Eutrophication and Water Quality Assessment in the Poyang Lake Wetlands

Fang, Na; You, Qinghui; Yang, Wenjing; Liu, Xu; Zhou, Yi; Ni, Caiying

doi:10.1007/978-3-319-97725-6_7

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Most freshwater aquatic ecosystems are rapidly deteriorating in quality due to changes in climatic conditions and anthropogenic activities [5,6], leading to eutrophication and habitat pollution [7,8]. Urbanization and modern, intensive agricultural practices have increased the release of untreated wastewater from households, industries, and farms into lakes [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Dynamics in Physico-Chemical Properties, Phytoplankton and Bacterial Diversity as an Indication of the Bovan Reservoir Water Quality

Zlatkovic

Medić

Predojević

et al. 2022

Water

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The study aimed to investigate the physico-chemical properties as well as phytoplankton and bacterial community diversity of Bovan Lake reservoir in Serbia to gain insight into the seasonal dynamic of water quality. All analyses were performed at three localities and water depths in spring, summer, autumn, and winter 2019. Seven phytoplankton phyla comprising 139 taxa were detected at all three localities (Chlorophyta 58%, Bacillariophyta 14%, Cyanobacteria 9%, Chrysophyta 5%, Dinophyta 5%, Euglenophyta 5%, and Cryptophyta 4%). Winter 2019 was characterized by the presence of 36 unique species in all phyla except Euglenophyta. Bacterial diversity analyses showed that Proteobacteria, Actinobacteria, Bacteroidetes, Cyanobacteria, and Verrucomicrobia dominated the water intake locality at all three water depths (0.5, 10, and 20 m below the surface). In general, the physico-chemical parameters, phytoplankton, and bacterial community composition depended on the season and the water depth and showed that Bovan Lake was of satisfactory ecological status and water quality at all localities, and meets the needs for all intended purposes.

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Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Dynamics in Physico-Chemical Properties, Phytoplankton and Bacterial Diversity as an Indication of the Bovan Reservoir Water Quality

Zlatkovic

Medić

Predojević

et al. 2022

Water

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“…Nitrogen and phosphorus are always the two major pollutants in Poyang Lake due to highly intensified agriculture and high population density in its catchment [55]. Water nitrogen and phosphorus concentrations have sharply increased in the last two decades owing to the rapid economic growth [56]. Eutrophication is a worldwide issue that has significantly degraded aquatic ecosystems [57].…”

Section: Water Quality Indexmentioning

confidence: 99%

A Comprehensive Multi-Metric Index for Health Assessment of the Poyang Lake Wetland

Yang,

Zhong,

Xia

et al. 2023

Remote Sensing

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The Poyang Lake wetland is home to many unique and threatened species. However, it has been severely degraded in recent decades due to the joint effects of human influence and climate change. Here we establish a wetland health index (WHI) for Poyang Lake, which considers five types of attributes (biological, water quality, sediment, land use and remote sensing, and socio-economic attributes) of the wetland to evaluate wetland conditions. Forty-nine variables across five categories were assembled as candidate metrics for the WHI through field surveys conducted in 2019 at 30 sample sites. Principal component analyses were performed to identify the most important variables in each of the five categories as the primary metrics of each index category (e.g., biological index). Eighteen variables were finally selected from the five categories to construct the WHI. The WHI scores varied from 0.34 to 0.80 at the 30 sample sites, with a mean of 0.55. The Poyang Lake wetland is generally in fair condition according to our WHI scores. Sample sites where connected rivers flow into the lake were assessed to be in a poor condition, highlighting the importance of reducing pollution input from rivers for wetland conservation. Scores of individual indices of the five categories were not highly correlated (0.29 ≤ pairwise Spearman’s r ≤ 0.69), suggesting that information provided by each index is different and might be complementary. The composite WHI as well as the individual category indices can provide comprehensive information on wetland conditions that would facilitate the development of more targeted and effective strategies for wetland management.

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Spatio-temporal variation of toxin-producing gene abundance in Microcystis aeruginosa from Poyang Lake

Wu,

Zhang,

Yuan

et al. 2023

Environ Sci Pollut Res

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Eutrophication and Water Quality Assessment in the Poyang Lake Wetlands

Cited by 5 publications

References 9 publications

Spatio-Temporal Dynamics in Physico-Chemical Properties, Phytoplankton and Bacterial Diversity as an Indication of the Bovan Reservoir Water Quality

Spatio-Temporal Dynamics in Physico-Chemical Properties, Phytoplankton and Bacterial Diversity as an Indication of the Bovan Reservoir Water Quality

A Comprehensive Multi-Metric Index for Health Assessment of the Poyang Lake Wetland

Spatio-temporal variation of toxin-producing gene abundance in Microcystis aeruginosa from Poyang Lake

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