp
Biogeosciences, 15, 6979–6996, https://doi.org/10.5194/bg-15-6979-2018, https://doi.org/10.5194/bg-15-6979-2018, 2018
Short summary
Short summary
We show that burial rates of phosphorus (P) in an estuary in the northern Baltic Sea are very high. We demonstrate that at high sedimentation rates, P retention in the sediment is related to the formation of vivianite. With a reactive transport model, we assess the sensitivity of sedimentary vivianite formation. We suggest that enrichments of iron and P in the sediment are linked to periods of enhanced riverine input of Fe, which subsequently strongly enhances P burial in coastal sediments.
Jiarui Liu, Gareth Izon, Jiasheng Wang, Gilad Antler, Zhou Wang, Jie Zhao, and Matthias Egger
Biogeosciences, 15, 6329–6348, https://doi.org/10.5194/bg-15-6329-2018, https://doi.org/10.5194/bg-15-6329-2018, 2018
Short summary
Short summary
Our work provides new insights into the biogeochemical cycling of iron, methane and phosphorus. We found that vivianite, an iron-phosphate mineral, is pervasive in methane-rich sediments, suggesting that iron reduction at depth is coupled to phosphorus and methane cycling on a much greater spatial scale than previously assumed. Acting as an important burial mechanism for iron and phosphorus, vivianite authigenesis may be an under-considered process in both modern and ancient settings alike.
Marc A. Besseling, Ellen C. Hopmans, R. Christine Boschman, Jaap S. Sinninghe Damsté, and Laura Villanueva
Biogeosciences, 15, 4047–4064, https://doi.org/10.5194/bg-15-4047-2018, https://doi.org/10.5194/bg-15-4047-2018, 2018
Short summary
Short summary
Benthic archaea comprise a significant part of the total prokaryotic biomass in marine sediments. Here, we compared the archaeal diversity and intact polar lipid (IPL) composition in both surface and subsurface sediments with different oxygen regimes in the Arabian Sea oxygen minimum zone. The oxygenated sediments were dominated by Thaumarchaeota and IPL-GDGT-0. The anoxic sediment contained highly diverse archaeal communities and high relative abundances of IPL-GDGT-1 to -4.
Georgina Robinson, Thomas MacTavish, Candida Savage, Gary S. Caldwell, Clifford L. W. Jones, Trevor Probyn, Bradley D. Eyre, and Selina M. Stead
Biogeosciences, 15, 1863–1878, https://doi.org/10.5194/bg-15-1863-2018, https://doi.org/10.5194/bg-15-1863-2018, 2018
Short summary
Short summary
This study examined the effect of adding carbon to a sediment-based effluent treatment system to treat nitrogen-rich aquaculture waste. The research was conducted in incubation chambers to measure the exchange of gases and nutrients across the sediment–water interface and examine changes in the sediment microbial community. Adding carbon increased the amount of nitrogen retained in the treatment system, thereby reducing the levels of nitrogen needing to be discharged to the environment.
Daniele Brigolin, Christophe Rabouille, Bruno Bombled, Silvia Colla, Salvatrice Vizzini, Roberto Pastres, and Fabio Pranovi
Biogeosciences, 15, 1347–1366, https://doi.org/10.5194/bg-15-1347-2018, https://doi.org/10.5194/bg-15-1347-2018, 2018
Short summary
Short summary
We present the result of a study carried out in the north-western Adriatic Sea by combining two different types of models with field sampling. A mussel farm was taken as a local source of perturbation to the natural flux of particulate organic carbon to the sediment. Differences in fluxes were primarily associated with mussel physiological conditions. Although restricted, these changes in particulate organic carbon fluxes induced visible effects on sediment biogeochemistry.
Volker Brüchert, Lisa Bröder, Joanna E. Sawicka, Tommaso Tesi, Samantha P. Joye, Xiaole Sun, Igor P. Semiletov, and Vladimir A. Samarkin
Biogeosciences, 15, 471–490, https://doi.org/10.5194/bg-15-471-2018, https://doi.org/10.5194/bg-15-471-2018, 2018
Short summary
Short summary
We determined the aerobic and anaerobic degradation rates of land- and marine-derived organic material in East Siberian shelf sediment. Marine plankton-derived organic carbon was the main source for the oxic dissolved carbon dioxide production, whereas terrestrial organic material significantly contributed to the production of carbon dioxide under anoxic conditions. Our direct degradation rate measurements provide new constraints for the present-day Arctic marine carbon budget.
Jack J. Middelburg
Biogeosciences, 15, 413–427, https://doi.org/10.5194/bg-15-413-2018, https://doi.org/10.5194/bg-15-413-2018, 2018
Short summary
Short summary
Organic carbon processing at the seafloor is studied by geologists to better understand the sedimentary record, by biogeochemists to quantify burial and respiration, by organic geochemists to elucidate compositional changes, and by ecologists to follow carbon transfers within food webs. These disciplinary approaches have their strengths and weaknesses. This award talk provides a synthesis, highlights the role of animals in sediment carbon processing and presents some new concepts.
Craig Smeaton, William E. N. Austin, Althea L. Davies, Agnes Baltzer, John A. Howe, and John M. Baxter
Biogeosciences, 14, 5663–5674, https://doi.org/10.5194/bg-14-5663-2017, https://doi.org/10.5194/bg-14-5663-2017, 2017
Short summary
Short summary
Fjord sediments are recognised as hotspots for the burial and long-term storage of carbon. In this study, we use the Scottish fjords as a natural laboratory. Using geophysical and geochemical analysis in combination with upscaling techniques, we have generated the first full national sedimentary C inventory for a fjordic system. The results indicate that the Scottish fjords on a like-for-like basis are more effective as C stores than their terrestrial counterparts, including Scottish peatlands.
