Biogeosciences
Biogeosciences
BG
The following lists the recent preprints posted on EGUsphere with BG-related topics as well as final revised papers published recently in BG.
06 Feb 2026
Reconstructing changes in nitrogen input to the Danube-influenced Black Sea Shelf during the Holocene
Andreas Neumann, Justus E. E. van Beusekom, Alexander Bratek, Jana Friedrich, Jürgen Möbius, Tina Sanders, Hendrik Wolschke, and Kirstin Dähnke
Biogeosciences, 23, 1103–1116, https://doi.org/10.5194/bg-23-1103-2026,https://doi.org/10.5194/bg-23-1103-2026, 2026
Short summary
06 Feb 2026
Effects of intensified freeze-thaw frequency on dynamics of winter nitrogen resources in temperate grasslands
Chaoxue Zhang, Na Li, Chunyue Yao, Jinan Gao, and Linna Ma
Biogeosciences, 23, 1117–1135, https://doi.org/10.5194/bg-23-1117-2026,https://doi.org/10.5194/bg-23-1117-2026, 2026
Short summary
06 Feb 2026
Community structures and taphonomic controls on benthic foraminiferal community from an Antarctic Fjord (Edisto Inlet, Victoria Land)
Giacomo Galli, Francesca Caridi, Patrizia Giordano, Caterina Morigi, Anna Sabbatini, and Leonardo Langone
Biogeosciences, 23, 1137–1157, https://doi.org/10.5194/bg-23-1137-2026,https://doi.org/10.5194/bg-23-1137-2026, 2026
Short summary
06 Feb 2026
Understanding the resilient carbon cycle response to the 2014–2015 Blob event in the Gulf of Alaska using a regional ocean biogeochemical model
Yumi Abe, Takamitsu Ito, Amanda H. V. Timmerman, Christopher T. Reinhard, and Joseph P. Montoya
EGUsphere, https://doi.org/10.5194/egusphere-2026-657,https://doi.org/10.5194/egusphere-2026-657, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
05 Feb 2026
| Highlight paper
Northward shift of boreal tree cover confirmed by satellite record
Min Feng, Joseph O. Sexton, Panshi Wang, Paul M. Montesano, Leonardo Calle, Nuno Carvalhais, Benjamin Poulter, Matthew J. Macander, Michael A. Wulder, Margaret Wooten, William Wagner, Akiko Elders, Saurabh Channan, and Christopher S. R. Neigh
Biogeosciences, 23, 1089–1101, https://doi.org/10.5194/bg-23-1089-2026,https://doi.org/10.5194/bg-23-1089-2026, 2026
Short summary Co-editor-in-chief
05 Feb 2026
Monthly element ∕ Ca trends and inter chamber variability in two planktic Foraminifera species: Globigerinoides ruber albus and Turborotalita clarkei from a hypersaline oligotrophic sea
Noy Levy, Adi Torfstein, Ralf Schiebel, Natalie Chernihovsky, Klaus Peter Jochum, Ulrike Weis, Brigitte Stoll, and Gerald H. Haug
Biogeosciences, 23, 1065–1088, https://doi.org/10.5194/bg-23-1065-2026,https://doi.org/10.5194/bg-23-1065-2026, 2026
Short summary
05 Feb 2026
Tropical forest responses to climate extremes: an analysis using an individual-based demographic vegetation model
Mazen Nakad, Mahmoud Mbarak, Jihad Karaki, Tehreem Qureshi, Matteo Detto, Benjamin I. Cook, Marcos Longo, Géraldine Derroire, Xiangtao Xu, Jeremy Lichstein, Zong-Liang Yang, Pierre Gentine, and Ensheng Weng
EGUsphere, https://doi.org/10.5194/egusphere-2026-145,https://doi.org/10.5194/egusphere-2026-145, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
05 Feb 2026
Drought responses of a Norway spruce forest on drained peat soil: combining sap-flow sensors, eddy-covariance, soil and UAV data
Pavel Konstantinovich Alekseychik, Mikko Peltoniemi, Raisa Mäkipää, Ville Tuominen, Tuomas Laurila, Hamlyn Jones, Mitro Müller, Evgeny Lopatin, Helena Rautakoski, Timo Vesala, and Samuli Launiainen
EGUsphere, https://doi.org/10.5194/egusphere-2026-568,https://doi.org/10.5194/egusphere-2026-568, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
04 Feb 2026
Machine learning for estimating phytoplankton size structure from satellite ocean color imagery in optically complex Pacific Arctic waters
Hisatomo Waga, Amane Fujiwara, Wesley J. Moses, Steven G. Ackleson, Daniel Koestner, Maria Tzortziou, Kyle Turner, Alana Menendez, Toru Hirawake, Koji Suzuki, and Sei-Ichi Saitoh
Biogeosciences, 23, 1043–1064, https://doi.org/10.5194/bg-23-1043-2026,https://doi.org/10.5194/bg-23-1043-2026, 2026
Short summary
04 Feb 2026
BrGDGT-based palaeothermometer in drylands: the necessity to constrain aridity and salinity as confounding factors to ensure the robustness of calibrations
Lucas Dugerdil, Sébastien Joannin, Odile Peyron, Shafag Bayramova, Xiaozhong Huang, Fahu Chen, Dilfuza Egamberdieva, Jakhongir Alimov, Bazartseren Boldgiv, Amy Cromartie, Juzhi Hou, Lilit Sahakyan, Khachatur Meliksetian, Salomé Ansanay-Alex, Rafig Safarov, Imran Muradi, Shabnam Isayeva, Shehla Mirzayeva, Elshan Abdullayev, Sayyara Ibadullayeva, Parvana Garakhani, and Guillemette Ménot
Biogeosciences, 23, 1013–1042, https://doi.org/10.5194/bg-23-1013-2026,https://doi.org/10.5194/bg-23-1013-2026, 2026
Short summary
04 Feb 2026
Sensitivity and Uncertainty Analysis of China's Terrestrial Carbon-Water Cycle Using a Dynamic Global Vegetation Model
Fulai Feng, Jianwu Yan, Wei Liang, Xiaohong Liu, Bo Liu, Xiaoru Liang, Jia Wei, and Yangcan Bao
