气候变化领域集成服务门户(CCPortal): Current water quality guidelines across North America and Europe do not protect lakes from salinization

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DOI	10.1073/pnas.2115033119
	Current water quality guidelines across North America and Europe do not protect lakes from salinization
	Hintz, William D.; Arnott, Shelley E.; Symons, Celia C.; Greco, Danielle A.; McClymont, Alexandra; Brentrup, Jennifer A.; Canedo-Arguelles, Miguel; Derry, Alison M.; Downing, Amy L.; Gray, Derek K.; Melles, Stephanie J.; Relyea, Rick A.; Rusak, James A.; Searle, Catherine L.; Astorg, Louis; Baker, Henry K.; Beisner, Beatrix E.; Cottingham, Kathryn L.; Ersoy, Zeynep; Espinosa, Carmen; Franceschini, Jaclyn; Giorgio, Angelina T.; Gobeler, Norman; Hassal, Emily; Hebert, Marie-Pier; Huynh, Mercedes; Hylander, Samuel; Jonasen, Kacie L.; Kirkwood, Andrea E.; Langenheder, Silke; Langvall, Ola; Laudon, Hjalmar; Lind, Lovisa; Lundgren, Maria; Proia, Lorenzo; Schuler, Matthew S.; Shurin, Jonathan B.; Steiner, Christopher F.; Striebel, Maren; Thibodeau, Simon; Urrutia-Cordero, Pablo; Vendrell-Puigmitja, Lidia; Weyhenmeyer, Gesa A.
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:9
英文摘要	Human-induced salinization caused by the use of road deicing salts, agricultural practices, mining operations, and climate change is a major threat to the biodiversity and functioning of freshwater ecosystems. Yet, it is unclear if freshwater ecosystems are protected from salinization by current water quality guidelines. Leveraging an experimental network of land-based and in-lake mesocosms across North America and Europe, we tested how salinization-indicated as elevated chloride (C-) concentration-will affect lake food webs and if two of the lowest Cl- thresholds found globally are sufficient to protect these food webs. Our results indicated that salinization will cause substantial zooplankton mortality at the lowest Cl- thresholds established in Canada (120 mg Cl-/L) and the United States (230 mg Cl-/L) and throughout Europe where Cl- thresholds are generally higher. For instance, at 73% of our study sites, Cl- concentrations that caused a >= 50% reduction in cladoceran abundance were at or below Cl thresholds in Canada, in the United States, and throughout Europe. Similar trends occurred for copepod and rotifer zooplankton. The loss of zooplankton triggered a cascading effect causing an increase in phytoplankton biomass at 47% of study sites. Such changes in lake food webs could alter nutrient cycling and water clarity and trigger declines in fish production. Current Cl- thresholds across North America and Europe clearly do not adequately protect lake food webs. Water quality guidelines should be developed where they do not exist, and there is an urgent need to reassess existing guidelines to protect lake ecosystems from human-induced salinization.
英文关键词	biodiversity; climate change; environmental policy; land use; water quality
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000766706200014
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280648
作者单位	University System of Ohio; University of Toledo; University System of Ohio; University of Toledo; Queens University - Canada; University of California System; University of California Irvine; Dartmouth College; University of Barcelona; University of Quebec; University of Quebec Montreal; University System of Ohio; Ohio Wesleyan University; Wilfrid Laurier University; Toronto Metropolitan University; Rensselaer Polytechnic Institute; Purdue University System; Purdue University; Purdue University West Lafayette Campus; University of California System; University of California San Diego; University of Evora; Universitat de Vic - Universitat Central de Catalunya (UVic-UCC); University of Helsinki; McGill University; Linnaeus University; Uppsala University; Swedish University of Agricultural Sciences; Swedish University of Agricultural Sciences; Karlstad University; Linnaeus University; Universitat de Vic - Universitat Central de Catalunya (UVic-UCC); Montclair State University; Wayne State University; Carl vo...
推荐引用方式 GB/T 7714	Hintz, William D.,Arnott, Shelley E.,Symons, Celia C.,et al. Current water quality guidelines across North America and Europe do not protect lakes from salinization[J],2022,119(9).
APA	Hintz, William D..,Arnott, Shelley E..,Symons, Celia C..,Greco, Danielle A..,McClymont, Alexandra.,...&Weyhenmeyer, Gesa A..(2022).Current water quality guidelines across North America and Europe do not protect lakes from salinization.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(9).
MLA	Hintz, William D.,et al."Current water quality guidelines across North America and Europe do not protect lakes from salinization".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.9(2022).