Article
Environmental Studies
Melissa House, Dale H. Vitt, Lilyan C. Glaeser, Jeremy A. Hartsock
Summary: Monitoring of Sandhill Wetland plant communities and environmental features shows that plant communities dominated by the same species have persisted for nine years after reclamation, although species richness has decreased. Plant communities have shifted in response to changes in water table and sodium concentrations. The stoichiometry of base cations and the water chemistry of the wetland are unique. These findings provide important background data for future in-pit reclamation designs.
Article
Environmental Sciences
Craig Mahoney, Joshua Montgomery, Stephanie Connor, Danielle Cobbaert
Summary: This study presents the results of Canada's pilot Oil Sands Monitoring (OSM) Wetland Program, which aims to identify suitable wetland indicators for detecting changes in wetland ecosystem states caused by oil sands development. The study found that water quality, benthic invertebrates, and vegetation indicators can identify changes in wetland states over time, while wildlife indicators are inconclusive. The study also recommends acquiring hydrometeorology data alongside other indicator data to contextualize climate conditions.
Article
Engineering, Environmental
Xiaotong Shen, Jian Zhang, Huijun Xie, Bo Sun, Shuang Liang, Haiming Wu, Zhen Hu, Huu Hao Ngo, Wenshan Guo, Jiaxing Lu
Summary: In this study, Ru and ABTS were introduced to enhance the oxidation ability of Mn oxides, thereby improving Mn cycle efficiency and accelerating the removal of persistent organic pollutants. The results showed that ABTS performed the best in enhancing the Mn cycle, while Ru/BC contributed to the best adsorption ability and highest relative abundance of PHE degrading bacteria.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Gustavo Stolzenberg Colares, Naira Dell'Osbel, Gabriele Paranhos, Patricia Cerentini, Gislayne A. Oliveira, Elizandro Silveira, Lucia R. Rodrigues, Jocelene Soares, Carlos A. Lutterbeck, Adriane Lawisch Rodriguez, Jan Vymazal, Enio L. Machado
Summary: The study developed a pilot-scale integrated system for decentralized urban wastewater treatment and bioelectricity generation. It efficiently reduced wastewater parameters and achieved certain results in the field of bioelectricity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
M. A. Davies, J. W. McLaughlin, M. S. Packalen, S. A. Finkelstein
Summary: Wetlands are the largest natural source of methane, yet the roles of source region and paleoclimate in explaining the variability in Holocene atmospheric methane concentrations remain poorly constrained. The study on Hudson Bay Lowlands (HBL) shows that total methane flux is closely related to the increasing area of land emerging from below sea level in the Middle Holocene, and due to lower evapotranspiration in a wetter and cooler climate in the Late Holocene, methane fluxes remained high.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Water Resources
Spencer J. Chad, S. Lee Barbour, Jeffrey J. McDonnell, John J. Gibson
Summary: This study was conducted in the Athabasca Oil Sands Region in Canada, with a focus on establishing inventories of site-wide water isotope signatures and developing a conceptual model for understanding temporal variations in the water balance. The study provides foundational evidence for monitoring and improving industrial water use efficiency and management.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Water Resources
J. J. Gibson, P. Eby, S. J. Birks, C. Twitchell, C. Gray, J. Kariyeva
Summary: This study presents a comprehensive assessment of the water balance of wetlands in Alberta, Canada, including the oil sands region. By incorporating climate reanalysis, watershed data, and isotopic data, the study reveals systematic variations in evaporation losses, runoff, groundwater inflow, and wetland discharge across different subregions. The findings provide valuable insights for water resource management and ecological conservation in the region.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Ecology
Kelly M. Biagi, M. Graham Clark, Sean K. Carey
Summary: The study aims to understand the key hydrological changes post-management of a constructed peatland watershed, with results showing that changes in management practices primarily drove the observed hydrological changes, and current conditions are not favorable for the development of the wetland ecosystem.
ECOLOGICAL ENGINEERING
(2021)
Review
Environmental Sciences
Basanta Kumar Biswal, Rajasekhar Balasubramanian
Summary: Constructed wetland systems utilizing natural substrates, plants, and microbes have shown to be cost-effective and sustainable for water treatment. This review critically analyzes the recent advances in applying these systems for pollutant removal and discusses key factors influencing their performance. Constructed wetland systems exhibit good performance in removing diverse pollutants through physical, chemical, and biological processes. The review also highlights the need for further research in developing multifunctional constructed wetland systems.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Geochemistry & Geophysics
Hao Chen, Jixin Huang, Zhaohui Xia, Zhiquan Nie, Xiaoxing Shi, Jiuning Zhou
Summary: The McMurray Formation in NE Alberta, Canada, contains significant bitumen bearing deposits that were deposited in fluvial, tidal, or estuarine environments, resulting in a large number of tidal couplets. A quantitative characterization procedure for mm-cm scale tidal couplets was proposed in this study, which includes identification, classification, quantitative description, and spatial distribution prediction. The results show that tidal couplets can be divided into four types based on their geological origins and can be described and predicted through various methods such as mathematical morphological processing, well correlations, and object-based modeling.