EGUsphere, https://doi.org/10.5194/egusphere-2025-6076,https://doi.org/10.5194/egusphere-2025-6076, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
04 Feb 2026
Technical note: Kinetically resolved volatile and redox fingerprints of geologic materials by TGA/DSC-MicroGC
Shuzhuang Wu, Samuel L. Jaccard, and Matthieu E. Galvez
EGUsphere, https://doi.org/10.5194/egusphere-2026-321,https://doi.org/10.5194/egusphere-2026-321, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
04 Feb 2026
Nitrous oxide dynamics across nitrogen and pH gradients in headwater streams
Mette Vodder Carstensen, Annelies J. Veraart, Ida F. Peterse, Nicole Wrage-Mönnig, and Joachim Audet
EGUsphere, https://doi.org/10.5194/egusphere-2026-455,https://doi.org/10.5194/egusphere-2026-455, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
04 Feb 2026
Holocene methane pockmarks in the Baltic Sea, Part I: Archaeal community composition based on tetraether lipids and 16S rRNA analysis
Izabela De Mey-Śnieżyńska, Mirosław Słowakiewicz, Francien Peterse, Aleksandra Brodecka-Goluch, Andrzej Borkowski, and Katarzyna Łukawska-Matuszewska
EGUsphere, https://doi.org/10.5194/egusphere-2026-519,https://doi.org/10.5194/egusphere-2026-519, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
03 Feb 2026
Perturbation increases source-dependent organic matter degradation rates in estuarine sediments
Guangnan Wu, Klaas G. J. Nierop, Bingjie Yang, Stefan Schouten, Gert-Jan Reichart, and Peter Kraal
Biogeosciences, 23, 995–1012, https://doi.org/10.5194/bg-23-995-2026,https://doi.org/10.5194/bg-23-995-2026, 2026
Short summary
03 Feb 2026
Effects of fire and grazing on biogeochemical cycles in Brazilian pastures using LPJmL5-Pasture-Burning
Marie Brunel, Stephen B. Wirth, Markus Drüke, Kirsten Thonicke, Henrique Barbosa, Jens Heinke, and Susanne Rolinski
Biogeosciences, 23, 939–965, https://doi.org/10.5194/bg-23-939-2026,https://doi.org/10.5194/bg-23-939-2026, 2026
Short summary
03 Feb 2026
Reconstruction and spatiotemporal analysis of global surface ocean pCO2 considering sea area characteristics
Huisheng Wu, Yunlong Ji, Lejie Wang, Xiaoke Liu, Wenliang Zhou, Long Cui, Yang Wang, Min Liu, and Zhuang Li
Biogeosciences, 23, 967–994, https://doi.org/10.5194/bg-23-967-2026,https://doi.org/10.5194/bg-23-967-2026, 2026
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03 Feb 2026
Biogeochemical Dichotomy and Intra-Order Variability in Miliolid and Rotaliid Foraminifera
Lin Hoober, Barak Herut, Nadya Teutsch, Sarit Ashckenazi-Polivoda, Adi Torfstein, and Sigal Abramovich
EGUsphere, https://doi.org/10.5194/egusphere-2026-38,https://doi.org/10.5194/egusphere-2026-38, 2026
Preprint under review for BG (discussion: open, 1 comment)
Short summary
03 Feb 2026
Absence of nitrogen threshold effect on soil respiration leads to an underestimation of global soil carbon sequestration in model
Daju Wang, Ruowen Yang, Lei Cai, Pierre Gentine, César Terrer, Shuli Niu, Mirco Migliavacca, Wenping Yuan, Ryunosuke Tateno, Junlan Xiao, Josep Peñuelas, Caixian Tang, Yongshuo H. Fu, and Weiyu Shi
EGUsphere, https://doi.org/10.5194/egusphere-2026-296,https://doi.org/10.5194/egusphere-2026-296, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
02 Feb 2026
Proteomic and biogeochemical perspectives on cyanobacteria nutrient acquisition – Part 1: Zonal gradients in phosphorus and nitrogen acquisition and stress revealed by metaproteomes of Prochlorococcus and Synechococcus
Claire Mahaffey, Noelle A. Held, Korinne Kunde, Clare Davis, Neil Wyatt, E. Matthew R. McIlvin, E. Malcolm S. Woodward, Lewis Wrightson, Alessandro Tagliabue, Maeve C. Lohan, and Mak Saito
Biogeosciences, 23, 905–922, https://doi.org/10.5194/bg-23-905-2026,https://doi.org/10.5194/bg-23-905-2026, 2026
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02 Feb 2026
Proteomic and biogeochemical perspectives on cyanobacteria nutrient acquisition – Part 2: quantitative contributions of cyanobacterial alkaline phosphatases to bulk enzymatic rates in the subtropical North Atlantic
Noelle A. Held, Korinna Kunde, Clare E. Davis, Neil J. Wyatt, Elizabeth L. Mann, E. Malcolm S. Woodward, Matthew McIlvin, Alessandro Tagliabue, Benjamin S. Twining, Claire Mahaffey, Mak A. Saito, and Maeve C. Lohan
Biogeosciences, 23, 923–938, https://doi.org/10.5194/bg-23-923-2026,https://doi.org/10.5194/bg-23-923-2026, 2026
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02 Feb 2026
Seasonality of the North Pacific Oligotrophic Gyre area in the past two decades and a modelling perspective for the 21st century
Siyu Meng, Xun Gong, Benjamin G. M. Webber, Manoj Joshi, Xiaokun Ding, Xiang Gong, Mingliang Gu, and Huiwang Gao
Biogeosciences, 23, 867–879, https://doi.org/10.5194/bg-23-867-2026,https://doi.org/10.5194/bg-23-867-2026, 2026
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02 Feb 2026
| Highlight paper
Machine-learning models of δ13C and δ15N isoscapes in Amazonian wood