Perran Louis Miall Cook, Adam John Kessler, and Bradley David Eyre
Biogeosciences, 14, 4061–4069, https://doi.org/10.5194/bg-14-4061-2017, https://doi.org/10.5194/bg-14-4061-2017, 2017
Short summary
Short summary
Nitrogen is the key nutrient that typically limits productivity in coastal waters. One of the key controls on the amount of bioavailable nitrogen is the process of denitrification, which converts nitrate (bioavailable) into nitrogen gas. Previous studies suggest high rates of denitrification may take place within carbonate sediments, and one explanation for this is that this process may take place within the sand grains. Here we show evidence to support this hypothesis.
Chris T. Parsons, Fereidoun Rezanezhad, David W. O'Connell, and Philippe Van Cappellen
Biogeosciences, 14, 3585–3602, https://doi.org/10.5194/bg-14-3585-2017, https://doi.org/10.5194/bg-14-3585-2017, 2017
Short summary
Short summary
Phosphorus (P) has accumulated in sediments due to past human activities. The re-release of this P to water contributes to the growth of harmful algal blooms. Our research improves our mechanistic understanding of how P is partitioned between different chemical forms and between sediment and water under dynamic conditions. We demonstrate that P trapped within iron minerals may be less mobile during anoxic conditions than previously thought due to reversible changes to P forms within sediment.
Clint M. Miller, Gerald R. Dickens, Martin Jakobsson, Carina Johansson, Andrey Koshurnikov, Matt O'Regan, Francesco Muschitiello, Christian Stranne, and Carl-Magnus Mörth
Biogeosciences, 14, 2929–2953, https://doi.org/10.5194/bg-14-2929-2017, https://doi.org/10.5194/bg-14-2929-2017, 2017
Short summary
Short summary
Continental slopes north of the East Siberian Sea are assumed to hold large amounts of methane. We present pore water chemistry from the 2014 SWERUS-C3 expedition. These are among the first results generated from this vast climatically sensitive region, and they imply that abundant methane, including gas hydrates, do not characterize the East Siberian Sea slope or rise. This contradicts previous modeling and discussions, which due to the lack of data are almost entirely based assumption.
Laura A. Casella, Erika Griesshaber, Xiaofei Yin, Andreas Ziegler, Vasileios Mavromatis, Dirk Müller, Ann-Christine Ritter, Dorothee Hippler, Elizabeth M. Harper, Martin Dietzel, Adrian Immenhauser, Bernd R. Schöne, Lucia Angiolini, and Wolfgang W. Schmahl
Biogeosciences, 14, 1461–1492, https://doi.org/10.5194/bg-14-1461-2017, https://doi.org/10.5194/bg-14-1461-2017, 2017
Short summary
Short summary
Mollusc shells record past environments. Fossil shell chemistry and microstructure change as metastable biogenic aragonite transforms to stable geogenic calcite. We simulated this alteration of Arctica islandica shells by hydrothermal treatments. Below 175 °C the shell aragonite survived for weeks. At 175 °C the replacement of the original material starts after 4 days and yields submillimetre-sized calcites preserving the macroscopic morphology as well as the original internal micromorphology.
Jung-Ho Hyun, Sung-Han Kim, Jin-Sook Mok, Hyeyoun Cho, Tongsup Lee, Verona Vandieken, and Bo Thamdrup
Biogeosciences, 14, 941–958, https://doi.org/10.5194/bg-14-941-2017, https://doi.org/10.5194/bg-14-941-2017, 2017
Short summary
Short summary
The surface sediments of the Ulleung Basin (UB) in the East Sea are characterized by high organic carbon contents (> 2.5 %, dry wt.) and very high concentrations of Mn oxides (> 200 μmol cm−3) and Fe oxides (up to 100 μmol cm−3). For the first time in deep offshore sediments on the Asian margin with water depth over 2000 m, we report that Mn reduction and Fe reduction were the dominant organic carbon (Corg) oxidation pathways, comprising 45 % and 20 % of total Corg oxidation, respectively.
Jens Rassmann, Bruno Lansard, Lara Pozzato, and Christophe Rabouille
Biogeosciences, 13, 5379–5394, https://doi.org/10.5194/bg-13-5379-2016, https://doi.org/10.5194/bg-13-5379-2016, 2016
Short summary
Short summary
In situ O2 and pH measurements as well as determination of porewater concentrations of dissolved inorganic carbon, total alkalinity, sulfate and calcium have been measured in the sediments of the Rhône prodelta. Biogeochemical activity decreased with distance from the river mouth. Oxic processes decreased the carbonate saturation state (Ω) by lowering pH, whereas anaerobic organic matter degradation, dominated by sulfate reduction, was accompanied by increasing Ω and carbonate precipitation.
Matthias Egger, Peter Kraal, Tom Jilbert, Fatimah Sulu-Gambari, Célia J. Sapart, Thomas Röckmann, and Caroline P. Slomp
Biogeosciences, 13, 5333–5355, https://doi.org/10.5194/bg-13-5333-2016, https://doi.org/10.5194/bg-13-5333-2016, 2016
Short summary
Short summary
By combining detailed geochemical analyses with diagenetic modeling, we provide new insights into how methane dynamics may strongly overprint burial records of iron, sulfur and phosphorus in marine systems subject to changes in organic matter loading or water column salinity. A better understanding of these processes will improve our ability to read ancient sediment records and thus to predict the potential consequences of global warming and human-enhanced inputs of nutrients to the ocean.