Article
Engineering, Civil
Sarah Irvine, Scott J. Davidson, Jonathan S. Price, Maria Strack
Summary: The study investigated the DOC fluxes in a constructed fen in 2015 and 2016, finding that vegetation production is the main source of DOC concentration, while precipitation and runoff inputs have minimal impact on the quality of DOC present in the fen, with minimal DOC export from the fen.
JOURNAL OF HYDROLOGY
(2021)
Article
Plant Sciences
Lilyan C. Glaeser, Melissa House, Dale H. Vitt
Summary: The study examined the responses of two wetland plant species, Carex atherodes and Carex aquatilis, to different sodium concentrations. Structural and physiological attributes of the plants varied with sodium levels, with Carex atherodes showing reduced performances at 1407 mg Na+ L-1, while Carex aquatilis had a clear threshold between 1650 and 2148 mg Na+ L-1. High sodium concentrations above 1500-2000 mg Na+ L-1 may inhibit the growth of these species in wetland reclamation.
Article
Environmental Sciences
Philippe J. Thomas, David C. Eickmeyer, Kristin M. Eccles, Linda E. Kimpe, Emiel Felzel, Abraham Brouwer, Robert J. Letcher, Bruce D. Maclean, Laurie H. M. Chan, Jules M. Blais
Summary: Although the oil and gas industry in Northern Alberta has economic benefits, concerns exist over the impact of increased oil production on the environment and human health. This study linked chemical analysis of sediment cores with biological effect assessments, showing the feasibility of evaluating toxicity in river systems.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Andrzej Wnorowski, Yayne-abeba Aklilu, Tom Harner, Jasmin Schuster, Jean-Pierre Charland
Summary: This study characterized the concentrations and spatiotemporal patterns of ambient air polycyclic aromatic compounds in the Athabasca oil sands region between 2011 and 2015. Alkylated polycyclic aromatic hydrocarbons were found to be the majority of PACs in air, with concentrations varying spatially and seasonally. PAC concentrations measured during wildfire events were the highest and enriched in higher molecular weight alk-PAHs.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Monique C. Simair, Joanne L. Parrott, Mignon le Roux, Varun Gupta, Richard A. Frank, Kerry M. Peru, Chukwuemeka Ajaero, Dena W. McMartin, John Headley
Summary: This study presents a comprehensive comparison of CWTS performance operated with both synthetic OSPW and OSPW for four CWTS designs differing in plant type, aeration, flow path, water depth, and substrate type. The study found that CWTS planted with Sedge achieved the greatest extent of NAFC treatment and detoxification regardless of design, while CWTSs planted with Cattail and Bulrush degraded NAFCs and decreased toxicity, but required a greater hydraulic retention time. Although synthetic OSPW was more toxic and experienced faster degradation rates, it showed similar trends to OSPW in terms of CWTS design efficiencies and function.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Plant Sciences
Alice M. Milner, Andy J. Baird, Sophie M. Green, Graeme T. Swindles, Dylan M. Young, Nicole K. Sanderson, Madeleine S. Timmins, Mariusz Galka
Summary: Peatlands are globally important ecosystems that can undergo spontaneous recovery from degradation, transitioning from erosion to renewed carbon accumulation. By using a palaeoecological approach, a study in North Wales revealed rapid carbon accumulation in new peat, different successional pathways in peat-forming vegetation, and hydrological changes promoting carbon accumulation and protecting old carbon. External factors only partially explain the results, with internal ecosystem processes playing a significant role in the switch to renewed carbon accumulation. This study suggests that the tipping point to renewed carbon accumulation in degraded peatlands involves changes in the physical landscape.