Isabela M. Souza-Silva, Luiz A. Martinelli, Brent Holmes, Ana C. G. Batista, Maria G. S. Araújo, Anna L. Garção, Stéphane Ponton, Peter Groenendijk, Giuliano M. Locosselli, Daigard R. Ortega-Rodriguez, Deoclecio J. Amorim, Fábio J. V. Costa, Gabriela B. Nardoto, Alexandre T. Brunello, Vladimir Eliodoro Costa, Gabriel Assis-Pereira, Mario Tomazello-Filho, Niro Higuchi, Ana C. Barbosa, João Paulo Sena-Souza, and Clément P. Bataille
Biogeosciences, 23, 881–904, https://doi.org/10.5194/bg-23-881-2026,https://doi.org/10.5194/bg-23-881-2026, 2026
Short summary Co-editor-in-chief
02 Feb 2026
Air–Sea Interactions and Biogeochemical Responses to Medicane Daniel
Babita Jangir and Ehud Strobach
EGUsphere, https://doi.org/10.5194/egusphere-2025-6375,https://doi.org/10.5194/egusphere-2025-6375, 2026
Preprint under review for BG (discussion: open, 1 comment)
Short summary
30 Jan 2026
Carbon sequestration along a gradient of tidal marsh degradation in response to sea level rise
Mona Huyzentruyt, Maarten Wens, Gregory S. Fivash, David Walters, Steven Bouillon, Joel Carr, Glenn Guntenspergen, Matt L. Kirwan, and Stijn Temmerman
Biogeosciences, 23, 851–865, https://doi.org/10.5194/bg-23-851-2026,https://doi.org/10.5194/bg-23-851-2026, 2026
Short summary
30 Jan 2026
A case for a pragmatic oxygen-based approach to quantifying the biological contribution to the marine carbon sink
Wolfgang Koeve and Ivy Frenger
EGUsphere, https://doi.org/10.5194/egusphere-2026-304,https://doi.org/10.5194/egusphere-2026-304, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
30 Jan 2026
Unlocking the air: DNA metabarcoding sheds light on seasonal fungal dynamics in a temperate floodplain forest
Ettore Fedele, Christina M. Müller, Volker Wissemann, Birgit Gemeinholzer, Christian Wirth, and Beatriz Sánchez-Parra
EGUsphere, https://doi.org/10.5194/egusphere-2026-372,https://doi.org/10.5194/egusphere-2026-372, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
29 Jan 2026
| Highlight paper
Assessment of the Cape Blanc (northwest Africa) upwelling ecosystem response to recent climate change, using wavelet analyses on dinoflagellate cyst export
Surya Eldo V. Roza, Runa T. Reuter, Jan-Berend W. Stuut, Gerard J. M. Versteegh, Vera Pospelova, Iria García-Moreiras, and Karin A. F. Zonneveld
Biogeosciences, 23, 831–850, https://doi.org/10.5194/bg-23-831-2026,https://doi.org/10.5194/bg-23-831-2026, 2026
Short summary Co-editor-in-chief
29 Jan 2026
Context-dependent plant–soil regulation of tree water transport in tropical forests
Mahmuda Islam, Md Morsalin, Md. Shakirul Islam Shavi, Saima Hossain Charu, Fahmida Sultana, Mohammed Abu Sayeed Arfin-Khan, and Mizanur Rahman
EGUsphere, https://doi.org/10.5194/egusphere-2026-14,https://doi.org/10.5194/egusphere-2026-14, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
29 Jan 2026
Plant belowground traits indicate increased plant-mediated methane transport along a peatland permafrost thaw gradient
Tiia Määttä, Samantha Bosman, Jeffrey Chanton, Patrick Crill, Suzanne Hodgkins, Jalisha Theanutti Kallingal, Rachel Wilson, Ruth Varner, and Avni Malhotra
EGUsphere, https://doi.org/10.5194/egusphere-2026-467,https://doi.org/10.5194/egusphere-2026-467, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
28 Jan 2026
Phenology-modulated Crop Responses to the 2024 Spring-Early Summer Compound Dry-Hot Event in the North China Plain
Linying Ma, Jun Wang, Zishan Wang, Qian Zhang, Ran Yan, Zhi Huang, Yabin Ye, Hao Zheng, Shuyue Xiao, Xiaokang Zhang, Zhenhai Li, Hongzhang Wang, Tao Wei, Haijin Dai, Meirong Wang, and Xiuying Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2026-142,https://doi.org/10.5194/egusphere-2026-142, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
27 Jan 2026
Conceptualising carbon cycling pathways across different land-use types based on rates and ages of soil-respired CO2
Luisa I. Minich, Dylan Geissbühler, Stefan Tobler, Annegret Udke, Alexander S. Brunmayr, Margaux Moreno Duborgel, Ciriaco McMackin, Lukas Wacker, Philip Gautschi, Negar Haghipour, Markus Egli, Ansgar Kahmen, Jens Leifeld, Timothy I. Eglinton, and Frank Hagedorn
Biogeosciences, 23, 811–829, https://doi.org/10.5194/bg-23-811-2026,https://doi.org/10.5194/bg-23-811-2026, 2026
Short summary
27 Jan 2026
How does biotic weathering work? Influence of alpine plants on rock temperature and rock moisture
Oliver Sass, Urte Bauer, Anke Jentsch, and Thomas Deola
EGUsphere, https://doi.org/10.5194/egusphere-2025-6223,https://doi.org/10.5194/egusphere-2025-6223, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
26 Jan 2026
Ecosystem-scale greenhouse gas fluxes from actively extracted peatlands: water table depth drives interannual variability
Miranda L. Hunter, Ian B. Strachan, Paul Moore, Sara Knox, and Maria Strack
Biogeosciences, 23, 793–810, https://doi.org/10.5194/bg-23-793-2026,https://doi.org/10.5194/bg-23-793-2026, 2026
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26 Jan 2026
| Highlight paper
Quantifying the time of emergence of the anthropogenic signal in the global land carbon sink