Jianlin Zhao, Kristof Van Oost, Longqian Chen, and Gerard Govers
Biogeosciences, 13, 4735–4750, https://doi.org/10.5194/bg-13-4735-2016, https://doi.org/10.5194/bg-13-4735-2016, 2016
Short summary
Short summary
We used a novel approach to reassess erosion rates on the CLP. We found that both current average topsoil erosion rates and the maximum magnitude of the erosion-induced carbon sink are overestimated on the CLP. Although average topsoil losses on the CLP are still high, a major increase in agricultural productivity occurred since 1980. Hence, erosion is currently not a direct threat to agricultural productivity on the CLP but the long-term effects of erosion on soil quality remain important.
Heiko Sahling, Christian Borowski, Elva Escobar-Briones, Adriana Gaytán-Caballero, Chieh-Wei Hsu, Markus Loher, Ian MacDonald, Yann Marcon, Thomas Pape, Miriam Römer, Maxim Rubin-Blum, Florence Schubotz, Daniel Smrzka, Gunter Wegener, and Gerhard Bohrmann
Biogeosciences, 13, 4491–4512, https://doi.org/10.5194/bg-13-4491-2016, https://doi.org/10.5194/bg-13-4491-2016, 2016
Short summary
Short summary
We were excited about nature’s diversity when we discovered spectacular flows of heavy oil at the seafloor with the remotely operated vehicle QUEST 4000 m in Campeche Bay, southern Gulf of Mexico. Vigorous methane gas bubble emissions lead to massive gas hydrate deposits at water depth as deep as 3420 m. The hydrates formed metre-sized mounds at the seafloor that were densely overgrown by vestimentiferan tubeworms and other seep-typical organisms.
Clare Woulds, Steven Bouillon, Gregory L. Cowie, Emily Drake, Jack J. Middelburg, and Ursula Witte
Biogeosciences, 13, 4343–4357, https://doi.org/10.5194/bg-13-4343-2016, https://doi.org/10.5194/bg-13-4343-2016, 2016
Short summary
Short summary
Estuarine sediments are important locations for carbon cycling and burial. We used tracer experiments to investigate how site conditions affect the way in which seafloor biological communities cycle carbon. We showed that while total respiration rates are primarily determined by temperature, total carbon processing by the biological community is strongly related to
its biomass. Further, we saw a distinct pattern of carbon cycling in sandy sediment, in which uptake by bacteria dominates.
Christine Alewell, Axel Birkholz, Katrin Meusburger, Yael Schindler Wildhaber, and Lionel Mabit
Biogeosciences, 13, 1587–1596, https://doi.org/10.5194/bg-13-1587-2016, https://doi.org/10.5194/bg-13-1587-2016, 2016
Short summary
Short summary
Origin of suspended sediments in rivers is of crucial importance for optimization of catchment management. Sediment source attribution to a lowland river in central Switzerland with compound specific stable isotopes analysis (CSIA) indicated that 65 % of the suspended sediments originated from agricultural land during base flow, while forest was the dominant source during high flow. We achieved significant differences in CSIA signature from land uses dominated by C3 plant cultivation.
Ulrike Lomnitz, Stefan Sommer, Andrew W. Dale, Carolin R. Löscher, Anna Noffke, Klaus Wallmann, and Christian Hensen
Biogeosciences, 13, 1367–1386, https://doi.org/10.5194/bg-13-1367-2016, https://doi.org/10.5194/bg-13-1367-2016, 2016
Short summary
Short summary
The study presents a P budget including the P input from the water column, the P burial in the sediments, as well as the P release from the sediments. We found that the P input could not maintain the P release rates. Consideration of other P sources, e.g., terrigenous P and P released from the dissolution of Fe oxyhydroxides, showed that none of these can account for the missing P. Thus, it is likely that abundant sulfide-oxidizing bacteria release the missing P during our measurement period.
J. Maltby, S. Sommer, A. W. Dale, and T. Treude
Biogeosciences, 13, 283–299, https://doi.org/10.5194/bg-13-283-2016, https://doi.org/10.5194/bg-13-283-2016, 2016
Short summary
Short summary
The concurrence of methanogenesis and sulfate reduction was investigated in surface sediments (0–25cm b.s.f.) traversing the Peruvian margin. Surface methanogenesis was mainly based on non-competitive substrates to avoid competition with sulfate reducers. Accordingly, surface methanogenesis was mainly controlled by the availability of labile organic matter. The high relevance of surface methanogenesis especially on the shelf indicates its underestimated role within benthic methane budgeting.
S. D. Wankel, C. Buchwald, W. Ziebis, C. B. Wenk, and M. F. Lehmann
Biogeosciences, 12, 7483–7502, https://doi.org/10.5194/bg-12-7483-2015, https://doi.org/10.5194/bg-12-7483-2015, 2015
Short summary
Short summary
In the sediments underlying the global oligotrophic ocean, low levels of microbial activity persist, despite low input of organic matter from surface ocean productivity. Using measured nitrogen and oxygen isotopes of porewater nitrate we estimate the magnitude and extent of microbial nitrogen cycling. We find evidence for the overlap of both denitrification as well as autotrophic pathways such as nitrification and nitrogen fixation, pointing to a relatively large role for subsurface autotrophy.
