Article
Environmental Sciences
Farshad Shafiei
Summary: This study on a large reservoir shows that the retention of total phosphorus (TP) is high while the retention of total nitrogen (TN) is lower and more variable over the long term. The retention of TP is primarily controlled by in-lake sedimentation, while the retention of TN may be more influenced by in-lake biological processes. These findings are important in understanding the nutrient retention efficiency in larger reservoirs with water residence time of 1-3 years and the impacts of climate variability and water management on nutrient retention.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jay F. Martin, Margaret M. Kalcic, Noel Aloysius, Anna M. Apostel, Michael R. Brooker, Grey Evenson, Jeffrey B. Kast, Haley Kujawa, Asmita Murumkar, Richard Becker, Chelsie Boles, Remegio Confesor, Awoke Dagnew, Tian Guo, Colleen M. Long, Rebecca L. Muenich, Donald Scavia, Todd Redder, Dale M. Robertson, Yu-Chen Wang
Summary: To reduce harmful algal blooms in Lake Erie, best management practices need to be implemented to decrease nutrient loading from upstream sources. Row crop agriculture dominates the land use in the Western Lake Erie Basin, requiring efforts to mitigate nutrient loads from agricultural systems. Research shows that subsurface placement of phosphorus fertilizers, cover crops, riparian buffers, and wetlands are among the most effective management options.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
P. C. Hanson, R. Ladwig, C. Buelo, E. A. Albright, A. D. Delany, C. C. Carey
Summary: Lake water quality is greatly degraded in eutrophic systems due to legacy nutrients. Water quality improvement depends on changes in phosphorus and organic carbon storage, with different variables improving at different rates.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Ecology
Ted Ozersky, Andrew Camilleri
Summary: Research found that the growth of periphyton in lakes is mainly limited by primary N or N + P co-limitation, with more severe nutrient limitations in eutrophic lakes, supporting the different responses of phytoplankton and periphyton to nutrient enrichment. Additionally, periphyton can serve as an early warning indicator of nutrient pollution, and oligotrophic lakes are more susceptible to localized benthic algal blooms.
FRESHWATER BIOLOGY
(2021)
Article
Environmental Sciences
Sandra Poikane, Martyn G. Kelly, Gabor Varbiro, Gabor Borics, Tibor Eros, Seppo Hellsten, Agnieszka Kolada, Balazs Andras Lukacs, Anne Lyche Solheim, Jose Pahissa Lopez, Nigel J. Willby, Georg Wolfram, Geoff Phillips
Summary: This study provides ecology-based nutrient targets for five major ecoregions in Europe and reveals strong relationships between phosphorus and phytoplankton. However, the relationships between nutrient and biological communities are weak or non-significant in the very shallow lakes of the Eastern Continental region. Additionally, fish stocking negatively affects the ecological status of Eastern Continental lakes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Hongwei Lu, Wei Feng, Pengdong Yan, Jiajie Kang, Chunfang Jiang, Qing Yu, Tianci Yao, Yuxuan Xue, Dongzhe Liang, Yiming Yan
Summary: The study shows that multilateral crop trading can effectively reduce nutrient surplus and footprint, and drive a decrease in nutrient surplus for trading countries. Strengthening optimal multilateral crop trading globally can contribute to global nutrient management.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Environmental Sciences
A. Van Heyst, A. Sinclair, R. Jamieson
Summary: The lakes in southwestern Nova Scotia, Canada are experiencing cultural eutrophication mainly driven by phosphorus inputs from expanding mink farming industry. This study highlights the importance of considering these nutrient sources in watershed management plans to address water quality issues in the region.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Marine & Freshwater Biology
Mikayla M. Baer, Casey M. Godwin, Thomas H. Johengen
Summary: The primary management strategy for minimizing harmful algal blooms in Lake Erie has been to reduce phosphorus loading. However, studies have shown that the growth rate and toxin content of the HABs-causing cyanobacterium Microcystis also respond to the availability of dissolved inorganic nitrogen. This study aimed to determine whether a combined decrease in nitrogen and phosphorus concentrations could limit the development of HABs more than a reduction in phosphorus concentration only.