Na Li, Sebastian Sippel, Nora Linscheid, Miguel D. Mahecha, Markus Reichstein, and Ana Bastos
Biogeosciences, 23, 767–792, https://doi.org/10.5194/bg-23-767-2026,https://doi.org/10.5194/bg-23-767-2026, 2026
Short summary Co-editor-in-chief
26 Jan 2026
Sea-level rise in a coastal marsh: linking increasing tidal inundation, decreasing soil strength and increasing pond expansion
Mona Huyzentruyt, Lennert Schepers, Matthew L. Kirwan, Glenn R. Guntenspergen, and Stijn Temmerman
Biogeosciences, 23, 751–766, https://doi.org/10.5194/bg-23-751-2026,https://doi.org/10.5194/bg-23-751-2026, 2026
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26 Jan 2026
Variability of greenhouse gas (CH4 and CO2) emissions in a subtropical hydroelectric reservoir: Nam Theun 2 (Lao PDR)
Anh-Thái Hoàng, Frédéric Guérin, Chandrashekhar Deshmukh, Axay Vongkhamsao, Saysoulinthone Sopraseuth, Vincent Chanudet, Stéphane Descloux, Nurholis Nurholis, Ari Putra Susanto, Toan Vu Duc, and Dominique Serça
Biogeosciences, 23, 727–749, https://doi.org/10.5194/bg-23-727-2026,https://doi.org/10.5194/bg-23-727-2026, 2026
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26 Jan 2026
Drivers of phytoplankton bloom interannual variability in the Amundsen and Pine Island Polynyas
Guillaume Liniger, Delphine Lannuzel, Sébastien Moreau, Michael S. Dinniman, and Peter G. Strutton
Biogeosciences, 23, 665–682, https://doi.org/10.5194/bg-23-665-2026,https://doi.org/10.5194/bg-23-665-2026, 2026
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26 Jan 2026
Upscaling of soil methane fluxes from topographic attributes derived from a digital elevation model in a cold temperate mountain forest
Sumonta Kumar Paul, Keisuke Yuasa, Masako Dannoura, and Daniel Epron
Biogeosciences, 23, 683–708, https://doi.org/10.5194/bg-23-683-2026,https://doi.org/10.5194/bg-23-683-2026, 2026
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26 Jan 2026
Atmospheric nitrogen deposition fluxes into coastal wetlands and their impacts on ecosystem carbon sequestration in East Asia
Jia Liu, Yan Zhang, Shenglan Jiang, Yuqi Xiong, Chenji Jin, Qi Yu, and Weichun Ma
Biogeosciences, 23, 709–725, https://doi.org/10.5194/bg-23-709-2026,https://doi.org/10.5194/bg-23-709-2026, 2026
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26 Jan 2026
Cold winters, warm summers, no dry season: greenhouse gas emissions from forest organic soils in the Köppen–Geiger Dfb climate zone
Aldis Butlers, Arta Bārdule, Ieva Līcīte, Andis Lazdiņš, and Muhammad Kamil-Sardar
EGUsphere, https://doi.org/10.5194/egusphere-2026-162,https://doi.org/10.5194/egusphere-2026-162, 2026
Preprint under review for BG (discussion: open, 0 comments)
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23 Jan 2026
Seasonal Contrast in Rare Earth Elements Concentration in Sediment of the Mackenzie Delta
Thomas Bossé-Demers, Bennet Juhls, Martine Lizotte, Santiago Mareque, Audrey Gaudy, and Raoul-Marie Couture
EGUsphere, https://doi.org/10.5194/egusphere-2026-266,https://doi.org/10.5194/egusphere-2026-266, 2026
Preprint under review for BG (discussion: open, 0 comments)
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23 Jan 2026
Towards Constraining the Drivers of Variability and Trends in Subantarctic Productivity
Christopher D. Traill, Tyler W. Rohr, Elizabeth H. Shadwick, Pearse J. Buchanan, Alessandro Tagliabue, and Andrew R. Bowie
EGUsphere, https://doi.org/10.5194/egusphere-2026-44,https://doi.org/10.5194/egusphere-2026-44, 2026
Preprint under review for BG (discussion: open, 0 comments)
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23 Jan 2026
Benthic foraminiferal species tolerance for hydrothermal activity: a case of study from the Lucky Strike vent field
Pierre-Antoine Dessandier, Giuliana Panieri, Riwan Leroux, Ewan Pelleter, Sandra Fuchs, Alizé Bouriat, Audrey Boissier, Sandrine Cheron, and Jozée Sarrazin
EGUsphere, https://doi.org/10.5194/egusphere-2026-133,https://doi.org/10.5194/egusphere-2026-133, 2026
Preprint under review for BG (discussion: open, 0 comments)
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22 Jan 2026
Machine learning-based Alpine treeline ecotone detection on Xue Mountain in Taiwan
Geng-Gui Wang, Min-Chun Liao, Wei Wang, Hui Ping Tsai, and Hsy-Yu Tzeng
Biogeosciences, 23, 623–638, https://doi.org/10.5194/bg-23-623-2026,https://doi.org/10.5194/bg-23-623-2026, 2026
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22 Jan 2026
Glaciogenic iron transport pathways to the Kerguelen offshore phytoplankton bloom
Alex Nalivaev, Francesco d'Ovidio, Laurent Bopp, Maristella Berta, Louise Rousselet, Clara Azarian, and Stéphane Blain
Biogeosciences, 23, 639–663, https://doi.org/10.5194/bg-23-639-2026,https://doi.org/10.5194/bg-23-639-2026, 2026
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22 Jan 2026
Reviews and syntheses: The role of process-based modeling of the CO2 : CH4 production ratio in predicting future terrestrial Arctic methane emissions