P. Steeb, S. Krause, P. Linke, C. Hensen, A. W. Dale, M. Nuzzo, and T. Treude
Biogeosciences, 12, 6687–6706, https://doi.org/10.5194/bg-12-6687-2015, https://doi.org/10.5194/bg-12-6687-2015, 2015
Short summary
Short summary
We combined field, laboratory (sediment-flow-through system) and numerical modeling work to investigate cold seep sediments at Quespos Slide, offshore of Costa Rica. The results demonstrated the efficiency of the benthic methane filter and provided an estimate for its response time (ca. 170 days) to changes in fluid fluxes.
A. Thibault de Chanvalon, E. Metzger, A. Mouret, F. Cesbron, J. Knoery, E. Rozuel, P. Launeau, M. P. Nardelli, F. J. Jorissen, and E. Geslin
Biogeosciences, 12, 6219–6234, https://doi.org/10.5194/bg-12-6219-2015, https://doi.org/10.5194/bg-12-6219-2015, 2015
Short summary
Short summary
We present a new rapid and accurate protocol to simultaneously sample, in two dimensions, benthic living foraminifera at the centimetre scale and dissolved iron and phosphorus at the submillimetre scale. It was applied to a highly bioturbated site in a mudflat of the Loire estuary and showed that, in the suboxic zone, foraminifera are less affected by active burrows (i.e. reoxygenated) than by iron reactive hotspots. This unexpected result calls for a generalization of this new protocol.
A. Lichtschlag, D. Donis, F. Janssen, G. L. Jessen, M. Holtappels, F. Wenzhöfer, S. Mazlumyan, N. Sergeeva, C. Waldmann, and A. Boetius
Biogeosciences, 12, 5075–5092, https://doi.org/10.5194/bg-12-5075-2015, https://doi.org/10.5194/bg-12-5075-2015, 2015
E. M. Stacy, S. C. Hart, C. T. Hunsaker, D. W. Johnson, and A. A. Berhe
Biogeosciences, 12, 4861–4874, https://doi.org/10.5194/bg-12-4861-2015, https://doi.org/10.5194/bg-12-4861-2015, 2015
Short summary
Short summary
In the southern parts of the Sierra Nevada in California, we investigated erosion of carbon and nitrogen from low-order catchments. We found that eroded sediments were OM rich, with a potential for significant gaseous and dissolved loss of OM during transport or after depositional in downslope or downstream depositional landform positions.
X. Feng, Ö. Gustafsson, R. M. Holmes, J. E. Vonk, B. E. van Dongen, I. P. Semiletov, O. V. Dudarev, M. B. Yunker, R. W. Macdonald, D. B. Montluçon, and T. I. Eglinton
Biogeosciences, 12, 4841–4860, https://doi.org/10.5194/bg-12-4841-2015, https://doi.org/10.5194/bg-12-4841-2015, 2015
Short summary
Short summary
Currently very few studies have examined the distribution and fate of hydrolyzable organic carbon (OC) in Arctic sediments, whose fate remains unclear in the context of climate change. Our study focuses on the source, distribution and fate of hydrolyzable OC as compared with plant wax lipids and lignin phenols in the sedimentary particles of nine Arctic and sub-Arctic rivers. This multi-molecular approach allows for a comprehensive investigation of terrestrial OC transfer via Arctic rivers.
C. Sanz-Lázaro, T. Valdemarsen, and M. Holmer
Biogeosciences, 12, 4565–4575, https://doi.org/10.5194/bg-12-4565-2015, https://doi.org/10.5194/bg-12-4565-2015, 2015
J. Strauss, L. Schirrmeister, K. Mangelsdorf, L. Eichhorn, S. Wetterich, and U. Herzschuh
Biogeosciences, 12, 2227–2245, https://doi.org/10.5194/bg-12-2227-2015, https://doi.org/10.5194/bg-12-2227-2015, 2015
Short summary
Short summary
Climatic warming is affecting permafrost, including decomposition of organic matter (OM). However, quantitative data for the quality of OM and its availability for decomposition is limited. We analyzed the quality of OM in late Pleistocene (Yedoma) and Holocene (thermokarst) deposits. A lack of depth trends reveals a constant quality of OM showing that permafrost acts like a freezer, preserving OM quality. This OM will be susceptible to decomposition under climatic warming.
