Article
Environmental Sciences
Lei Zhang, Cheng Liu, Kai He, Qiushi Shen, Jicheng Zhong
Summary: The study found that methane concentrations in water in black bloom prone areas changed significantly over time, with the highest values appearing in warm months. Methane concentrations in water in these areas were significantly higher compared to control sites, and were consistent with methane concentrations in sediment. Methane concentrations in water showed significant positive correlations with temperature, total phosphorus, total nitrogen, ammonia-N, and soluble reactive phosphorus, but showed a significant inverse correlation with dissolved oxygen.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Wenguang Luo, Yao Yue, Jing Lu, Lina Pang, Senlin Zhu
Summary: This study quantified the effect of hydraulic disturbances on sediment phosphate release in a representative shallow lake in China. The results showed that the release rate of phosphate increased with the intensity of hydraulic disturbances, and varied among different regions. These findings have important implications for water quality assessment and pollutant management in shallow lakes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Kenneth Thoro Martinsen, Theis Kragh, Kaj Sand-Jensen, Mikkel Madsen-Osterbye, Emil Kristensen, Jonas Stage So
Summary: This study investigates the drivers of water column light attenuation (K-d) in Lake Fil, Denmark, after its re-establishment in 2012. The findings show that higher wind speed increases K-d on the same day and the next day, with significant influence from wind direction. The fast variations in K-d highlight the importance of wind on the light climate and subsequent biological elements in shallow lakes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Civil
Tingfeng Wu, Yongwei Sheng, Dong Chen, Boqiang Qin
Summary: The occurrence of high-turbidity events in shallow lakes, such as Lake Taihu in China, can significantly impact lake ecosystems. Through field measurements, sediment settling experiments, and modeling, the processes of sediment erosion and deposition during wind-induced high-turbidity events were studied. It was found that the synchronism of erosion and deposition processes resulted in a near-lakebed turbid water layer, which has implications for understanding endogenous pollution in large eutrophic lakes.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Ming Sheng Ng, Aaron Teo, Peter A. Todd
Summary: Anthropogenic sedimentation is a major cause of declining coral cover worldwide. This study installed sediment traps at different heights above the substrate and found variations in sediment characteristics with increasing trap mouth height. These findings have implications for coral ecology and the standardization of sediment collection protocols.
MARINE POLLUTION BULLETIN
(2022)
Article
Geosciences, Multidisciplinary
Agnes Rostasi, Kornel Racz, Melinda A. Fodor, Boglarka Topa, Zsombor Molnar, Tamas G. Weiszburg, Mihaly Posfai
Summary: This study characterized the formation of modern carbonate sediments in Lake Balaton, Hungary, and found that mineral particles from tributaries and the atmosphere made up a small fraction of the sediment, with autochthonous carbonate being the main contributor. The study also revealed variations in magnesium content in calcite and the presence of dolomite, which had different sources in the lake. The findings provide insights into sediment formation and the retention and release of nutrients by sediment minerals.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Jodie A. Schlaefer, Sterling B. Tebbett, Casey L. Bowden, William P. Collins, Stephanie Duce, Christopher R. Hemingson, Victor Huertas, Michalis Mihalitsis, Juliano Morais, Renato A. Morais, Alexandre C. Siqueira, Robert P. Streit, Sam Swan, Jessica Valenzuela, David R. Bellwood
Summary: This study provides a quantitative snapshot of sediment dynamics on a coral reef, revealing the significant influence of hydrodynamic forces and on-reef processes.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Donald Scavia, Timothy J. Calappi, Casey M. Godwin, Brad Hill, Mari Veliz, Yu-Chen Wang
Summary: This study finds that the concentrations of nitrogen and phosphorus in the lake are higher during wind-driven resuspension events, and the bioavailability of these substances is comparable to other regions. New load estimates based on continuous turbidity measurements show that the previous load was significantly underestimated, being almost 90% higher than traditional estimates.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biodiversity Conservation
Yujun Yi, Chuqiao Lin, Wenjun Wang, Jie Song
Summary: This study investigated the benthic bacterial community composition in different habitat types of Baiyangdian Lake in North China, revealing dominant bacteria in different habitats and their seasonal abundance. Habitat type was found to be the main factor influencing bacterial community composition, while sediment pH and active phosphorus content also played significant roles.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Nathalie Lecrivain, Bernard Clement, Aymeric Dabrin, Juliette Seigle-Ferrand, Damien Bouffard, Emmanuel Naffrechoux, Victor Frossard
Summary: The study revealed that during water-level drawdown, pollution concentration in lake water increases, with suspended particles being the preferred medium for contaminants. Model analysis showed that the effects of wind speed and river discharge on turbidity were enhanced during water drawdown.