JOURNAL OF ECOLOGY
(2021)
Article
Plant Sciences
Graeme T. Swindles, Jennifer M. Galloway, Garry Rushworth, Jane Wheeler, Philip Murphy, Timothy F. Taylor
Summary: The Yorkshire Dales is an iconic agricultural landscape in Britain, with a long history of vegetation and fire. New palynological data reveal significant variation in vegetation history between different sites, likely influenced by topographic and edaphic factors. The data show a marked clearance of woodland starting from the Neolithic period, leading to the development of the contemporary agricultural landscape in the Yorkshire Dales.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2021)
Correction
Environmental Sciences
J. Loisel, A. V. Gallego-Sala, M. J. Amesbury, G. Magnan, G. Anshari, D. W. Beilman, J. C. Benavides, J. Blewett, P. Camill, D. J. Charman, S. Chawchai, A. Hedgpeth, T. Kleinen, A. Korhola, D. Large, C. A. Mansilla, J. Muller, S. van Bellen, J. B. West, Z. Yu, J. L. Bubier, M. Garneau, T. Moore, A. B. K. Sannel, S. Page, M. Valiranta, M. Bechtold, V. Brovkin, L. E. S. Cole, J. P. Chanton, T. R. Christensen, M. A. Davies, F. De Vleeschouwer, S. A. Finkelstein, S. Frolking, M. Galka, L. Gandois, N. Girkin, L. I. Harris, A. Heinemeyer, A. M. Hoyt, M. C. Jones, F. Joos, S. Juutinen, K. Kaiser, T. Lacourse, M. Lamentowicz, T. Larmola, J. Leifeld, A. Lohila, A. M. Milner, K. Minkkinen, P. Moss, B. D. A. Naafs, J. Nichols, J. O'Donnell, R. Payne, M. Philben, S. Piilo, A. Quillet, A. S. Ratnayake, T. P. Roland, S. Sjogersten, O. Sonnentag, G. T. Swindles, W. Swinnen, J. Talbot, C. Treat, A. C. Valach, J. Wu
Summary: The correction to this paper has been published.
NATURE CLIMATE CHANGE
(2021)
Article
Geology
Jennifer M. Galloway, Robert A. Fensome, Graeme T. Swindles, Thomas Hadlari, Jared Fath, Claudia Schroder-Adams, Jens O. Herrle, Adam Pugh
Summary: This study investigates the response of Arctic vegetation to volcanic activity during the Early Cretaceous through new palynological biostratigraphy and paleoenvironmental reconstruction of the HauterivianeAptian Isachsen Formation. It identifies four stages of vegetation change and explores the role of the HALIP in these changes.
CRETACEOUS RESEARCH
(2022)
Article
Biodiversity Conservation
Thomas G. Sim, Graeme T. Swindles, Paul J. Morris, Andy J. Baird, Dan J. Charman, Matthew J. Amesbury, Dave Beilman, Alex Channon, Angela V. Gallego-Sala
Summary: This study utilized new transfer functions to reconstruct water-table depth (WTD) and pH in Svalbard peatlands, enabling a greater understanding of the long-term impact of climate change on these ecosystems.
ECOLOGICAL INDICATORS
(2021)
Article
Geosciences, Multidisciplinary
Julien Arsenault, Julie Talbot, Lee E. Brown, Joseph Holden, Karla Martinez-Cruz, Armando Sepulveda-Jauregui, Graeme T. Swindles, Maxime Wauthy, Jean-Francois Lapierre
Summary: Research has shown that peatland ponds are distinct from lakes in biogeochemical terms, while thermokarst waterbodies share characteristics with peatland ponds, lakes, or both. Peatland ponds tend to have higher dissolved organic carbon concentrations and acidity than lakes, highlighting their unique role in global biogeochemical cycles.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Gill Plunkett, Graeme T. Swindles
Summary: The study challenges the perception of societal vulnerability to environmental change by examining a remote upland site in northern Ireland. The researchers find that past climate change and demographic collapses did not have a lasting impact on human activity in the area, suggesting that generalized models of societal collapse may overemphasize population vulnerability.
Article
Geography, Physical
Cindy Quik, Sanne W. L. Palstra, Roy van Beek, Ype van der Velde, Jasper H. J. Candel, Marjolein van der Linden, Lucy Kubiak-Martens, Graeme T. Swindles, Bart Makaske, Jakob Wallinga
Summary: This study aims to provide updated recommendations for dating peat initiation by analyzing radiocarbon dating sequences. The study found that plant macrofossils provide the most accurate age for dating basal peat, while the humic fraction can be used as an alternative. However, caution should be exercised when interpreting data from existing dating samples. The study also highlights the importance of selecting appropriate sampling sizes and resolutions.