T. Valdemarsen, C. O. Quintana, M. R. Flindt, and E. Kristensen
Biogeosciences, 12, 1765–1779, https://doi.org/10.5194/bg-12-1765-2015, https://doi.org/10.5194/bg-12-1765-2015, 2015
A. W. Dale, S. Sommer, U. Lomnitz, I. Montes, T. Treude, V. Liebetrau, J. Gier, C. Hensen, M. Dengler, K. Stolpovsky, L. D. Bryant, and K. Wallmann
Biogeosciences, 12, 1537–1559, https://doi.org/10.5194/bg-12-1537-2015, https://doi.org/10.5194/bg-12-1537-2015, 2015
J. F. Oxmann and L. Schwendenmann
Biogeosciences, 12, 723–738, https://doi.org/10.5194/bg-12-723-2015, https://doi.org/10.5194/bg-12-723-2015, 2015
H. J. Langford, T. D. L. Irvine-Fynn, A. Edwards, S. A. Banwart, and A. J. Hodson
Biogeosciences, 11, 5365–5380, https://doi.org/10.5194/bg-11-5365-2014, https://doi.org/10.5194/bg-11-5365-2014, 2014
E. E. Black and K. O. Buesseler
Biogeosciences, 11, 5123–5137, https://doi.org/10.5194/bg-11-5123-2014, https://doi.org/10.5194/bg-11-5123-2014, 2014
X. Ouyang and S. Y. Lee
Biogeosciences, 11, 5057–5071, https://doi.org/10.5194/bg-11-5057-2014, https://doi.org/10.5194/bg-11-5057-2014, 2014
R. Zhu, Y.-S. Lin, J. S. Lipp, T. B. Meador, and K.-U. Hinrichs
Biogeosciences, 11, 4869–4880, https://doi.org/10.5194/bg-11-4869-2014, https://doi.org/10.5194/bg-11-4869-2014, 2014
S. Lagauzère, M. Motelica-Heino, E. Viollier, G. Stora, and J. M. Bonzom
Biogeosciences, 11, 3381–3396, https://doi.org/10.5194/bg-11-3381-2014, https://doi.org/10.5194/bg-11-3381-2014, 2014
J. F. Oxmann
Biogeosciences, 11, 2169–2183, https://doi.org/10.5194/bg-11-2169-2014, https://doi.org/10.5194/bg-11-2169-2014, 2014
S. Krause, P. Steeb, C. Hensen, V. Liebetrau, A. W. Dale, M. Nuzzo, and T. Treude
Biogeosciences, 11, 507–523, https://doi.org/10.5194/bg-11-507-2014, https://doi.org/10.5194/bg-11-507-2014, 2014
S. K. Lengger, Y. A. Lipsewers, H. de Haas, J. S. Sinninghe Damsté, and S. Schouten
Biogeosciences, 11, 201–216, https://doi.org/10.5194/bg-11-201-2014, https://doi.org/10.5194/bg-11-201-2014, 2014
E. Sañé, J. Martín, P. Puig, and A. Palanques
Biogeosciences, 10, 8093–8108, https://doi.org/10.5194/bg-10-8093-2013, https://doi.org/10.5194/bg-10-8093-2013, 2013
T.-C. Hsu and S.-J. Kao
Biogeosciences, 10, 7847–7862, https://doi.org/10.5194/bg-10-7847-2013, https://doi.org/10.5194/bg-10-7847-2013, 2013
M. Alkhatib, P. A. del Giorgio, Y. Gelinas, and M. F. Lehmann
Biogeosciences, 10, 7609–7622, https://doi.org/10.5194/bg-10-7609-2013, https://doi.org/10.5194/bg-10-7609-2013, 2013
Cited articles
An, S. M. and Gardner, W. S.: Dissimilatory nitrate reduction to ammonium (DNRA) as a nitrogen link, versus denitrification as a sink in a shallow estuary (Laguna Madre/Baffin Bay, Texas), Mar. Ecol. Prog.-Ser., 237, 41–50, 2002.
Andersen, K., Kjaer, T., and Revsbech, N. P.: An oxygen insensitive microsensor for nitrous oxide, Sens. Actuator B-Chem., 81, 42–48, 2001.
Berg, P., Klemedtsson, L., and Rosswall, T.: Inhibitory effect of low partial pressures of acetylene on nitrification, Soil Biol. Biochem., 14, 301–303, https://doi.org/10.1016/0038-0717(82)90041-4, 1982.
Billerbeck, M., Werner, U., Polerecky, L., Walpersdorf, E., deBeer, D., and Huettel, M.: Surficial and deep pore water circulation governs spatial and temporal scales of nutrient recycling in intertidal sand flat sediment, Mar. Ecol. Prog.-Ser., 326, 61–76, 2006.
Bonin, P., Omnes, P., and Chalamet, A.: Simultaneous occurrence of denitrification and nitrate ammonification in sediments of the French Mediterranean Coast, Hydrobiologia, 389, 169–182, 1998.
Boudreau, B. P.: The diffusive tortuosity of fine-grained unlithified sediments, Geochim. Cosmochim. Ac, 60, 3139–3142, 1996.
Bower, C. E. and Holm-Hansen, T.: A salicylate-hypochlorite method for determining ammonium in seawater, Can. J. Fish. Aquat. Sci., 37, 794–798, 1980.
Braman, R. S. and Hendrix, S. A.: Nanogram nitrite and nitrate determination in environmental and biological materials by vanadium(III) reduction with chemiluminescence detection, Anal. Chem., 61, 2715–2718, 1989.
Brettar, I. and Rheinheimer, G.: Denitrification in the Central Baltic: evidence for H2S-oxidation as motor of denitrification at the oxic-anoxic interface, Mar. Ecol. Prog.-Ser., 77, 157–169, 1991.
Brinkhoff, T., Santegoeds, C. M., Sahm, K., Kuever, J., and Muyzer, G.: A polyphasic approach to study the diversity and vertical distribution of sulfur-oxidizing Thiomicrospira species in coastal sediments of the German Wadden Sea, Applied Environ. Microb., 64, 4650–4657, 1998.
Broecker, W. S. and Peng, T. H.: Gas exchange rates between air and sea, Tellus, 26, 21–35, 1974.
Brunet, R. C. and GarciaGil, L. J.: Sulfide-induced dissimilatory nitrate reduction to ammonia in anaerobic freshwater sediments, FEMS Microbiol. Ecol., 21, 131–138, 1996.