Article
Engineering, Environmental
Apoorva M. Sampat, Andrea Hicks, Gerardo J. Ruiz-Mercado, Victor M. Zavala
Summary: This study proposes a computational framework to quantify the economic impacts of harmful algae blooms (HABs) caused by nutrient pollution from livestock waste. Through a case study in the Upper Yahara watershed region in Wisconsin, USA, it is demonstrated that every excess kilogram of phosphorus runoff from livestock waste results in total economic losses of 74.5 USD. Coordinated market analysis shows that this economic impact can activate a nutrient management and valorization market to help balance phosphorus within the study area. The proposed framework can assist regulatory agencies in developing policies to mitigate the impacts of nutrient pollution.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Engineering, Environmental
Manhua Luo, Yan Zhang, Kai Xiao, Xuejing Wang, Xiaolang Zhang, Gang Li, Hailong Li
Summary: Driven by anthropogenic activities, eutrophication has become a global issue. This study analyzed radium isotopes and nutrient data to evaluate the influence of submarine groundwater discharge (SGD) on potential eutrophication in Liaodong Bay (LDB). The study found that groundwater had higher concentrations of dissolved inorganic nitrogen, phosphorous, and silicate compared to seawater and river water. The study also highlighted that SGD is a significant source of nutrients, contributing a large proportion of nutrient inputs to LDB.
Article
Engineering, Environmental
Balaji-Prasath Barathan, Wenting Chen, Yuping Su, Xue Wang, Yinxing Chen
Summary: Lake water eutrophication is a major obstacle to sustainable economic development in China. Studies on the effects of mainstream currents on reservoirs have been relatively scarce, although changes in water-sediment transport regime in downstream rivers may influence nutrient transport in connected lakes. This study focused on Sanshiliujiao Lake in Fujian, China and aimed to estimate the phosphorus and nitrogen loads to the lake, explore their sources, and assess their ecological effects. The study found that water diversion and non-point sources were the main contributors to the total phosphorus and total nitrogen loads, and water diversion also affected the structure and abundance of phytoplankton communities.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Environmental Sciences
Daniel A. Lemley, Chuene P. Lakane, Susan Taljaard, Janine B. Adams
Summary: This study investigates the efficiency of nutrient removal in a constructed wetland used to treat urban runoff. The findings show low removal efficiency for dissolved inorganic nutrient (DIN), but high efflux of dissolved inorganic phosphate (DIP). Due to short water residency and increased flow volume, the surface area of the wetland needs to be increased to cope with the current daily inputs.
MARINE POLLUTION BULLETIN
(2022)
Article
Biodiversity Conservation
Sandra Poikane, Gabor Varbiro, Martyn G. Kelly, Sebastian Birk, Geoff Phillips
Summary: The study finds significant variation in the methods used by European countries to set river nutrient thresholds, with some countries relying on expert judgement or statistical distribution, while others prefer statistical relationships based on biological variables. For the first time, an ecology-based approach is used to derive nutrient thresholds for various river types in Central Europe. The results demonstrate that adopting ecology-based nutrient targets could improve sustainable river management where nutrients are the main pressure preventing the achievement of good ecological status.