Marius Moser, Lara Kaiser, Victor Brovkin, and Christian Beer
Biogeosciences, 23, 605–621, https://doi.org/10.5194/bg-23-605-2026,https://doi.org/10.5194/bg-23-605-2026, 2026
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22 Jan 2026
| Highlight paper
Culturing experiments reveal mechanisms of daily trace element incorporation into Tridacna shells
Iris Arndt, Jonathan Erez, David Evans, Tobias Erhardt, Adam Levi, and Wolfgang Müller
Biogeosciences, 23, 585–603, https://doi.org/10.5194/bg-23-585-2026,https://doi.org/10.5194/bg-23-585-2026, 2026
Short summary Co-editor-in-chief
22 Jan 2026
Quantifying the impact of groundwater fauna and temperature on the ecosystem service of microbial carbon degradation
Susanne Schmidt, Nora Rütz, and Jürgen Marxsen
External preprint server, https://doi.org/10.1101/2025.07.26.665685,https://doi.org/10.1101/2025.07.26.665685, 2026
Preprint under review for BG (discussion: open, 0 comments)
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22 Jan 2026
Experimental assessment of benthic foraminifera as salinity bioindicators: Integrating morphological and eDNA approaches
Yifei Cao, Wenlong Fa, and Yanli Lei
EGUsphere, https://doi.org/10.5194/egusphere-2026-196,https://doi.org/10.5194/egusphere-2026-196, 2026
Preprint under review for BG (discussion: open, 2 comments)
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22 Jan 2026
Objective biome classification across global vegetation models reveals consistent biome shifts under future climate change
Simon Scheiter, Jinfeng Chang, Philippe Ciais, Marie Dury, Louis Francois, Matthew Forrest, Alexandra Henrot, Christopher P. O. Reyer, Sonia Seneviratne, Jörg Steinkamp, Wim Thiery, Wenfang Xu, and Thomas Hickler
EGUsphere, https://doi.org/10.5194/egusphere-2026-221,https://doi.org/10.5194/egusphere-2026-221, 2026
Preprint under review for BG (discussion: open, 1 comment)
Short summary
22 Jan 2026
Carbon flux responses to seasonal and annual hydroclimatic variability in a tropical dry forest in South Ecuador
Charuta Murkute, Franz Pucha-Cofrep, Galo Carrillo-Rojas, Jürgen Homeier, Oliver Limberger, Andreas Fries, Jörg Bendix, and Katja Trachte
EGUsphere, https://doi.org/10.5194/egusphere-2026-222,https://doi.org/10.5194/egusphere-2026-222, 2026
Preprint under review for BG (discussion: open, 0 comments)
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22 Jan 2026
The efficiency and ocean acidification mitigation potential of ocean alkalinity enhancement on multi-centennial timescales
Hendrik Grosselindemann, Friedrich A. Burger, and Thomas L. Frölicher
EGUsphere, https://doi.org/10.5194/egusphere-2026-255,https://doi.org/10.5194/egusphere-2026-255, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
21 Jan 2026
| Highlight paper
Multi-scale dynamics of carbon dioxide flux and its environmental drivers in the Pantanal wetland
Tarcis A. O. dos Santos, Alberto S. de Arruda, Paulo H. Z. de Arruda, and Gilney F. Zebende
Biogeosciences, 23, 565–583, https://doi.org/10.5194/bg-23-565-2026,https://doi.org/10.5194/bg-23-565-2026, 2026
Short summary Co-editor-in-chief
21 Jan 2026
Trait-based mechanisms underpin regional hotspot of diatom-driven carbon export in an oligotrophic gyre
Feng Li, Hongzhen Jiang, Linwei Liu, Zhouyi Jiang, Lu Huang, Kehui Feng, Zuozhu Wen, Xin Liu, Changping Chen, Kuanbo Zhou, and Junrong Liang
EGUsphere, https://doi.org/10.5194/egusphere-2026-2,https://doi.org/10.5194/egusphere-2026-2, 2026
Preprint under review for BG (discussion: open, 0 comments)
Short summary
21 Jan 2026
Disentangling the drivers of soil CO2 ventilation in a Mediterranean dryland using in situ and remote sensing techniques
Jesús Abril-Gago, Irene Tovar, Enrique Echeverría-Martín, Juana Andújar-Maqueda, Pablo Ortiz-Amezcua, Germán Cabrera-Carrillo, Penélope Serrano-Ortiz, Francisco Domingo, Lucas Alados-Arboledas, Andrew S. Kowalski, Enrique P. Sánchez-Cañete, and Juan Luis Guerrero-Rascado
EGUsphere, https://doi.org/10.5194/egusphere-2026-91,https://doi.org/10.5194/egusphere-2026-91, 2026
Preprint under review for BG (discussion: open, 0 comments)
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21 Jan 2026
Dissolved organic carbon-mediated controls dominate soil carbon mineralization in response to freeze-thaw cycles
Jiaxin Yan, Jinyang Zheng, Shuai Zhang, Mingming Wang, Ting Sun, Jiajun Mao, and Zhongkui Luo
EGUsphere, https://doi.org/10.5194/egusphere-2026-139,https://doi.org/10.5194/egusphere-2026-139, 2026
Preprint under review for BG (discussion: open, 0 comments)
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20 Jan 2026
| BG Letters
| Highlight paper
A novel laser-based spectroscopic method reveals the isotopic signatures of nitrous oxide produced by eukaryotic and prokaryotic phototrophs in darkness
Maxence Plouviez, Peter Sperlich, Benoit Guieysse, Tim Clough, Rahul Peethambaran, and Naomi Wells
Biogeosciences, 23, 497–508, https://doi.org/10.5194/bg-23-497-2026,https://doi.org/10.5194/bg-23-497-2026, 2026
Short summary Co-editor-in-chief