Burgin, A. J. and Hamilton, S. K.: Have we overemphasized the role of denitrification in aquatic ecosystems? A review of nitrate removal pathways, Front. Ecol. Environ., 5, 89–96, 2007.
Christensen, P. B., Rysgaard, S., Sloth, N. P., Dalsgaard, T., and Schwaerter, S.: Sediment mineralization, nutrient fluxes, denitrification and dissimilatory nitrate reduction to ammonium in an estuarine fjord with sea cage trout farms, Aquat. Microb. Ecol., 21, 73–84, 2000.
Christensen, P. B., Glud, R. N., Dalsgaard, T., and Gillespie, P.: Impacts of longline mussel farming on oxygen and nitrogen dynamics and biological communities of coastal sediments, Aquaculture, 218, 567–588, 2003.
Dalsgaard, T., Thamdrup, B., and Canfield, D. E.: Anaerobic ammonium oxidation (anammox) in the marine environment, Rese. Microbiol., 156, 457–464, https://doi.org/10.1016/j.resmic.2005.01.011, 2005.
Dong, L. F., Smith, C. J., Papaspyrou, S., Stott, A., Osborn, A. M., and Nedwell, D. B.: Changes in Benthic Denitrification, Nitrate Ammonification, and Anammox Process Rates and Nitrate and Nitrite Reductase Gene Abundances along an Estuarine Nutrient Gradient (the Colne Estuary, United Kingdom), Appl. Environ. Microb., 75, 3171–3179, 2009.
Dong, L. F., Sobey, M. N., Smith, C. J., Rusmana, I., Phillips, W., Stott, A., Osborn, A. M., and Nedwell, D. B.: Dissimilatory reduction of nitrate to ammonium, not denitrification or anammox, dominates benthic nitrate reduction in tropical estuaries, Limnol. Oceanogr., 56, 279-291, 2011.
Dunn, R. J. K., Welsh, D. T., Jordan, M. A., Waltham, N. J., Lemckert, C. J., and Teasdale, P. R.: Benthic metabolism and nitrogen dynamics in a sub-tropical coastal lagoon: Microphytobenthos stimulate nitrification and nitrate reduction through photosynthetic oxygen evolution, Estuar. Coast. Shelf S., 113, 272–282, 2012.
Edwards, L., Kuesel, K., Drake, H., and Kostka, J. E.: Electron flow in acidic subsurface sediments co-contaminated with nitrate and uranium, Geochim. Cosmochim. Ac., 71, 643–654, 2007.
Fazzolari, E., Nicolardot, B., and Germon, J. C.: Simultaneous effects of increasing levels of glucose and oxygen partial pressures on denitrification and dissimilatory nitrate reduction to ammonium in repacked soil cores, Eur. J. Soil Biol., 34, 47–52, 1998.
Fernandes, S. O., Bonin, P. C., Michotey, V. D., Garcia, N., and LokaBharathi, P. A.: Nitrogen-limited mangrove ecosystems conserve N through dissimilatory nitrate reduction to ammonium, Sci. Rep., 2, 1–5, https://doi.org/10.1038/srep00419 2012.
Gao, H., Schreiber, F., Collins, G., Jensen, M. M., Svitlica, O., Kostka, J. E., Lavik, G., de Beer, D., Zhou, H.-Y., and Kuypers, M. M. M.: Aerobic denitrification in permeable Wadden Sea sediments (vol 4, p. 417, 2010), Isme J., 5, 776–776, https://doi.org/10.1038/ismej.2010.166, 2011.
Gardner, W. S. and McCarthy, M. J.: Nitrogen dynamics at the sediment-water interface in shallow, sub-tropical Florida Bay: why denitrification efficiency may decrease with increased eutrophication, Biogeochem., 95, 185–198, 2009.
Gardner, W. S., McCarthy, M. J., An, S., Sobolev, D., Sell, K. S., and Brock, D.: Nitrogen fixation and dissimilatory nitrate reduction to ammonium (DNRA) support nitrogen dynamics in Texas estuaries, Limnol. Oceanogr., 51, 558–568, 2006.
Gilbert, F., Souchu, P., Bianchi, M., and Bonin, P.: Influence of shellfish farming activities on nitrification, nitrate reduction to ammonium and denitrification at the water-sediment interface of the Thau lagoon, France, Mar. Ecol. Prog.-Ser., 151, 143–153, 1997.
Herbert, R. A.: Nitrogen cycling in coastal marine ecosystems, Fems Microbiol. Rev., 23, 563–590, 1999.
Jansen, S., Walpersdorf, E., Werner, U., Billerbeck, M., Bottcher, M. E., and de Beer, D.: Functioning of intertidal flats inferred from temporal and spatial dynamics of O2, H2S and pH in their surface sediment, Ocean Dynam., 59, 317–332, 2009.
Jensen, M. M., Thamdrup, B., and Dalsgaard, T.: Effects of specific inhibitors on anammox and denitrification in marine sediments, Appl. Environ. Microb., 73, 3151–3158, https://doi.org/10.1128/aem.01898-06, 2007.
Jeroschewski, P., Steuckart, C., and Kuhl, M.: An amperometric microsensor for the determination of H2S in aquatic environments, Anal. Chem., 68, 4351–4357, 1996.
Jørgensen, K. S.: Annual pattern of denitrification and nitrate ammonification in estuarine sediment, Appl. Environ. Microb., 55, 1841–1847, 1989.