ECOLOGICAL INDICATORS
(2021)
Article
Engineering, Environmental
Xiangzhen Kong, Maria Determann, Tobias Kuhlmann Andersen, Carolina Cerqueira Barbosa, Tallent Dadi, Annette B. G. Janssen, Ma. Cristina Paule-Mercado, Diego Guimaraes Florencio Pujoni, Martin Schultze, Karsten Rinke
Summary: Phosphorus (P) precipitation is an effective method to mitigate lake eutrophication, but it can lead to re-eutrophication and harmful algal blooms. The role of lake warming and its synergistic effects with internal loading have been understudied.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Robert Ladwig, Paul C. Hanson, Hilary A. Dugan, Cayelan C. Carey, Yu Zhang, Lele Shu, Christopher J. Duffy, Kelly M. Cobourn
Summary: The concentration of oxygen plays a critical role in lake water quality and ecosystem functioning by controlling habitat availability, redox reactions, and organic material recycling. In eutrophic lakes, oxygen depletion in the bottom layer during summer stratification is a common occurrence. The evolution of lake anoxia over decadal timescales is influenced by both external drivers (e.g., nutrient loads, meteorology) and internal mechanisms (e.g., organic matter recycling, phytoplankton blooms).
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Editorial Material
Ecology
Monica G. Turner, Stephen R. Carpenter
Article
Limnology
Stephen R. Carpenter, Eric G. Booth, Christopher J. Kucharik
LIMNOLOGY AND OCEANOGRAPHY
(2018)
Article
Environmental Sciences
Emily K. Read, Lindsay Carr, Laura De Cicco, Hilary A. Dugan, Paul C. Hanson, Julia A. Hart, James Kreft, Jordan S. Read, Luke A. Winslow
WATER RESOURCES RESEARCH
(2017)
Article
Environmental Sciences
Jiangxiao Qiu, Stephen R. Carpenter, Eric G. Booth, Melissa Motew, Samuel C. Zipper, Christopher J. Kucharik, Steven P. Loheide, Andmonica G. Turner
ENVIRONMENTAL RESEARCH LETTERS
(2018)
Article
Environmental Sciences
Melissa Motew, Eric G. Booth, Stephen R. Carpenter, Xi Chen, Christopher J. Kucharik
ENVIRONMENTAL RESEARCH LETTERS
(2018)
Review
Ecology
Zak Ratajczak, Stephen R. Carpenter, Anthony R. Ives, Christopher J. Kucharik, Tanjona Ramiadantsoa, M. Allison Stegner, John W. Williams, Jien Zhang, Monica G. Turner
TRENDS IN ECOLOGY & EVOLUTION
(2018)
Article
Limnology
M. L. Pace, S. R. Carpenter, G. M. Wilkinson
LIMNOLOGY AND OCEANOGRAPHY
(2019)
Article
Ecology
Zofia E. Taranu, Stephen R. Carpenter, Victor Frossard, Jean-Philippe Jenny, Zoe Thomas, Jesse C. Vermaire, Marie-Elodie Perga
Article
Geography, Physical
M. Allison Stegner, Zak Ratajczak, Stephen R. Carpenter, John W. Williams
QUATERNARY SCIENCE REVIEWS
(2019)
Article
Ecology
Gretchen J. A. Hansen, Luke A. Winslow, Jordan S. Read, Melissa Treml, Patrick J. Schmalz, Stephen R. Carpenter
Article
Multidisciplinary Sciences
M. Nystrom, J. -B. Jouffray, A. V. Norstrom, B. Crona, P. Sogaard Jorgensen, S. R. Carpenter, O. Bodin, V. Galaz, C. Folke
Article
Multidisciplinary Sciences
Holly S. Embke, Andrew L. Rypel, Stephen R. Carpenter, Greg G. Sass, Derek Ogle, Thomas Cichosz, Joseph Hennessy, Timothy E. Essington, M. Jake Vander Zanden
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2019)
Article
Green & Sustainable Science & Technology
Steven J. Lade, Will Steffen, Wim De Vries, Stephen R. Carpenter, Jonathan F. Donges, Dieter Gerten, Holger Hoff, Tim Newbold, Katherine Richardson, Johan Rockstroem
NATURE SUSTAINABILITY
(2020)
Article
Limnology
C. D. Buelo, S. R. Carpenter, M. L. Pace
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2018)
Article
Limnology
Stephen R. Carpenter, Michael L. Pace
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2018)