20 Jan 2026
Spatiotemporal heterogeneity in diazotrophic communities reveals novel niche zonation on the continental shelf of the East China Sea
Guangming Mai, Han Zhang, Meng Chen, and Tuo Shi
Biogeosciences, 23, 509–530, https://doi.org/10.5194/bg-23-509-2026,https://doi.org/10.5194/bg-23-509-2026, 2026
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20 Jan 2026
The contributions of various calcifying plankton to the South Atlantic calcium carbonate stock
Anne L. Kruijt, Robin van Dijk, Olivier Sulpis, Luc Beaufort, Guillaume Lassus, Geert-Jan Brummer, A. Daniëlle van der Burg, Ben A. Cala, Yasmina Ourradi, Katja T. C. A. Peijnenburg, Matthew P. Humphreys, Sonia Chaabane, Appy Sluijs, and Jack J. Middelburg
Biogeosciences, 23, 531–563, https://doi.org/10.5194/bg-23-531-2026,https://doi.org/10.5194/bg-23-531-2026, 2026
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20 Jan 2026
Resolving distribution and controls of terrigenous and marine particulate organic matter across an energetic shelf
Yu-Shih Lin, Shu-Ying Chuang, Yuan-Pin Chang, Chieh-Wei Hsu, Hui-Ling Lin, James T. Liu, and Wei-Jen Huang
EGUsphere, https://doi.org/10.5194/egusphere-2025-6501,https://doi.org/10.5194/egusphere-2025-6501, 2026
Preprint under review for BG (discussion: open, 0 comments)
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20 Jan 2026
Contribution of fine roots on carbon allocation patterns in Norwegian forests
Andreas Hagenbo, Ryan M. Bright, Christian Wilhelm Mohr, Marius Hauglin, Simon Weldon, and Lise Dalsgaard
EGUsphere, https://doi.org/10.5194/egusphere-2025-6380,https://doi.org/10.5194/egusphere-2025-6380, 2026
Preprint under review for BG (discussion: open, 0 comments)
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20 Jan 2026
What matters when? Temporal development of drivers and sources of nitrous oxide emissions in winter wheat
Fabio Turco, Iris Feigenwinter, Lorenz Allemann, Lukas Hörtnagl, Frank Liebisch, and Nina Buchmann
EGUsphere, https://doi.org/10.5194/egusphere-2026-27,https://doi.org/10.5194/egusphere-2026-27, 2026
Preprint under review for BG (discussion: open, 0 comments)
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19 Jan 2026
Spatiotemporal variability and environmental controls on aquatic methane emissions in an Arctic permafrost catchment
Michael W. Thayne, Karl Kemper, Christian Wille, Aram Kalhori, and Torsten Sachs
Biogeosciences, 23, 477–495, https://doi.org/10.5194/bg-23-477-2026,https://doi.org/10.5194/bg-23-477-2026, 2026
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19 Jan 2026
Diatom–environment relationships and limnological variability: an updated quantitative tool for palaeoclimatology on sub-Antarctic Macquarie Island
Caitlin A. Selfe, Karina Meredith, Liza McDonough, Justine Shaw, Stephen J. Roberts, and Krystyna M. Saunders
EGUsphere, https://doi.org/10.5194/egusphere-2025-6242,https://doi.org/10.5194/egusphere-2025-6242, 2026
Preprint under review for BG (discussion: open, 1 comment)
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19 Jan 2026
Solving calibration and reanalysis challenges of ocean biogeochemical dynamics with neural schemes: a 1D vertical model case-study
Jean Littaye, Laurent Memery, and Ronan Fablet
EGUsphere, https://doi.org/10.5194/egusphere-2025-6078,https://doi.org/10.5194/egusphere-2025-6078, 2026
Preprint under review for BG (discussion: open, 0 comments)
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19 Jan 2026
Influence of Ni-related enzymes on the Ni cycle in the Southern Ocean: insights from isotopes and metagenomics
Nolwenn Lemaitre, Emile Faure, Ricardo Zamora, Corey Archer, Matthias Sieber, Michael Ellwood, Christel Hassler, Yajuan Lin, Nicolas Cassar, Lois Maignien, and Derek Vance
EGUsphere, https://doi.org/10.5194/egusphere-2025-6336,https://doi.org/10.5194/egusphere-2025-6336, 2026
Preprint under review for BG (discussion: open, 1 comment)
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19 Jan 2026
Linking surface coverage with surfactant activity to refine the role of surfactants for air-sea gas exchange
Falko Asmussen-Schäfer, Mariana Ribas-Ribas, Oliver Wurl, and Gernot Friedrichs
EGUsphere, https://doi.org/10.5194/egusphere-2025-5276,https://doi.org/10.5194/egusphere-2025-5276, 2026
Preprint under review for BG (discussion: open, 1 comment)
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16 Jan 2026
Long-term impacts of mixotrophy on ocean carbon storage: insights from a 10 000 year global model simulation
Marco Puglia, Thomas S. Bibby, Jamie D. Wilson, and Ben A. Ward
Biogeosciences, 23, 463–476, https://doi.org/10.5194/bg-23-463-2026,https://doi.org/10.5194/bg-23-463-2026, 2026
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16 Jan 2026
Temperature and light regulated patterns of physiology, morphology and elemental stoichiometry in geographically distinct isolates of a cosmopolitan diatom
Alyson M. Theseira, Daniel A. Nielsen, Penelope Ajani, and Katherina Petrou
