Article
Geosciences, Multidisciplinary
Anna Sinyutkina
Summary: This study investigated the drainage impact on vegetation and peat deposit in Western Siberia bogs, finding that large raised bogs are relatively stable and capable of self-restoration, while small bogs are more susceptible to drainage effects.
Article
Environmental Sciences
Sannimari A. Kaarmelahti, Christian Fritz, Gabrielle R. Quadra, Maider Erize Gardoki, Greta Gaudig, Matthias Krebs, Ralph J. M. Temmink
Summary: Research has shown that different depths of topsoil removal during rewetting of drained peatlands have varying effects on Sphagnum growth, nutrient availability, and vegetation development. TSR5 may be the most suitable method for paludiculture, but its applicability for restoration purposes needs further investigation.
Article
Geochemistry & Geophysics
Kristy Klein, Judith Schellekens, Miriam Gross-Schmolders, Pascal von Sengbusch, Christine Alewell, Jens Leifeld
Summary: This study investigated the impact of drainage on the chemical composition of peat organic matter (OM). The results showed that drainage significantly influenced the peat chemistry through increased aerobic decomposition and vegetation shifts, while anaerobic processes also had an impact on the chemical composition.
ORGANIC GEOCHEMISTRY
(2022)
Article
Chemistry, Analytical
Eleanor Y. Reed, Christopher H. Vane, Geoffrey D. Abbott
Summary: This study analyzed six soil profiles on a marginal peatland in Wark Forest, northeast England, using C-13-TMAH THM technique. It identified aromatic compounds from different plant species and observed vegetation changes related to adjacent plantation. The study demonstrated the use of C-13-TMAH THM as a screening method to characterize aromatic biomacromolecules in peat and provide information on the resilience of current peat deposits to climate change and changing conditions.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Environmental Sciences
Elisa Mannisto, Henni Ylanne, Mari Losoi, Markku Keinanen, Pasi Yli-Pirila, Aino Korrensalo, Jaana Back, Heidi Hellen, Annele Virtanen, Eeva-Stiina Tuittila
Summary: The quantity and quality of BVOC emissions from peatland ecosystems in southern Finland are influenced by vegetation and peatland type, with isoprene being the dominant compound. Climate change, including increased shrub cover and more frequent extreme weather events, may have a negative impact on total BVOC emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yifeng Zhang, Rick Pelletier, Tommy Noernberg, Mark W. Donner, Iain Grant-Weaver, Jonathan W. Martin, William Shotyk
Summary: The major wildfires in 2016 in Fort McMurray and the Athabasca oil sands region (AOSR) had less impact on regional deposition of pollutants compared to ongoing anthropogenic dust deposition from oil sands activities. Through mass balance receptor models, it was found that the main sources of trace elements were oil sands ore, haul road dust, and petcoke, while wildfire was a minor source in the region. Despite elevated concentrations of certain pollutants post-wildfire, the study revealed that the dominant sources of PAHs and trace elements were not wildfires, but rather industrial activities like oil sands extraction.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Hugo Campos-Pereira, Jennifer Makselon, Dan B. Kleja, Isabel Prater, Ingrid Kogel-Knabner, Lutz Ahrens, Jon Petter Gustafsson
Summary: This study investigated the sorption behavior of PFASs in different organic soil samples, and found that the two peat materials had stronger sorption capacity compared to the Mor Oe material. Additionally, sorption was positively related to the content of carbohydrates and inversely related to the pH value, with nonlinearity observed in the sorption isotherms.
