Article
Engineering, Environmental
Jian Zhou, Peter R. Leavitt, Yibo Zhang, Boqiang Qin
Summary: The depth of lakes reflects their susceptibility to human disturbance, with shallow lakes being more prone to anthropogenic eutrophication. Deep lakes, on the other hand, are less affected by human activities.
Article
Green & Sustainable Science & Technology
Bo Qin, Rong Wang, Xiangdong Yang, Qinghui Zhang, Jianan Zheng
Summary: In this study, we conducted a regional assessment of water phosphorus changes in eutrophic lakes in eastern China since 1900 using paleolimnological records and diatom-/chironomid-TP transfer functions. We found three trend types of decrease, increase, and fluctuate in the fifteen TP reconstructions according to cluster analysis of the data correlation results. Increase was the dominant trend, with highly correlated TP changes. Our results highlight the importance of integrating spatial information from paleolimnological records for understanding and managing lake eutrophication.
Article
Environmental Sciences
Xiumei Zhang, Wei Zhen, Henning S. Jensen, Kasper Reitzel, Erik Jeppesen, Zhengwen Liu
Summary: The combined treatment of submerged macrophytes and Phoslock (R) showed stronger improvement in water quality compared to individual measures, especially in reducing soluble reactive phosphorus. The treatment also led to transformation of phosphorus forms in different sediment layers, potentially accelerating lake restoration process.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Dan Wu, Chunqi Shen, Yu Cheng, Jue Ding, Wei Li
Summary: Eutrophication in inland lakes is a common issue caused by urbanization, population growth, and agricultural activities. This study investigated the effects of aquatic vegetation on phosphorus levels in a eutrophic lake, and found that aquatic vegetation can effectively reduce phosphorus concentrations. The reduction rates varied depending on the type of vegetation and the environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Kazem Darvish Bastami, Ali Hamzepoor, Hadi Raeisi, Hosein Bagheri, Mehrnaz Baniamam, Reza Rahnama
Summary: The investigation revealed abundant biogenic SiO2 and different phosphorus forms in the surface sediment of Anzali wetland, with low ecological risk associated with phosphorus.
MARINE POLLUTION BULLETIN
(2021)
Article
Engineering, Environmental
Kaishan Song, Chong Fang, Pierre-Andre Jacinthe, Zhidan Wen, Ge Liu, Xiaofeng Xu, Yingxin Shang, Lili Lyu
Summary: The study found significant changes in the temporal slope of the sum of normalized area, frequency, duration, and early outbreak of algal blooms (ABs) in lakes and reservoirs across China. Influenced by climatic factors, AB-impacted water bodies expanded longitudinally, and the time range of AB observation expanded starting in the 2000s.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Peiyao Deng, Qitao Yi, Jin Zhang, Conghui Wang, Yihan Chen, Tao Zhang, Wenqing Shi
Summary: This study revealed the pattern of P partitioning onto sediment particles and its ecological implications for shallow lakes. The results showed that the distribution of P on particles depended on the amounts of P adsorbents in the sediments, and the concentration of P decreased with particle size.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jorge A. Garcia-Hernandez, Roy Brouwer, Rute Pinto
Summary: This study estimates the impacts of different phosphorus restriction policies on the Great Lakes region using a multi-regional hydro-economic model. The results show the least cost approach to achieve different phosphorus emission reduction targets and highlight the economic implications of reducing phosphorus emissions for Canada.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Civil
Hamed Khorasani, Zhenduo Zhu
Summary: Four pairs of competing hypotheses for phosphorus retention in lakes were assessed, with results indicating certain modeling strategies outperform others. Semi-mechanistic models, combining mechanistic and empirical elements, were found to be most effective in predicting lake total phosphorus levels. The best-fit model identified incorporated a mixed-flow reactor hypothesis with a second-order volumetric reaction rate, outperforming pure mechanistic and empirical models.
JOURNAL OF HYDROLOGY
(2021)
Article
Biodiversity Conservation
Frederic Labat, Gabrielle Thiebaut, Christophe Piscart
Summary: Macrophytes play a key role in the functioning of small shallow lakes, but their composition is affected by anthropogenic pressures. Tools for easily assessing their structure and composition are increasingly needed. This study tested three sampling methods and found that the S(3)m method was rapid, reproducible, and representative for monitoring macrophytes in a wide diversity of SSLs in France.