QUATERNARY GEOCHRONOLOGY
(2022)
Article
Environmental Sciences
Richard E. Fewster, Paul J. Morris, Ruza F. Ivanovic, Graeme T. Swindles, Anna M. Peregon, Christopher J. Smith
Summary: The dynamics of permafrost peatland thaw remain uncertain due to complex permafrost-climate interactions, the insulating properties of peat soils, and variation in model projections of future climate. Under moderate and high warming scenarios, permafrost peatlands in Europe and Western Siberia will soon cross a tipping point where the climate becomes unsuitable, putting their carbon stores at risk.
NATURE CLIMATE CHANGE
(2022)
Article
Multidisciplinary Sciences
Hui Zhang, Minna Valiranta, Graeme T. Swindles, Marco A. Aquino-Lopez, Donal Mullan, Ning Tan, Matthew Amesbury, Kirill Babeshko, Kunshan Bao, Anatoly Bobrov, Viktor Chernyshov, Marissa A. Davies, Andrei-Cosmin Diaconu, Angelica Feurdean, Sarah A. Finkelstein, Michelle Garneau, Zhengtang Guo, Miriam C. Jones, Martin Kay, Eric S. Klein, Mariusz Lamentowicz, Gabriel Magnan, Katarzyna Marcisz, Natalia Mazei, Yuri Mazei, Richard Payne, Nicolas Pelletier, Sanna R. Piilo, Steve Pratte, Thomas Roland, Damir Saldaev, William Shotyk, Thomas G. Sim, Thomas J. Sloan, Michal Slowinski, Julie Talbot, Liam Taylor, Andrey N. Tsyganov, Sebastian Wetterich, Wei Xing, Yan Zhao
Summary: A recent synthesis study has found that high-latitude peatlands have exhibited complex and highly uncertain ecohydrological dynamics over the past centuries, with 54% of the peatlands drying and 32% wetting. This highlights the importance of understanding the responses of high-latitude peatlands to a warming climate.
NATURE COMMUNICATIONS
(2022)
Editorial Material
Geography, Physical
Graeme T. T. Swindles, Thomas P. P. Roland, Alastair Ruffell
JOURNAL OF QUATERNARY SCIENCE
(2023)
Article
Geography, Physical
Richard E. Fewster, Paul J. Morris, Graeme T. Swindles, Ruza F. Ivanovic, Claire C. Treat, Miriam C. Jones
Summary: Vegetation shifts in circum-Arctic permafrost peatlands have important consequences for carbon budgets and permafrost thaw. Shrub and tree growth in these peatlands remain unquantified. We investigate vegetation composition using plant macrofossil records and find increasing woody vegetation alongside declining herbaceous vegetation. Shrubification is most pronounced where permafrost coverage is discontinuous. Shrub expansion and decline have occurred across the pan-Arctic since 200 years BP, indicating complex ecological responses to climate warming and permafrost degradation.
QUATERNARY SCIENCE REVIEWS
(2023)
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
Callum R. C. Evans, Donal J. Mullan, Helen M. Roe, Patricia M. Fox, Simon Gray, Graeme T. Swindles
Summary: Peatlands are globally important habitats and carbon stores, but they face significant management challenges due to human impacts and climate change. The restoration measures of drain blocking show complex but meaningful results, with increased species diversity and wetter conditions observed. However, caution is advised when using testate amoebae for bioindication until their assemblage-level response to restoration is better understood. This study highlights the potential of using indicator-taxa based approaches with testate amoebae as bioindicators for peatland restoration immediately after restoration.
WETLANDS ECOLOGY AND MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Helen Mackay, Gill Plunkett, Britta J. L. Jensen, Thomas J. Aubry, Christophe Corona, Woon Mi Kim, Matthew Toohey, Michael Sigl, Markus Stoffel, Kevin J. Anchukaitis, Christoph Raible, Matthew S. M. Bolton, Joseph G. Manning, Timothy P. Newfield, Nicola Di Cosmo, Francis Ludlow, Conor Kostick, Zhen Yang, Lisa Coyle McClung, Matthew Amesbury, Alistair Monteath, Paul D. M. Hughes, Pete G. Langdon, Dan Charman, Robert Booth, Kimberley L. Davies, Antony Blundell, Graeme T. Swindles
Summary: The eruption of Mount Churchill in Alaska in 852/3 CE was one of the largest volcanic events of the first millennium. It had a significant impact on atmospheric cooling, but its broader effects on climate and society are still uncertain. The study suggests that the estimated climate forcing potential of the eruption may have been underestimated, highlighting the need for greater understanding of the role of halogens and volcanic ash in eruption climate forcing potential. Additionally, the comparison of paleoenvironmental records from peatlands reveals that there were no long-term climatic or societal impacts beyond the immediate eruption area.
CLIMATE OF THE PAST
(2022)