Article
Multidisciplinary Sciences
Alexander Pastukhov, Sergey Loiko, Dmitry Kaverin
Summary: The study determined the concentrations of 15 individual PAHs in 93 peat cores using high-performance liquid chromatography methods and found that heavy highly condensed PAHs like 6-nuclear benzo[ghi]perylene were predominant in Eastern European peat plateaus, while light PAHs like naphthalene and phenanthrene were dominant in West Siberian permafrost peatlands.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Nicholas O. E. Ofiti, Manuela Altermatt, Fanny Petibon, Jeffrey M. Warren, Avni Malhotra, Paul J. Hanson, Guido L. B. Wiesenberg
Summary: Plant carbon allocation is an important process in terrestrial ecosystems. Climate change can affect the carbon allocation strategies of dominant plant species in peatland ecosystems, but little is known about the allocation into secondary metabolites and species variations in response to climate change.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Environmental Sciences
Pawel Pech, Bronislaw Wojtun, Aleksandra Samecka-Cymerman, Ludmila Polechonska, Alexander J. Kempers
Summary: The Sudetes mountain range is known for its diverse peat bogs, which rely on atmospheric precipitation as their only source of minerals. Due to the low buffering capacity of these peat bogs, they are highly responsive to atmospheric contamination, making them suitable for bioindication purposes. This study assessed the concentration of various metals in different plant functional types from peat bogs in the Sudetes, and found that the algae and Sphagnum mosses were the most effective indicators of trace metal pollution. Airborne contaminants, including those from long-range transport, were found to significantly contribute to trace metal levels in peat bogs located above the upper forest line. These findings highlight the importance of considering airborne depositions in monitoring and environmental protection programs.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2022)
Article
Ecology
Colleen M. Iversen, John Latimer, Deanne J. Brice, Joanne Childs, Holly M. Vander Stel, Camille E. Defrenne, Jake Graham, Natalie A. Griffiths, Avni Malhotra, Richard J. Norby, Keith C. Oleheiser, Jana R. Phillips, Verity G. Salmon, Stephen D. Sebestyen, Xiaojuan Yang, Paul J. Hanson
Summary: Warming is found to exponentially increase plant-available ammonium and phosphate in a peatland ecosystem, with no effect from elevated CO2 levels. The dynamics of nutrient availability are influenced by peat depth and microtopography. Future predictions of peatland nutrient availability should take into account dynamic changes in nutrient acquisition by plants and microbes, as well as peat depth and microtopography.
Article
Geochemistry & Geophysics
Khaled Younes, Laurent Grasset
Summary: This study investigates the potential application of neutral monosaccharides derived from a newly developed method for assessing the dynamics of organic matter in peatlands. The results provide a better understanding of carbohydrate geochemistry in ombrotrophic peatlands through the combination of statistical analysis and molecular fingerprinting.
Article
Multidisciplinary Sciences
Maria Luisa Astolfi, Lorenzo Massimi, Mattia Rapa, Rita Rosa Pla, Raquel Clara Jasan, Mabel Beatriz Tudino, Silvia Canepari, Marcelo Enrique Conti
Summary: This study examines the distribution and accumulation of elements in peat deposits and Sphagnum moss in the Tierra del Fuego region of southern South America. The results show significant differences in element content between moss and peat samples, with some elements being more abundant in moss and others in peat. The findings highlight the role of moss as a facilitator for element entry into peat samples.
SCIENTIFIC REPORTS
(2023)
Article
Agronomy
Vanessa Natalie Orta-Guzman, Jorge Aurelio Lois-Correa, Miguel Antonio Dominguez-Crespo, Joel Pineda-Pineda, Aide Minerva Torres-Huerta, Adela Eugenia Rodriguez-Salazar, Angeles Iveth Licona-Aguilar
Summary: This study investigated the feasibility of using agricultural waste as a substitute for peat moss in growing tomatoes. Different ratios of sugarcane bagasse, filter press mud, and sugarcane bagasse ash were tested based on their physical-chemical properties for soilless cultivation of tomatoes. The results showed that in appropriate proportions, these agroindustrial wastes can effectively replace commercial peat moss as a substrate.
Article
Soil Science
E. Yakovleva, D. N. Gabov, R. S. Vasilevich
Summary: This article discusses the accumulation of polycyclic aromatic hydrocarbons (PAHs) in plants and peat. The content of PAHs is estimated using high performance liquid chromatography. The study found that different plant species in the ecotones have similar PAH accumulation, allowing for extrapolation to other bogs. The composition of dominant plants influences the PAH composition in peat.