Article
Environmental Sciences
Jodie A. Schlaefer, Sterling B. Tebbett, David R. Bellwood
Summary: Most studies only quantify sediment in one reservoir or one sedimentary process, with over-representation of measurements in the water column and sediment trapping rates. Sediments on reef substrata and transitions from water column to benthos were rarely quantified. Only about 20% of sediment measurements were accompanied by quantification of hydrodynamic drivers.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Olga Tammeorg, Gertrud K. Nurnberg, Ilmar Tonno, Anu Kisand, Lea Tuvikene, Tiina Noges, Peeter Noges
Summary: This study investigated the sediment phosphorus (P) mobility in Vortsjarv, a large shallow lake in Estonia, using sorption experiments and long-term monitoring data. The results showed that labile P and iron bound P were the major forms supplying internal P load in the sediments. Internal P load was correlated with the active area and bottom shear stress in summer. The findings suggest that controlling external P loading can effectively manage internal P loading in large lakes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Sun Min Choi, Jun Young Seo, Seong Woon Jeong, Moo Joon Lee, Ho Kyung Ha
Summary: The study revealed that the rapid growth of Spartina on the tidal flat led to the complexity of the salt marsh zone, affecting hydrodynamics and sediment processes. The stems and leaves could effectively trap fine-grained sediments, resulting in significant differences in bed elevation between the two sites. Flocculation of suspended sediments in Spartina communities was mainly controlled by stem-scale turbulence.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sterling B. Tebbett, Jodie A. Schlaefer, Casey L. Bowden, William P. Collins, Christopher R. Hemingson, Scott D. Ling, Juliano Morais, Renato A. Morais, Alexandre C. Siqueira, Robert P. Streit, Sam Swan, David R. Bellwood
Summary: Sediments on coral reefs are influenced by the amount and movement of sediment in different reservoirs. However, research on reef sediment dynamics and their drivers is limited, especially on clear-water offshore reefs. Using quantification methods, this study examined sediment reservoirs/processes and bio-physical drivers in different reef habitats at Lizard Island on the Great Barrier Reef. The findings showed that a significant amount of suspended sediment passed over the reef, but only a small portion settled. Spatial differences in sediment deposition and accumulation were observed, influenced by wave energy and reef geomorphology. These findings highlight the importance of local hydrodynamic conditions in determining sediment fate on coral reefs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geography, Physical
Wenguang Luo, Jing Lu, Senlin Zhu, Yao Yue, Lingjun Xiao
Summary: This study investigated sediment resuspension under hydraulic disturbances by sampling sediment columns from different points in Chaohu Lake and conducting laboratory experiments. The results showed that the response of the sediment surface to hydraulic disturbances varied depending on the strength of the disturbance and sediment surface shear stress. The plankton layer and the new sediment layer were found to play important roles in sediment resuspension.
INTERNATIONAL JOURNAL OF DIGITAL EARTH
(2022)
Article
Environmental Sciences
Olga Tammeorg, Gertrud Nurnberg, Juha Niemisto, Marina Haldna, Jukka Horppila
Article
Biology
Tenna Riis, Mary Kelly-Quinn, Francisca C. Aguiar, Paraskevi Manolaki, Daniel Bruno, Maria D. Bejarano, Nicola Clerici, Maria Rosario Fernandes, Jose C. Franco, Neil Pettit, Ana P. Portela, Olga Tammeorg, Priit Tammeorg, Patricia M. Rodriguez-Gonzalez, Simon Dufour
Article
Environmental Sciences
Erki Tammiksaar, Kulli Kangur
JOURNAL OF GREAT LAKES RESEARCH
(2020)
Article
Environmental Sciences
Jean-Philippe Jenny, Orlane Anneville, Fabien Arnaud, Yoann Baulaz, Damien Bouffard, Isabelle Domaizon, Serghei A. Bocaniov, Nathalie Chevre, Maria Dittrich, Jean-Marcel Dorioz, Erin S. Dunlop, Gael Dur, Jean Guillard, Thibault Guinaldo, Stephan Jacquet, Aurelien Jamoneau, Zobia Jawed, Erik Jeppesen, Gail Krantzberg, John Lenters, Barbara Leoni, Michel Meybeck, Veronica Nava, Tiina Noges, Peeter Noges, Martina Patelli, Victoria Pebbles, Marie-Elodie Perga, Serena Rasconi, Carl R. Ruetz, Lars Rudstam, Nico Salmaso, Sharma Sapna, Dietmar Straile, Olga Tammeorg, Michael R. Twiss, Donald G. Uzarski, Anne-Mari Ventela, Warwick F. Vincent, Steven W. Wilhelm, Sten-Ake Wangberg, Gesa A. Weyhenmeyer
