Mechanisms driving phosphorus release during algal blooms based on hourly changes in iron and phosphorus concentrations in sediments

Water Research, Journal Year: 2018, Volume and Issue: 133, P. 153 - 164

Published: Jan. 18, 2018

Language: Английский

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Internal phosphorus loading from sediments causes seasonal nitrogen limitation for harmful algal blooms

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 625, P. 872 - 884

Published: Jan. 4, 2018

Language: Английский

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Modelling eutrophication in lake ecosystems: A review

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 651, P. 2985 - 3001

Published: Sept. 26, 2018

Language: Английский

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How successful are the restoration efforts of China's lakes and reservoirs?

Environment International, Journal Year: 2018, Volume and Issue: 123, P. 96 - 103

Published: Nov. 29, 2018

China has made considerable efforts to mitigate the pollution of lakes over past decade, but success rate these restoration actions at a national scale remains unclear. The present study compiled 13-year (2005–2017) comprehensive dataset consisting 24,319 records from China's 142 and reservoirs. We developed novel Water Quality Index (WQI-DET), customized water quality classification scheme, investigate spatio-temporal patterns. likelihood regime shifts during our period is examined with sequential algorithm. Our analysis suggests that lake improved also characterized by two WQI-DET abrupt in 2007 2010. However, we found eutrophication problems have not been eradicated heavy metal (HM) displayed an increasing trend. control Cr, Cd As should receive particular attention effort alleviate severity HM pollution. Priority strategies include reduction contribution mining activities implementation soil remediation highly polluted areas. mitigation are more complicated due importance internal nutrient loading can profoundly modulate magnitude timing system response external strategies. contend development rigorous framework quantify socioeconomic benefits well-functioning reservoir ecosystems critically important gain leeway keep investments environment going, especially if improvements many Chinese reservoirs realized timely manner.

Language: Английский

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The magnitude and drivers of harmful algal blooms in China’s lakes and reservoirs: A national-scale characterization

Water Research, Journal Year: 2020, Volume and Issue: 181, P. 115902 - 115902

Published: May 14, 2020

Language: Английский

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Bioenergy generation and simultaneous nitrate and phosphorus removal in a pyrite-based constructed wetland-microbial fuel cell

Bioresource Technology, Journal Year: 2019, Volume and Issue: 296, P. 122350 - 122350

Published: Nov. 2, 2019

Language: Английский

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Contributions of external nutrient loading and internal cycling to cyanobacterial bloom dynamics in Lake Taihu, China: Implications for nutrient management

Limnology and Oceanography, Journal Year: 2021, Volume and Issue: 66(4), P. 1492 - 1509

Published: Feb. 4, 2021

Abstract Harmful cyanobacterial blooms (CyanoHABs) are linked to increasing anthropogenic nitrogen (N) and phosphorus (P) inputs. However, CyanoHABs in many large lakes continue despite extensive abatement efforts, mostly focused on external P loading. Internal nutrient cycling can modify availability limitation; thus, understanding the relative importance of vs. internal loading is essential for developing effective mitigation strategies CyanoHABs. We estimated long‐term budgets Lake Taihu, China, from mass balance models using monitoring input output data 2005 2018 quantify contributions The showed that 9% 63% annual N inputs, respectively, were retained lake. Denitrification removed 54% thus help explain rapid decreases lake concentrations summer limitation. Water column regeneration sustain over short term contributed 38–58% potential demand summer‐fall, Microcystis ‐dominated blooms. release 23–90% demand, although Taihu was a net sink an scale. Our results show helps reductions Furthermore, leaving faster than P, thereby creating persistent Therefore, parallel loading, along with will be most reducing accelerate recovery process this other large, shallow lakes.

Language: Английский

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Imbalance of global nutrient cycles exacerbated by the greater retention of phosphorus over nitrogen in lakes

Nature Geoscience, Journal Year: 2022, Volume and Issue: 15(6), P. 464 - 468

Published: June 1, 2022

Language: Английский

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Restoring small water bodies to improve lake and river water quality in China

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Abstract Climate change, population growth, and agricultural intensification are increasing nitrogen (N) inputs, while driving the loss of inland water bodies that filter excess N. However, interplay between N inputs body dynamics, its implications for quality remain poorly understood. Analyzing data from 1995 to 2015 across China, here, we find a 71% reduction in area small (<10 4.5 m 2 ) (SWB), primarily high-N-input regions. Preferential SWBs, most efficient nutrient filters, places 42% China at high risk due declining SWB density. Currently, removal by is 986 kilotonnes year −1 , but restoring 2.3 million hectares could increase 21%, compared just 5% equivalent restoration large bodies. Targeted crucial improving mitigating pollution China.

Language: Английский

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Spatial distribution of sediment nitrogen and phosphorus in Lake Taihu from a hydrodynamics-induced transport perspective

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 650, P. 1554 - 1565

Published: Sept. 11, 2018

Language: Английский

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