EURASIAN SOIL SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Oscar E. Romero, Leah J. LeVay, Erin L. McClymont, Juliane Muller, Ellen A. Cowan
Summary: This study investigates the impact of orbital- and suborbital-scale climate variability on productivity and sea-surface conditions in the Gulf of Alaska. The analysis of a sediment record covering the past 54,000 years reveals the influence of meltwater discharge from the Cordilleran Ice Sheet on nutrient supply and productivity. The findings suggest that iron fertilization played a significant role in enhancing biogenic concentrations during specific periods, and reduced iron availability after the last deglaciation led to low productivity.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2022)
Article
Geography, Physical
Julia C. Webb, Julia McCarroll, Frank M. Chambers, Tim Thom
Summary: The Little Ice Age (LIA) is a well-known palaeoclimatic event, and it is considered one of the most significant global climate downturns in the Holocene. This study presents palaeoclimate data from three blanket peats in Yorkshire, showing that the LIA is evident in each site and has broad synchronicity with terrestrial datasets from other regions.
Article
Geography, Physical
Harm Smeenge, Annemieke Kooijman, Otto Brinkkemper, Hans de Mars, Dmitri Mauquoy, Bas van Geel
Summary: Alkaline fens are important habitats for endangered plant species. Analysis indicates that human activities were the main cause for the accumulation of organic material and peat growth.
Article
Geography, Physical
Honghao Niu, Mengzhen Li, Laurent Marquer, Teija Alenius, Frank M. Chambers, Dorothy Sack, Guizai Gao, Jiangyong Wang, Meng Meng, Linlin Liu, Lina Song, Anyi Xu, Dongmei Jie
Summary: Studying the interactions between paleoecology and climate variations in semi-arid areas, such as the Songnen grasslands in northeastern China, provides insights into how future vegetation changes and hydrological variations may impact semi-arid ecosystems. This study presents a high resolution palaeoecological dataset covering the past 7300 years and reveals the dynamics of vegetation and water levels in the Dabusu peatlands. By comparing these features with regional climate change, the study suggests that East Asian Summer Monsoon circulations might be the main driving force controlling the regional paleovegetation dynamics and hydrological variations.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Thomas Theurer, Noemi Naszarkowski, David K. Muirhead, David Jolley, Dmitri Mauquoy
Summary: Charcoal geothermometry has great potential in studying ancient wildfires and understanding modern wildfire intensification. Recent developments in Raman spectroscopy have shown the capability to reconstruct palaeocharcoal formation temperature and wildfire pyrolysis intensity. Accurate quantification of modern wildfire temperatures using Raman-charcoal analysis has not been attempted. The analysis of natural wildfire charcoals using Raman band width-ratios and geothermometric trends has identified differences in microstructurally-derived fire temperatures compared to those recorded during the fire event. However, the complexity of natural fire systems makes it difficult to determine the dominant influence on these differences.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Maria Luisa Sanchez Montes, Oscar E. Romero, Ellen A. Cowan, Juliane Mueller, Christopher M. Moy, Jeremy M. Lloyd, Erin L. McClymont
Summary: This study analyzed sediment samples obtained from drilling, revealing two water column transitions in the Gulf of Alaska during the Pliocene and Pleistocene. These transitions are important for nutrient cycling and CO2 exchange. Additionally, the study found that the expansion of the Cordilleran Ice Sheet had significant impacts on the ecosystem of the Gulf of Alaska.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Qiannan Yang, Hongkai Li, Hongyan Zhao, Frank M. Chambers, Zhaojun Bu, Edith Bai, Guangyuan Xu
Summary: Quantitative relationships between mire plant assemblages and environmental variables were investigated in the Changbai Mountains region of Northeast China. The study found that depth to water table was the principal environmental factor determining plant assemblages. A transfer function based on plant assemblages was developed and shown to have strong predictive power for inferring water table depth. The findings suggest that this approach has potential for quantitative reconstruction of past mire surface wetness.