BIODIVERSITY AND CONSERVATION
(2022)
Review
Environmental Sciences
Boqiang Qin, Yunlin Zhang, Guangwei Zhu, Guang Gao
Summary: Large and shallow freshwater lakes in the middle and lower Yangtze River (MLYR), China, are highly susceptible to eutrophication and cyanobacteria blooms due to extensive sediment-waterr interface and internal loading from sediment. The studies on these lakes have emphasized the importance of addressing in-lake physical and biogeochemical processes to control eutrophication.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Ningning Ji, Yong Liu, Shengrui Wang, Zhihao Wu, Hong Li
Summary: This study examines phosphorus transport and redistribution in a river-lake system in the Lake Erhai basin. The findings suggest that suspended particulate matter (SPM) plays an important role in mediating phosphorus cycling in aquatic ecosystems. Especially, phytoplankton-SPM can buffer phosphate-limitation during algal blooms.
Article
Engineering, Environmental
Dianneke van Wijk, Manqi Chang, Annette B. G. Janssen, Sven Teurlincx, Wolf M. Mooij
Summary: Worldwide, water quality managers aim for a state of clear, macrophyte-dominated shallow lakes rather than turbid, phytoplankton-dominated ones. However, the concept of critical turbidity has been neglected in contemporary water quality models. In this study, an innovative graphical and mathematical model called GPLake-M was developed, combining the theories of critical turbidity and resource competition mechanisms. The results provide insights into the regime shifts in shallow lakes and can serve as a starting point for further research and model development.
Article
Environmental Sciences
Fei Deng, Dongwei Zhang, Liting Yang, Lijuan Li, Yu Lu, Jing Wang, Yujiao Fan, Yanrong Zhu, Xiaowen Li, Yao Zhang
Summary: This study investigates the effects of antibiotics, heavy metals, and antibiotic resistance genes (ARGs) on denitrification in shallow lakes. The results show that antibiotics and metal elements inhibit denitrification, while ARGs stimulate it. Different types of denitrifying bacteria are associated with different environmental factors.
Article
Engineering, Environmental
Pei Lei, Jin Zhang, Jinjie Zhu, Qiaoguo Tan, Raymond W. M. Kwong, Ke Pan, Tao Jiang, Mohammad Naderi, Huan Zhong
Summary: This study reveals the impact of algal organic matter on microbial Hg methylators and MeHg production, showing that bioavailable components of AOM can increase the abundance and activity of methanogens, leading to enhanced levels of dissolved MeHg.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
N. J. Anderson, A. J. Heathcote, D. R. Engstrom, D. B. Ryves, K. Mills, Y. T. Prairie, P. A. del Giorgio, H. Bennion, S. Turner, N. L. Rose, V. J. Jones, N. Solovieva, A. Cook Shinneman, C. E. Umbanhowar, S. C. Fritz, D. Verschuren, J. E. Saros, J. M. Russell, R. Bindler, B. Valero-Garces, M. B. Edlund, R. D. Dietz, A. E. Myrbo
Article
Geosciences, Multidisciplinary
Mei Wang, Kunshan Bao, Adam J. Heathcote, Qiu'an Zhu, Guiyi Cheng, Shenhai Li, Chi Zhang
Summary: The study on metal contaminants in Chinese lakes from sediment records showed an overall increasing burial rate of MCs since 1850, with temporal patterns varying among regions due to different histories of human activities. Lakes in the Eastern Plain and the Yunnan-Guizhou Plateau had higher burial rates of MCs due to more intensive human activities, indicating that the history of human activities in lake catchments plays a significant role in spatial and temporal variations of metal contamination.
Editorial Material
Limnology
Patricia A. Soranno, John A. Downing, Teresa L. Curto
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2021)
Article
Multidisciplinary Sciences
John A. Downing, Stephen Polasky, Sheila M. Olmstead, Stephen C. Newbold
Summary: Economic assessment of global methane emissions from eutrophication-driven lakes reveals significant social costs, exceeding local water quality benefits. Mitigating lake methane emissions presents a huge economic potential for savings.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Marie Spohn, Felipe Aburto, Todd A. Ehlers, Nina Farwig, Patrick J. Frings, Henrik Hartmann, Thomas Hoffmann, Annegret Larsen, Yvonne Oelmann
Summary: This study introduces a conceptual framework on buffering through storage and recycling of elements in terrestrial ecosystems, highlighting the importance of elements' storage and recycling for ecosystem resilience to environmental change.
Article
Marine & Freshwater Biology
Mark B. Edlund, Joy M. Ramstack Hobbs, Adam J. Heathcote, Daniel R. Engstrom, Jasmine E. Saros, Kristin E. Strock, William O. Hobbs, Norman A. Andresen, David D. VanderMeulen
Summary: Evidence suggests that boreal-lake ecosystems are undergoing rapid changes due to climate warming, with variable ecological responses. Paleolimnological analysis revealed significant shifts in diatom communities and increased carbon and biogenic silica burial. The historical response of algal communities indicates that physical characteristics of lakes and watersheds can predict sensitivity to climate change.