EGUsphere, https://doi.org/10.5194/egusphere-2026-45,https://doi.org/10.5194/egusphere-2026-45, 2026
Preprint under review for BG (discussion: open, 3 comments)
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16 Jan 2026
Colored and Fluorescent DOM in the Sea-Surface Microlayer: Response to a Phytoplankton Bloom and Photodegradation in a Mesocosm Study
Claudia Thölen, Jochen Wollschläger, Michael G. Novak, Rüdiger Röttgers, and Oliver Zielinski
EGUsphere, https://doi.org/10.5194/egusphere-2025-5350,https://doi.org/10.5194/egusphere-2025-5350, 2026
Preprint under review for BG (discussion: open, 0 comments)
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16 Jan 2026
Impacts of water advection and CO2 exchanges on the carbon dioxide removal potential of ocean alkalinity enhancement
Charly A. Moras, Matias Saez Moreno, Peggy Bartsch, and Jens Hartmann
EGUsphere, https://doi.org/10.5194/egusphere-2025-6144,https://doi.org/10.5194/egusphere-2025-6144, 2026
Preprint under review for BG (discussion: open, 0 comments)
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15 Jan 2026
Combined water table and temperature dynamics control CO2 emission estimates from drained peatlands under rewetting and climate change scenarios
Tanja Denager, Jesper Riis Christiansen, Raphael Johannes Maria Schneider, Peter Langen, Thea Quistgaard, and Simon Stisen
Biogeosciences, 23, 441–462, https://doi.org/10.5194/bg-23-441-2026,https://doi.org/10.5194/bg-23-441-2026, 2026
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15 Jan 2026
Spatial heterogeneity of sedimentary organic carbon in fjords around Stavanger, Norway – implications for upscaling
Markus Diesing, Reidulv Bøe, Sigrid Elvenes, Jochen Knies, and Craig Smeaton
EGUsphere, https://doi.org/10.5194/egusphere-2026-108,https://doi.org/10.5194/egusphere-2026-108, 2026
Preprint under review for BG (discussion: open, 0 comments)
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15 Jan 2026
Technical note: Resolving Vertical CO₂ Concentration Gradients at the Air-Water Interface Using a Novel Membrane Equilibration Technique
Patrick Aurich, Vivien Bernhard, Uwe Spank, and Matthias Koschorreck
EGUsphere, https://doi.org/10.5194/egusphere-2026-124,https://doi.org/10.5194/egusphere-2026-124, 2026
Preprint under review for BG (discussion: open, 1 comment)
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15 Jan 2026
Multi-centennial ocean biogeochemical responses to extended Shared Socioeconomic Pathways
Hidetaka Kobayashi, Tokuta Yokohata, Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe, Akira Oka, and Keith B. Rodgers
EGUsphere, https://doi.org/10.5194/egusphere-2026-120,https://doi.org/10.5194/egusphere-2026-120, 2026
Preprint under review for BG (discussion: open, 0 comments)
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14 Jan 2026
Hydrography of intertidal environments in Schleswig-Holstein, Germany
Joachim Schönfeld, Hermann W. Bange, Helmke Hepach, and Svenja Reents
Biogeosciences, 23, 421–440, https://doi.org/10.5194/bg-23-421-2026,https://doi.org/10.5194/bg-23-421-2026, 2026
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14 Jan 2026
Fucoidan carbon is stored in coastal vegetated ecosystems
Inga Hellige, Aman Akeerath Mundanatt, Jana C. Massing, and Jan-Hendrik Hehemann
Biogeosciences, 23, 387–398, https://doi.org/10.5194/bg-23-387-2026,https://doi.org/10.5194/bg-23-387-2026, 2026
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14 Jan 2026
| Highlight paper
The carbon dioxide removal potential of cement and lime kiln dust via ocean alkalinity enhancement
Gunter Flipkens, Greet Lembregts, and Filip J.R. Meysman
Biogeosciences, 23, 399–420, https://doi.org/10.5194/bg-23-399-2026,https://doi.org/10.5194/bg-23-399-2026, 2026
Short summary Co-editor-in-chief
13 Jan 2026
The North Balearic Front as an ecological boundary: zooplankton fine-scale distribution patterns in late spring
Maxime Duranson, Léo Berline, Loïc Guilloux, Alice Della Penna, Mark D. Ohman, Sven Gastauer, Cédric Cotte, Daniela Bănaru, Théo Garcia, Maristella Berta, Andrea Doglioli, Gérald Gregori, Francesco D'Ovidio, and François Carlotti
Biogeosciences, 23, 363–385, https://doi.org/10.5194/bg-23-363-2026,https://doi.org/10.5194/bg-23-363-2026, 2026
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13 Jan 2026
Dynamic upper-ocean processes enhance mesopelagic carbon export of zooplankton fecal pellets in the southern South China Sea
Ruitong Wu, Zhifei Liu, Jiaying Li, Baozhi Lin, Yulong Zhao, Junyuan Cao, and Xiaodong Zhang
Biogeosciences, 23, 345–361, https://doi.org/10.5194/bg-23-345-2026,https://doi.org/10.5194/bg-23-345-2026, 2026
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13 Jan 2026
Complexity in Biogeochemical Models: Consequences for the Biological Carbon Pump
Jonathan Rogerson, Alessandro Tagliabue, Agathe Nguyen, Marcello Vichi, Lewis Wrightson, Prima Anugerahanti, Olivier Aumont, and Marion Gehlen