Article
Multidisciplinary Sciences
Babette A. A. Hoogakker, Caroline Anderson, Tommaso Paoloni, Andrew Stott, Helen Grant, Patrick Keenan, Claire Mahaffey, Sabena Blackbird, Erin L. McClymont, Ros Rickaby, Alex Poulton, Victoria L. Peck
Summary: The study investigates the relationship between the carbon isotopes of planktonic foraminifera-bound organic carbon (δ13C(org-pforam)) and particulate organic matter (POM) (δ13C(org-POM)). The results show that δ13C(org-pforam) values are remarkably similar to δ13C(org-POM) values, indicating that δ13C(org-pforam) can be used as a proxy for reconstructing past environmental conditions in the upper ocean and understanding the evolution of the carbon cycle over geological time-scales.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Emily J. J. Judd, Jessica E. E. Tierney, Brian T. T. Huber, Scott L. L. Wing, Daniel J. J. Lunt, Heather L. L. Ford, Gordon N. N. Inglis, Erin L. L. McClymont, Charlotte L. L. O'Brien, Ronnakrit Rattanasriampaipong, Weimin Si, Matthew L. L. Staitis, Kaustubh Thirumalai, Eleni Anagnostou, Margot J. J. Cramwinckel, Robin R. R. Dawson, David Evans, William R. R. Gray, Ethan L. L. Grossman, Michael J. J. Henehan, Brittany N. N. Hupp, Kenneth G. G. MacLeod, Lauren K. K. O'Connor, Maria Luisa Sanchez Montes, Haijun Song, Yi Ge Zhang
Summary: PhanSST is a database containing over 150,000 paleotemperature proxy data points that can be used to estimate past sea surface temperature. The data have a global distribution, cover a wide temporal range, and include detailed metadata to promote transparency and reproducibility.
Article
Geography, Physical
Nannan Li, Fengling Yu, Frank M. Chambers, Zhaoquan Huang, Wenmin Lin, Zilong Zhu, Huanjie Yang, Jiaqi Lin
Summary: This study focuses on the Lianhuachi wetland in Southeastern China and proposes a chronology refinement method based on the humification degree of peat. The results show that this method improves the comparability and reduces uncertainties in wetland paleoclimate reconstructions.
Article
Geography, Physical
Thomas G. Sim, Graeme T. Swindles, Paul J. Morris, Andy J. Baird, Angela V. Gallego-Sala, Yuwan Wang, Maarten Blaauw, Philip Camill, Michelle Garneau, Mark Hardiman, Julie Loisel, Minna Valiranta, Lysanna Anderson, Karina Apolinarska, Femke Augustijns, Liene Aunina, Joannie Beaulne, Premysl Bobek, Werner Borken, Nils Broothaerts, Qiao-Yu Cui, Marissa A. Davies, Ana Ejarque, Michelle Farrell, Ingo Feeser, Angelica Feurdean, Richard E. Fewster, Sarah A. Finkelstein, Marie-Jose Gaillard, Mariusz Gaika, Liam Heffernan, Renske Hoevers, Miriam Jones, Teemu Juselius-Rajamaki, Edgar Karofeld, Klaus-Holger Knorr, Atte Korhola, Dmitri Kupriyanov, Malin E. Kylander, Terri Lacourse, Mariusz Lamentowicz, Martin Lavoie, Geoffrey Lemdahl, Dominika Lucow, Gabriel Magnan, Alekss Maksims, Claudia A. Mansilla, Katarzyna Marcisz, Elena Marinova, Paul J. H. Mathijssen, Dmitri Mauquoy, Yuri A. Mazei, Natalia Mazei, Julia McCarroll, Robert D. McCulloch, Alice M. Milner, Yannick Miras, Fraser J. G. Mitchell, Elena Novenko, Nicolas Pelletier, Matthew C. Peros, Sanna R. Piilo, Louis-Martin Pilote, Guillaume Primeau, Damien Rius, Vincent Robin, Mylene Robitaille, Thomas P. Roland, Eleonor Ryberg, A. Britta K. Sannel, Karsten Schittek, Gabriel Servera-Vives, William Shotyk, Michal Slowinski, Normunds Stivrins, Ward Swinnen, Gareth Thompson, Alexei Tiunov, Andrey N. Tsyganov, Eeva-Stiina Tuittila, Gert Verstraeten, Tuomo Wallenius, Julia Webb, Debra Willard, Zicheng Yu, Claudio Zaccone, Hui Zhang