Article
Multidisciplinary Sciences
Hailey M. Sauer, Trinity L. Hamilton, Rika E. Anderson, Charles E. Umbanhowar, Adam J. Heathcote
Summary: Microbial communities in lake sediments have the potential to be valuable indicators and integrators of watershed land-use and water quality. This study in Minnesota explored the diversity and composition of bacterial communities in lake sediments and found that they are more likely to cluster by ecological region rather than individual lake properties. The results provide insights into the relationships between taxonomy, physicochemical, and geographic properties of north temperate lakes.
Article
Environmental Sciences
Sydney E. Diamond, Rebecca Harvey, Adam Heathcote, Andrea Lini, Ana M. Morales-Williams
Summary: Lakes in the northeast United States are recovering from acidification, but the effects of climate change on species assemblages are uncertain. This study examined the impact of past acidification on Beaver Pond in Vermont, USA, using long-term water chemistry analysis and paleolimnological analysis. The results suggest that Beaver Pond is experiencing chemical and biological recovery from acid deposition, although the diatom communities in the recovery period differ from those before acidification.
JOURNAL OF PALEOLIMNOLOGY
(2022)
Article
Ecology
Joy M. Ramstack Hobbs, Adam J. Heathcote, David D. VanderMeulen, Mark B. Edlund
Summary: Protected or remote lakes can also be impacted by human activities and various stressors. This study used diatoms as indicators to examine ecological changes in lakes from national parks in the US Great Lakes region, and found that changes in water temperature and mixing were the main drivers of these changes.
Article
Geochemistry & Geophysics
F. Yang, Y. D. Sun, P. J. Frings, L. Luo, J. W. E, L. N. Wang, Y. F. Huang, T. Wang, J. Muller, S. C. Xie
Summary: Permian chert successions were geographically extensive, but there was a multi-million-year chert gap in the Early Triassic. The weakening of chert production was related to water column deoxygenation, increased carbonate and siliciclastic components, and decreased primary productivity. The primary cause of Early Triassic chert demise is the loss of siliceous biomass during the end-Permian crisis.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Environmental Sciences
Jesse Anderson, Andrew Paterson, Catherine Eimers, Reza Valipour, Arthur Zastepa, Caren Binding, Adam Heathcote, Mark Edlund
Summary: This introductory paper outlines eleven research articles included in this special section, focusing on phosphorus sources, lake and watershed modeling, and insights into cyanobacterial and harmful algal blooms (cHABs) in Lake of the Woods (LoW). The paper concludes with a roadmap for future transboundary water quality management, addressing remaining research gaps and future monitoring needs.
JOURNAL OF GREAT LAKES RESEARCH
(2023)
Article
Multidisciplinary Sciences
M. Tatzel, P. J. Frings, M. Oelze, D. Herwartz, N. K. Luensdorf, M. Wiedenbeck
Summary: The O-18/O-16 ratio of cherts increases over time, and two explanations have been proposed: cooling seawater temperature and increasing seawater delta O-18. However, this study shows that cherts are a reliable record of diagenetic temperatures, and the timing and temperature of quartz precipitation are determined by the kinetics of silica diagenesis. Heat flow through the sediment column has decreased over time, accounting for part of the increase in delta O-18(chert), which eliminates the need for extreme seawater temperature or delta O-18(sw) reconstructions.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Ecology
Adam J. Heathcote, Zofia E. Taranu, Nicolas Tromas, Meaghan MacIntyre-Newell, Peter R. Leavitt, Frances R. Pick
Summary: This study used sedimentary DNA analysis to investigate the changes in cyanobacterial communities and toxin genes in nine lakes in Minnesota, USA over the past century. The results showed a significant increase in the abundance of cyanobacteria and potential toxin genes since the 20th century, and land use and lake depth had a major impact on the cyanobacterial communities.
FRESHWATER BIOLOGY
(2023)
Article
Water Resources
Chelsea Delaney, Xiang Li, Kerry Holmberg, Bruce Wilson, Adam Heathcote, John Nieber
Summary: This study developed and tested methods for predicting lake volumes in the lake-rich region of Central Minnesota. Using regression models and machine learning models, the researchers accurately predicted lake volumes and calculated the temporal variation in lake volumes based on changes in lake surface area and land surface area. These models are crucial for understanding the ecosystem processes and environmental conditions of lakes.
FRONTIERS IN WATER
(2022)
Article
Environmental Sciences
N. John Anderson, Daniel R. Engstrom, Peter R. Leavitt, Sarah M. Flood, Adam J. Heathcote
COMMUNICATIONS EARTH & ENVIRONMENT
(2020)