Kamp, A., de Beer, D., Nitsch, J. L., Lavik, G., and Stief, P.: Diatoms respire nitrate to survive dark and anoxic conditions, Proc. Natl. Acad. Sci. USA, 108, 5649–5654, 2011.
Kelly-Gerreyn, B. A., Trimmer, M., and Hydes, D. J.: A diagenetic model discriminating denitrification and dissimilatory nitrate reduction to ammonium in a temperate estuarine sediment, Mar. Ecol. Prog.-Ser., 220, 33–46, 2001.
Kelso, B. H. L., Smith, R. V., and Laughlin, R. J.: Effects of carbon substrates on nitrite accumulation in freshwater sediments, Appl. Environ. Microb., 65, 61–66, 1999.
King, D. and Nedwell, D. B.: The influence of nitrate concentration upon the end-products of nitrate dissimilation by bacteria in anaerobic salt marsh sediment, FEMS Microbiol. Ecol., 31, 23–28, 1985.
Koop-Jakobsen, K. and Giblin, A. E.: The effect of increased nitrate loading on nitrate reduction via denitrification and DNRA in salt marsh sediments, Limnol.Oceanogr., 55, 789–802, 2010.
Kostka, J. E. and Luther, G. W.: Partitioning and speciation of solid phase iron in saltmarsh sediments, Geochim. Cosmochim. Ac., 58, 1701–1710, 1994.
Lansdown, K., Trimmer, M., Heppell, C. M., Sgouridis, F., Ullah, S., Heathwaite, A. L., Binley, A., and Zhang, H.: Characterisation of the key pathways of dissimilatory nitrate reduction and their response to complex organic substrates in hyporheic sediments, Limnol. Oceanogr., 57, 387–400, 2012.
Larsen, L. H., Kjaer, T., and Revsbech, N. P.: A microscale NO3- biosensor for environmental applications, Anal. Chem., 69, 3527–3531, 1997.
Laverman, A. M., Van Cappellen, P., van Rotterdam-Los, D., Pallud, C., and Abell, J.: Potential rates and pathways of microbial nitrate reduction in coastal sediments, FEMS Microbiol. Ecol., 58, 179–192, 2006.
Li, Y. H. and Gregory, S.: Diffusion of ions in sea water and in deep-sea sediments, Geochim. Cosmochim. Ac., 38, 703–714, 1974.
Lomstein, E., Jensen, M. H., and Sorensen, J.: Benthic NH4+ and NO3- flux following sedimentation of a spring phytoplankton bloom in Aarhus Bight, Denmark, Mar. Ecol. Prog.-Ser., 61, 97–105, https://doi.org/10.3354/meps061097, 1990.
Lovley, D. R., Holmes, D. E., and Nevin, K. P.: Dissimilatory Fe(III) and Mn(IV) reduction, Adv. Microb. Physiol., 49, 219–286, 2004.
McHatton, S. C., Barry, J. P., Jannasch, H. W., and Nelson, D. C.: High nitrate concentrations in vacuolate, autotrophic marine Beggiatoa spp, Appl. Environ. Microb., 62, 954–958, 1996.
Megonigal, J. P., Hines, M. E., and Visscher, P. T.: Anaerobic metabolism: linkages to trace gases and aerobic processes, edited by: Schlesinger, W. H., Biogeochemistry, vol 8, Biogeochemistry, Elsevier, Oxford, 2003.
Millero, F. J., Plese, T., and Fernandez, M.: The dissociation of hydrogen sulfide in seawater, Limnol. Oceanogr., 33, 269–274, 1988.
Nizzoli, D., Welsh, D. T., Fano, E. A., and Viaroli, P.: Impact of clam and mussel farming on benthic metabolism and nitrogen cycling, with emphasis on nitrate reduction pathways, Mar. Ecol. Prog.-Ser., 315, 151–165, 2006.
Ogilvie, B. G., Rutter, M., and Nedwell, D. B.: Selection by temperature of nitrate-reducing bacteria from estuarine sediments: Species composition and competition for nitrate, FEMS Microbiol. Ecol., 23, 11–22, 1997.
Porubsky, W. P., Weston, N. B., and Joye, S. B.: Benthic metabolism and the fate of dissolved inorganic nitrogen in intertidal sediments, Estuar. Coast. Shelf S., 83, 392–402, 2009.
Prokopenko, M. G., Sigman, D. M., Berelson, W. M., Hammond, D. E., Barnett, B., Chong, L., and Townsend-Small, A.: Denitrification in anoxic sediments supported by biological nitrate transport, Geochim. Cosmochim. Ac., 75, 7180–7199, 2011.
Revsbech, N. P.: An oxygen microsensor with a guard cathode, Limnol. Oceanogr., 34, 474–478, 1989.
Revsbech, N. P., Risgaard-Petersen, N., Schramm, A., and Nielsen, L. P.: Nitrogen transformations in stratified aquatic microbial ecosystems, Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, 90, 361–375, 2006.
Risgaard-Petersen, N., Rysgaard, S., and Revsbech, N. P.: Combined microdiffusion-hypobromite oxidation method for determining nitrogen-15 isotope in ammonium, Soil Sci. Soc. Am. J., 59, 1077–1080, 1995.
Risgaard-Petersen, N., Langezaal, A. M., Ingvardsen, S., Schmid, M. C., Jetten, M. S. M., Op den Camp, H. J. M., Derksen, J. W. M., Pina-Ochoa, E., Eriksson, S. P., Nielsen, L. P., Revsbech, N. P., Cedhagen, T., and van der Zwaan, G. J.: Evidence for complete denitrification in a benthic foraminifer, Nature, 443, 93–96, 2006.