Summary: Northern peatlands store globally-important amounts of carbon, but drying and land-use change may increase fire frequency and carbon loss. Our study reveals regional variation in peatland burning during the Holocene, with long-term trends driven mostly by climate and human activities. Peatland burning has declined in some areas since the Little Ice Age, possibly due to fire-suppression policies and landscape fragmentation. However, widespread drying and degradation of peatlands have increased their vulnerability to burning in recent centuries.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Environmental Sciences
Katarzyna Marcisz, Zdzislaw Belka, Jolanta Dopieralska, Michal Jakubowicz, Monika Karpinska-Kolaczek, Piotr Kolaczek, Dmitri Mauquoy, Michal Slowinski, Mateusz Zielinski, Mariusz Lamentowicz
Summary: In the past decade, neodymium isotopes have been increasingly used as a tracer of dust influx associated with changes in the Holocene atmospheric circulation. However, the understanding of the sources of sediment supplied to peatlands remains incomplete. This study used neodymium isotopes to reconstruct environmental disturbances in peatlands and found a link between these disturbances and the neodymium isotope signals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Claire B. Rubbelke, Tripti Bhattacharya, Ran Feng, Natalie J. Burls, Scott Knapp, Erin L. Mcclymont
Summary: Future projections of southwestern African hydroclimate are highly uncertain. Insights from past warm climates, like the Pliocene, can reveal mechanisms of future change and help benchmark models. This study reconstructs precipitation in Namibia over the past 5 million years and finds a long-term depletion trend linked to sea surface temperatures. The influence of SSTs on regional hydroclimate is similar to that observed during modern extreme flooding events. Capturing this mechanism is key to accurately simulating past and future regional hydroclimate. The findings have implications for the future climate of the region and the associated risks to ecosystems and industries.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geography, Physical
James A. Smith, Louise Callard, Michael J. Bentley, Stewart S. R. Jamieson, Maria Luisa Sanchez-Montes, Timothy P. Lane, Jeremy M. Lloyd, Erin L. McClymont, Christopher M. Darvill, Brice R. Rea, Colm O'Cofaigh, Pauline Gulliver, Werner Ehrmann, Richard S. Jones, David H. Roberts
Summary: This study reconstructs the Holocene dynamics of the Nioghalvfjerdsbrae ice shelf, the largest marine-terminating glacier in Northeast Greenland. The results indicate that the ice shelf retreated between 8.5 and 4.4 thousand years ago following a period of enhanced atmospheric and ocean warming. The ice shelf reformed after 4.4 thousand years ago, coinciding with decreasing atmospheric temperatures and the increased dominance of Polar Water.
Article
Geosciences, Multidisciplinary
Erin L. McClymont, Michael J. Bentley, Dominic A. Hodgson, Charlotte L. Spencer-Jones, Thomas Wardley, Martin D. West, Ian W. Croudace, Sonja Berg, Darren R. Grocke, Gerhard Kuhn, Stewart S. R. Jamieson, Louise Sime, Richard A. Phillips
Summary: Antarctic sea ice plays a crucial role in the climate system, but uncertainties in reconstructing its past extent hinder our understanding. Using stomach oils of snow petrels as a novel archive, this study reconstructed the sea-ice environment and diet changes during the last glacial stage. The findings indicate that extensive sea ice was not always present near the continent, highlighting the potential of stomach-oil deposits as a paleoenvironmental archive.
CLIMATE OF THE PAST
(2022)