Article
Engineering, Civil
C. Juez, E. Nadal-Romero
Summary: This study analyzed a long-term database to characterize the temporal structure response of a catchment in a humid mountain badland area to precipitation. By utilizing frequency analysis and wavelet reconstruction techniques, it was able to reveal the dominant time scales governing the behavior of precipitation, discharge, and sediment yield dynamics. The combination of geomorphological metrics and frequency analysis provided a physical explanation of the complete temporal structure of the catchment response to precipitation, highlighting the importance of multi-temporal response of water and sediment fluxes for proper catchment management.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Beibei He, An Liu, Godfred O. Duodu, Buddhi Wijesiri, Godwin A. Ayoko, Ashantha Goonetilleke
Summary: This study examines the combined effects of catchment characteristics, sediment properties, and emerging pollutants (microplastics) on the presence of metals in urban river sediments. The results show variations in metal concentrations and enrichment along the Brisbane River, with crustal metals correlated with sediment properties and anthropogenic source metals correlated with catchment characteristics. Additionally, the presence of metals in sediments is positively correlated with microplastics concentration and negatively correlated with microplastics hazard indices.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Civil
Negar Tayebzadeh Moghadam, Karim C. Abbaspour, Bahram Malekmohammadi, Mario Schirmer, Ahmad Reza Yavari
Summary: Climate change has a stronger impact on water yield compared to landuse change, while landuse change has a more significant effect on sediment yield. The conversion of rangelands to barren land is identified as a critical factor increasing sediment yield. The combined effects of climate and landuse change are projected to have the most significant impact on water balance in the future.
WATER RESOURCES MANAGEMENT
(2021)
Article
Water Resources
Ying Liu, Des E. E. Walling, Mingyi Yang, Fengbao Zhang, Jiaqiong Zhang, Yingge Xie, Tianyin Zhao
Summary: Understanding the magnitude and relative contributions of inter-gully and gully areas to sediment yield in small catchments in the Loess Plateau of China is crucial for comprehending catchment sediment dynamics and developing effective soil and water conservation strategies. This study investigates the sediment response of the Nianyangou catchment in the hilly region of the Loess Plateau, using sediment source fingerprinting techniques. The results show two change points in the sediment response, indicating the impact of conservation measures and land tenure system changes. The trends of annual sediment yields and their relative contributions differ between inter-gully and gully areas.
HYDROLOGICAL PROCESSES
(2022)
Article
Geosciences, Multidisciplinary
Csilla Farkas, Moritz Shore, Alexander Engebretsen, Eva Skarbovik
Summary: Soil erosion caused by rainfall threatens food security and water quality. Climate change and shifts in land use patterns, particularly towards a bioeconomy, can exacerbate soil erosion and sediment transport. This study used modeling to investigate the combined effects of future land use changes and climate change on soil loss and sediment yield in a cereal production region in Norway.
Article
Geography, Physical
A. Brenna, N. Surian, L. Mao
Summary: The alteration of sediment transport regime is a key factor affecting the response of rivers to human impacts. Research on the Parma River demonstrated a shift from degradation to recovery in the upstream sector after cessation of in-channel mining, while the downstream sector continues to be affected by reduced sediment transfer due to construction of a detention basin.
Article
Geosciences, Multidisciplinary
Anatoly Tsyplenkov, Matthias Vanmaercke, Adrian L. Collins, Sergey Kharchenko, Valentin Golosov
Summary: Suspended sediment yields from glacierized catchments can be highly variable, with extreme events contributing significantly to the overall sediment flux. Different sediment sources can dominate during specific weather conditions and locations within the catchment, highlighting the complex sediment dynamics in glacierized mountain rivers.
Article
Geosciences, Multidisciplinary
Niguse Abebe, Joris Eekhout, Bart Vermeulen, Carolina Boix-Fayos, Joris de Vente, Berhane Grum, Ton Hoitink, Jantiene Baartman
Summary: Soil erosion is a natural process that can lead to land degradation and geomorphological changes. This study tested the combined method of RUSLE, IC, and SDR to estimate sediment yield and investigate the spatiotemporal variation of soil erosion rates and sediment connectivity in the Mediterranean Rogativa catchment. The results showed the effectiveness of the approach in identifying sources and hotspots of soil erosion in complex catchments.
Article
Multidisciplinary Sciences
Tristan Salles, Laurent Husson, Patrice Rey, Claire Mallard, Sabin Zahirovic, Beatriz Hadler Boggiani, Nicolas Coltice, Maelis Arnould
Summary: Our study utilizes a global-scale landscape evolution model to reconstruct past landscapes and geological processes, incorporating paleoelevation and paleoclimate reconstructions. This model provides continuous quantification of critical metrics for understanding Earth's system, such as global physiography and sediment flux. We reevaluate the role of surface processes in controlling sediment delivery to the oceans and identify stable sedimentation rates during the Cenozoic period with distinct phases of sediment transfer from land to marine basins. Our simulation serves as a tool for identifying inconsistencies in previous interpretations of the geological record and available paleoelevation and paleoclimatic reconstructions.