EGUsphere, https://doi.org/10.5194/egusphere-2025-6505,https://doi.org/10.5194/egusphere-2025-6505, 2026
Preprint under review for BG (discussion: open, 2 comments)
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13 Jan 2026
Buoyancy and polarity driven accumulation of dissolved organic matter in the sea surface microlayer during a phytoplankton bloom
Jasper Zöbelein, Shubham Sawle, Gernot Friedrichs, Mariana Ribas-Ribas, Carola Lehners, Katharina Paetz, Maximilian Pflaum, and Hannelore Waska
EGUsphere, https://doi.org/10.5194/egusphere-2025-6563,https://doi.org/10.5194/egusphere-2025-6563, 2026
Preprint under review for BG (discussion: open, 1 comment)
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12 Jan 2026
Hybrid machine learning data assimilation for marine biogeochemistry
Ieuan Higgs, Ross Bannister, Jozef Skákala, Alberto Carrassi, and Stefano Ciavatta
Biogeosciences, 23, 315–344, https://doi.org/10.5194/bg-23-315-2026,https://doi.org/10.5194/bg-23-315-2026, 2026
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12 Jan 2026
Asymmetry in carbon cycle feedbacks and transient climate response under positive and negative CO2 emissions
V. Rachel Chimuka and Kirsten Zickfeld
EGUsphere, https://doi.org/10.5194/egusphere-2025-6405,https://doi.org/10.5194/egusphere-2025-6405, 2026
Preprint under review for BG (discussion: open, 1 comment)
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09 Jan 2026
Study on the biological communities and bioweathering of the marble surfaces of the Hall of Prayer for Good Harvests at the Temple of Heaven (Beijing, China)
Youping Tian
Biogeosciences, 23, 205–232, https://doi.org/10.5194/bg-23-205-2026,https://doi.org/10.5194/bg-23-205-2026, 2026
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09 Jan 2026
Drivers of CO2 emissions during the dry phase in Mediterranean and Temperate ponds
Victoria Frutos-Aragón, Sandra Brucet, Rafael Marcé, Tuba Bucak, Thomas A. Davidson, Louisa-Marie von Plüskow, Pieter Lemmens, and Carolina Trochine
Biogeosciences, 23, 181–204, https://doi.org/10.5194/bg-23-181-2026,https://doi.org/10.5194/bg-23-181-2026, 2026
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09 Jan 2026
High-resolution remote sensing and machine-learning-based upscaling of methane fluxes: a case study in the Western Canadian tundra
Kseniia Ivanova, Anna-Maria Virkkala, Victor Brovkin, Tobias Stacke, Barbara Widhalm, Annett Bartsch, Carolina Voigt, Oliver Sonnentag, and Mathias Göckede
Biogeosciences, 23, 233–262, https://doi.org/10.5194/bg-23-233-2026,https://doi.org/10.5194/bg-23-233-2026, 2026
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09 Jan 2026
A comprehensive porewater isotope model for simulating benthic nitrogen cycling: description, application to lake sediments, and uncertainty analysis
Alessandra Mazzoli, Peter Reichert, Claudia Frey, Cameron M. Callbeck, Tim J. Paulus, Jakob Zopfi, and Moritz F. Lehmann
Biogeosciences, 23, 283–314, https://doi.org/10.5194/bg-23-283-2026,https://doi.org/10.5194/bg-23-283-2026, 2026
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09 Jan 2026
Land surface model underperformance tied to specific meteorological conditions
Jon Cranko Page, Martin G. De Kauwe, Andy J. Pitman, Isaac R. Towers, Gabriele Arduini, Martin J. Best, Craig R. Ferguson, Jürgen Knauer, Hyungjun Kim, David M. Lawrence, Tomoko Nitta, Keith W. Oleson, Catherine Ottlé, Anna Ukkola, Nicholas Vuichard, Xiaoni Wang-Faivre, and Gab Abramowitz
Biogeosciences, 23, 263–282, https://doi.org/10.5194/bg-23-263-2026,https://doi.org/10.5194/bg-23-263-2026, 2026
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08 Jan 2026
Carbon fixation of a temperate plankton community in response to calcium- and silicate-based Ocean Alkalinity Enhancement using air-sea gas exchange measurements
Julieta Schneider, Ulf Riebesell, Charly André Moras, Laura Marín-Samper, Leila Richards Kittu, Joaquín Ortíz-Cortes, and Kai Georg Schulz
Biogeosciences, 23, 137–153, https://doi.org/10.5194/bg-23-137-2026,https://doi.org/10.5194/bg-23-137-2026, 2026
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08 Jan 2026
Subsoils, but not toeslopes, store millennia-old PyC in a gently sloping catchment under temperate climate after centuries of cultivation
Johanne Lebrun Thauront, Philippa Ascough, Sebastian Doetterl, Negar Haghipour, Pierre Barré, Christian Walter, and Samuel Abiven
Biogeosciences, 23, 155–179, https://doi.org/10.5194/bg-23-155-2026,https://doi.org/10.5194/bg-23-155-2026, 2026
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08 Jan 2026
Mesopelagic fish responses to Pleistocene climatic variability in the Eastern Mediterranean and implications for the biological pump
Konstantina Agiadi, Iuliana Vasiliev, Antoine Vite, Stergios Zarkogiannis, Alba Fuster-Alonso, Jorge Mestre-Tomás, Efterpi Koskeridou, and Frédéric Quillévéré
External preprint server, https://doi.org/10.1101/2024.12.28.630586,https://doi.org/10.1101/2024.12.28.630586, 2026
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