Røy, H., Lee, J. S., Jansen, S., and de Beer, D.: Tide-driven deep pore-water flow in intertidal sand flats, Limnol. Oceanogr., 53, 1521–1530, 2008.
Sayama, M.: Presence of nitrate-accumulating sulfur bacteria and their influence on nitrogen cycling in a shallow coastal marine sediment, Appl. Environ. Microb., 67, 3481–3487, 2001.
Schulthess, P., Shijo, Y., Pham, H. V., Pretsch, E., Ammann, D., and Simon, W.: A hydrogen ion-selective liquid-membrane electrode based on tri-n-dodecylamine as neutral carrier, Anal. Chim. Acta, 131, 111–116, 1981.
Seitzinger, S. P.: Denitrification in freshwater and coastal marine ecosystems: ecological and geochemical significance, Limnol. Oceanogr., 33, 702–724, 1988.
Shao, M., Zhang, T., and Fang, H. H. P.: Autotrophic denitrification and its effect on metal speciation during marine sediment remediation, Water Res., 43, 2961–2968, 2009.
Simpson, S. L.: A rapid screening method for acid-volatile sulfide in sediments, Environ. Toxicol. Chem., 20, 2657–2661, 2001.
Smyth, A. R., Thompson, S. P., Siporin, K. N., Gardner, W. S., McCarthy, M. J., and Piehler, M. F.: Assessing nitrogen dynamics throughout the estuarine landscape, Estuar. Coast., 36, 44–55, 2013.
Sørensen, J.: Denitrification rates in a marine sediment as measured by the acetylene inhibition technique, Appl. Environ. Microb., 36, 139–143, 1978.
Sørensen, J., Tiedje, J. M., and Firestone, R. B.: Inhibition by sulfide of nitric and nitrous oxide reduction by denitrifying Pseudomonas fluorescen, Appl. Environ. Microb., 39, 105–108, 1980.
Sørensen, J., Rasmussen, L. K., and Koike, I.: Micromolar sulfide concentrations alleviate acetylene blockage of nitrous oxide reduction by denitrifying Pseudomonas fluorescens, Can. J. Microbiol., 33, 1001–1005, 1987.
Stief, P., Behrendt, A., Lavik, G., and De Beer, D.: Combined gel probe and isotope labeling technique for measuring dissimilatory nitrate reduction to ammonium in sediments at millimeter-level resolution, Appl. Environ. Microb., 76, 6239–6247, 2010.
Stief, P., Kamp, A., and De Beer, D.: Role of diatoms in the spatial-temporal distribution of intracellular nitrate in intertidal sediment, Plos ONE, 8, e73257, https://doi.org/10.1371/journal.pone.0073257, 2013.
Strohm, T. O., Griffin, B., Zumft, W. G., and Schink, B.: Growth yields in bacterial denitrification and nitrate ammonification, Appl. Environ. Microb., 73, 1420–1424, 2007.
Thamdrup, B.: New Pathways and Pprocesses in the global nitrogen cycle, Annu. Rev. Ecol. Evol. S., 43, 407–428, 2012.
Thamdrup, B. and Dalsgaard, T.: Nitrogen cycling in sediments, in: Microbial ecology of the oceans, edited by: Kirchman, D. L., 2nd ed, John Wiley and Sons, 527–568, 2008.
Tiedje, J. M., Sexstone, A. J., Myrold, D. D., and Robinson, J. A.: Denitrification: ecological niches, competition and survival, Antonie Van Leeuwenhoek Journal of Microbiology, 48, 569–583, 1982.
Tiedje, J. M.: Ecology of denitrification and dissimilatory nitrate reduction to ammonium, in: Biology of anaerobicmicroorganisms, edited by: Zehnder, A. J. B., John Wiley and Sons, 179–244, 1988.
Viollier, E., Inglett, P. W., Hunter, K., Roychoudhury, A. N., and Van Cappellen, P.: The ferrozine method revisited: Fe(II)/Fe(III) determination in natural waters, Appl. Geochem., 15, 785–790, 2000.
Warembourg, F. R.: Nitrogen fixation in soil and plant systems, in: In R. Knowles and T. H. Blackburn (ed.), Nitrogen isotope techniques, Academic Press, New York, 157–180, 1993.
Weber, K. A., Achenbach, L. A., and Coates, J. D.: Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction, Nat. Rev. Microbiol., 4, 752–764, 2006a.
Weber, K. A., Pollock, J., Cole, K. A., O'Connor, S. M., Achenbach, L. A., and Coates, J. D.: Anaerobic nitrate-dependent iron(II) bio-oxidation by a novel lithoautotrophic betaproteobacterium, strain 2002, Appl. Environ. Microb., 72, 686–694, 2006b.
Weber, K. A., Urrutia, M. M., Churchill, P. F., Kukkadapu, R. K., and Roden, E. E.: Anaerobic redox cycling of iron by freshwater sediment microorganisms, Environ. Microb., 8, 100–113, 2006c.
Yin, S. X., Chen, D., Chen, L. M., and Edis, R.: Dissimilatory nitrate reduction to ammonium and responsible microorganisms in two Chinese and Australian paddy soils, Soil Biol. Biochem., 34, 1131–1137, 2002.
Biogeosciences
An interactive open-access journal of the European Geosciences Union