Article
Geosciences, Multidisciplinary
Shuai Zhang, Guosheng Yang, Jian Zheng, Shaoming Pan, Liguo Cao, Tatsuo Aono, Shinnosuke Yamazaki, Wenfang Zhang, Ji Shen, Yong Wang
Summary: The study of plutonium isotopes, neptunium-237, and cesium-137 in sediment core from Lake Xingkai provides valuable information about their source, deposition process, geochemical behavior, and response to environmental changes in the catchment area.
Article
Environmental Sciences
Niels F. Lake, Nuria Martinez-Carreras, Jean Francois Iffly, Peter J. Shaw, Adrian L. Collins
Summary: Sediment fingerprinting is a method used to identify the sources of sediment in a catchment. Traditional approaches require extensive resources for sampling and laboratory analysis. This study proposes the use of UV-VIS absorbance spectra, measured by submersible spectrophotometers, as a rapid and non-destructive method for sediment fingerprinting. Results showed a relatively low deviation between the spatial source contributions using absorbance and sediment budgeting, indicating the potential of this method for sediment tracing in natural environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
S. Pulley, A. L. Collins
Summary: Measuring sediment colour using an office document scanner is a quick and cost-effective alternative method for tracing sediment sources. Treatment of samples with hydrogen peroxide can potentially improve source discrimination, leading to more precise management efforts.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Geosciences, Multidisciplinary
M. Llena, R. J. Batalla, M. W. Smith, D. Vericat
Summary: The study found that badlands do not always control the export of sediments, with seasonal sediment production sometimes exceeding the amount exported. The channel network plays a key role in controlling pulses of sediment transfer, depending on whether the drainage network acts as a sediment sink or source.
Article
Environmental Studies
Devika Nair, Ken G. Evans, Sean M. Bellairs
Summary: This study aimed to analyze the impact of rainfall events on the upper catchment and their effect on downstream geomorphology using the HEC-HMS model. The research showed that the landform gradually attains stability over time, as indicated by the decreasing sediment spikes following rainfall-runoff events. The study also predicted the sediment yield based on simulated rainfall trends over a projected 50-year period.
Article
Water Resources
Cedric Legout, Guilhem Freche, Romain Biron, Michel Esteves, Oldrich Navratil, Guillaume Nord, Magdalena Uber, Thomas Grangeon, Nico Hachgenei, Brice Boudevillain, Celine Voiron, Lorenzo Spadini
Summary: The Galabre catchment, part of the French network of critical zone observatories, was instrumented in 2007 to study suspended sediments dynamics in areas with highly erodible badlands on different lithologies. The site includes meteorological stations, gauging stations, and automatic water sampling systems to quantify sediment fluxes and analyze the links between meteorological forcing and watershed hydrosedimentary response. The measurements were extended to the dissolved phase in 2017 to understand water origin during events and the partitioning between particulate and dissolved fluxes of solutes in the critical zone.
HYDROLOGICAL PROCESSES
(2021)
Article
Water Resources
Masoud Goharrokhi, David A. Lobb, Philip N. Owens
HYDROLOGICAL PROCESSES
(2020)
Article
Environmental Sciences
Andrew K. Hamilton, Bernard E. Laval, Ellen L. Petticrew, Sam J. Albers, Michael Allchin, Susan A. Baldwin, Eddy C. Carmack, Stephen J. Dery, Todd D. French, Brody Granger, Kelly E. Graves, Philip N. Owens, Daniel T. Selbie, Svein Vagle
WATER RESOURCES RESEARCH
(2020)
Article
Environmental Sciences
Masoud Goharrokhi, Gregory K. McCullough, Philip N. Owens, David A. Lobb
Summary: The study revealed that net deposition is the main process in the South and North Basins of Lake Winnipeg, while transportation dominates in the Narrows. The Red River is the largest fluvial source of sediment to the lake, contributing 35% of the total sediment load. Erosion of north shore banks also plays a significant role, accounting for up to 50% of the total sediment load to the lake.
JOURNAL OF GREAT LAKES RESEARCH
(2021)
Article
Fisheries
Andrew O. Hughes, Manawa K. Huirama, Philip N. Owens, Ellen L. Petticrew
Summary: The study used radionuclide tracing to determine the relative contributions of stream bank and hillslope-derived sediment in three catchments in the upper North Island of New Zealand. Both lithogenic and fallout radionuclides were used to differentiate sediment sources, and a mixing model approach was utilized for prediction. The results showed that stream bank erosion can contribute significantly to sediment in New Zealand catchments.
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
(2022)
Article
Agronomy
Kristen A. Kieta, Philip N. Owens, Jason A. Vanrobaeys, David A. Lobb
Summary: In cold climates, vegetation in vegetated filter strips (VFS) releases phosphorus (P) during freeze-thaw cycles, potentially leading to P loss through surface runoff or leaching. Therefore, harvesting vegetation may be a suitable management strategy for VFS in these regions.