JOURNAL OF GREAT LAKES RESEARCH
(2020)
Article
Limnology
Burak Oglu, Tonu Mols, Tanel Kaart, Fabien Cremona, Kulli Kangur
Article
Green & Sustainable Science & Technology
S. Grafakos, G. Viero, D. Reckien, K. Trigg, V. Viguie, A. Sudmant, C. Graves, A. Foley, O. Heidrich, J. M. Mirailles, J. Carter, L. H. Chang, C. Nador, M. Liseri, L. Chelleri, H. Orru, K. Orru, R. Aelenei, A. Bilska, B. Pfeiffer, Q. Lepetit, J. M. Church, M. Landauer, A. Gouldson, R. Dawson
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2020)
Article
Multidisciplinary Sciences
Yu-Chun Kao, Mark W. Rogers, David B. Bunnell, Ian G. Cowx, Song S. Qian, Orlane Anneville, T. Douglas Beard, Alexander Brinker, J. Robert Britton, Rene Chura-Cruz, Natasha J. Gownaris, James R. Jackson, Kulli Kangur, Jeppe Kolding, Anatoly A. Lukin, Abigail J. Lynch, Norman Mercado-Silva, Rodrigo Moncayo-Estrada, Friday J. Njaya, Ilia Ostrovsky, Lars G. Rudstam, Alfred L. E. Sandstrom, Yuichi Sato, Humberto Siguayro-Mamani, Andy Thorpe, Paul A. M. van Zwieten, Pietro Volta, Yuyu Wang, Andras Weiperth, Olaf L. F. Weyl, Joelle D. Young
NATURE COMMUNICATIONS
(2020)
Article
Food Science & Technology
Kristel Panksep, Marju Tamm, Evanthia Mantzouki, Anne Rantala-Ylinen, Reet Laugaste, Kaarina Sivonen, Olga Tammeorg, Veljo Kisand
Article
Environmental Sciences
Mina Kiani, Priit Tammeorg, Juha Niemisto, Asko Simojoki, Olga Tammeorg
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Mina Kiani, Henn Raave, Asko Simojoki, Olga Tammeorg, Priit Tammeorg
Summary: Research found that applying nutrient-rich sediment to soil can improve plant yield and nutrient uptake, while reducing nutrient leaching. In the experiment, applying biochar between sediment and soil can reduce phosphorus and nitrogen leaching, providing a promising technique for crop production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Soila Silvonen, Juha Niemisto, Adrian Csibran, Tom Jilbert, Peter Torma, Tamas Kramer, Leena Nurminen, Jukka Horppila
Summary: Hypolimnetic withdrawal (HW), a lake restoration method based on phosphorus removal, faces the challenge of balancing effective P removal with maintaining thermal stratification. By adjusting withdrawal rate and using diffusive fluxes, it is possible to remove phosphorus without disturbing thermal stratification and shift the P budget of the lake to negative, showing great potential for lake restoration. Optimizing HW based on diffusive flux of P and utilizing a closed-circuit system could further enhance its effectiveness.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Horacio E. Zagarese, Maria de los Angeles Gonzalez Sagrario, Dieter Wolf-Gladrow, Peeter Noges, Tiina Noges, Kulli Kangur, Shin-Ichiro S. Matsuzaki, Ayato Kohzu, Michael J. Vanni, Deniz Ozkundakci, Santiago A. Echaniz, Alicia Vignatti, Fabian Grosman, Pablo Sanzano, Bryce Van Dam, Lesley B. Knoll
Summary: The study found that CO2 undersaturation occurs more frequently in agriculturally impacted lakes, especially at high irradiance levels and shallow water areas. Analysis using Generalized Additive Models revealed that high irradiance levels and high chlorophyll a concentrations are associated with CO2 depletion. The study also provided the first evidence of whole-lake carbon limitation of phytoplankton biomass.
Article
Engineering, Environmental
S. Silvonen, J. Niemisto, J. Myyrylainen, O. Kinnunen, S. Huotari, L. Nurminen, J. Horppila, T. Jilbert
Summary: Hypolimnetic withdrawal combined with water treatment is effective in removing phosphorus from eutrophic lakes. The addition of calcium hydroxide and biopolymer enhances the precipitation of phosphorus, leading to better removal. However, the resulting precipitates may contain high levels of heavy metals.
Article
Environmental Sciences
Olga Tammeorg, Gertrud K. Nuernberg, Peeter Noges, Juha Niemistoe
Summary: This study investigated the factors influencing phosphorus release in Finnish lakes and found that organic substances can inhibit phosphorus release rates. Analysis of a larger dataset of northern lakes confirmed the negative effect of organic substances and identified sediment total phosphorus and organic matter content as the best predictors of release rate.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Limnology
Soila Silvonen, Leena Nurminen, Jukka Horppila, Juha Niemisto, Tom Jilbert
Summary: Closed-circuit hypolimnetic withdrawal and treatment systems (HWTS) are a novel lake restoration technique. The analysis suggests that the effluent from the treatment system has minimal impact on the water quality of the lake.