Editorial Material
Environmental Sciences
Philip N. Owens
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Environmental Sciences
Brody Granger, Bernard Laval, Svein Vagle, Ellen L. Petticrew, Philip N. Owens, Susan A. Baldwin
Summary: In 2014, a tailings dam failure at Mount Polley Mine caused a large amount of mine waste to enter Quesnel Lake. The study found that suspended sediment concentrations remained elevated for several seasons postspill but gradually decreased, and it is predicted to return to pre-spill levels after approximately 7 years.
WATER RESOURCES RESEARCH
(2022)
Article
Water Resources
Masoud Goharrokhi, Gregory K. McCullough, David A. Lobb, Philip N. Owens, Alexander J. Koiter
Summary: This study examines the sediment contributions and impacts on downstream of the regulated rivers, Burntwood River (BR) and Upper Nelson River (UNR), in the subarctic region of Canada. The research reveals that Lake Winnipeg effectively separates UNR from its surrounding sediment sources, and climate change and flow regulation have significant effects on sediment loads in the rivers.
HYDROLOGICAL PROCESSES
(2022)
Review
Environmental Sciences
K. A. Kieta, P. N. Owens, E. L. Petticrew, T. D. French, A. J. Koiter, P. M. Rutherford
Summary: Wildfires are increasing in size and severity in certain regions due to human-caused climate change, historical fire management, and changing species diversity. While research on the effects of wildfires on human health, forest ecology, and soil properties is extensive, there is less focus on the impact of wildfires on watersheds and the contamination of surface waters and sediments. Recent studies have shown that wildfires release significant amounts of toxic and mutagenic compounds, such as polycyclic aromatic hydrocarbons (PAHs). This paper aims to review the literature on the contamination of water and sediment by wildfire-derived PAHs and identify research gaps.
ENVIRONMENTAL REVIEWS
(2023)
Article
Environmental Sciences
P. N. Owens, E. L. Petticrew, S. J. Albers, T. D. French, B. Granger, B. Laval, J. Lindgren, R. Sussbauer, S. Vagle
Summary: Failures of mine tailings storage facilities can have profound and long-lasting effects on downstream environments, especially in river systems without large lakes. The failure of the Mount Polley copper-gold mine tailings storage facility in British Columbia, Canada, released 25 million cubic meters of water and solids, making it the second largest tailings spill in history. This spill had significant impacts on Quesnel Lake, a crucial habitat for Pacific salmon and trout populations. Resuspension of unconsolidated tailings and sediments in the lake during autumnal turnover resulted in elevated copper concentrations in the fluvial sediment of Quesnel River during each winter since the spill.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geography, Physical
Caroline Clason, Sally Rangecroft, Philip N. Owens, Edyta Lokas, Giovanni Baccolo, Nick Selmes, Dylan Beard, Jessica Kitch, Rosa Maria Dextre, Sergio Morera, Will Blake
Summary: Mountain glaciers are essential for freshwater supply, impacting water, energy, and food security for hundreds of millions of people. Assessing the decrease in glacial meltwater and its impact on resource security is crucial for managing changing freshwater dynamics in a warming world. Understanding the flow of water, sediment, and contaminants through glacial systems is necessary for evaluating meltwater contribution to downstream resource security. This paper discusses the socio-environmental role of glacier-fed waters, research priorities for assessing meltwater quantity and quality, and the importance of a transdisciplinary and inclusive research approach.
ANNALS OF GLACIOLOGY
(2023)
Article
Forestry
K. A. Kieta, P. N. Owens, E. L. Petticrew
Summary: This study aims to quantify the temporal and spatial extent of polycyclic aromatic hydrocarbons (PAHs) contamination in the Nechako River Basin (NRB) after a severe wildfire, and to identify the primary sources of PAHs in the watershed. The results show that PAH concentrations decrease over time in soil samples, but are still higher than unburned samples. The concentrations of PAHs in tributary sediment samples were higher immediately after the wildfire, but this trend has reversed in the years since. Overall, wildfires are a significant source of environmental contamination in terrestrial and aquatic environments.
INTERNATIONAL JOURNAL OF WILDLAND FIRE
(2023)
Article
Environmental Sciences
Philip N. Owens, Tim A. Stott, Will H. Blake, Geoffrey E. Millward
Summary: Research has found that cryoconite on glaciers contains significantly higher concentrations of fallout radionuclides compared to moraine and suspended sediment. This suggests that cryoconite can scavenge fallout radionuclides from glacial meltwater, posing a potential risk to downstream terrestrial and aquatic ecosystems.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2023)
Article
Environmental Sciences
K. A. Kieta, P. N. Owens, E. L. Petticrew
Summary: The purpose of this research was to determine if a severe wildfire caused changes in sediment sources and to evaluate the use of PAHs and color properties as tracers. The results showed that the wildfire had a noticeable impact on sediment sources, and color tracers provided more realistic results.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Editorial Material
Environmental Sciences
Philip N. Owens
JOURNAL OF SOILS AND SEDIMENTS
(2020)
