Spatial and temporal variations of suspended solid concentrations from 2000 to 2013 in Poyang Lake, China

Wang, Juanle; Chen, Eryang; Li, Ge; Zhang, Lu; Cao, Xiaoming; Zhang, Yongjie; Wang, Yujie

doi:10.1007/s12665-018-7773-z

Cited by 7 publications

(4 citation statements)

References 17 publications

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“…It was generally agreed that the concentration of SPM in the flood period was slightly higher than in the dry period. However, the study of Poyang Lake found the opposite conclusion, showing the characteristics of a higher concentration of SPM in the dry period and a lower concentration of SPM in the flood period [46]. found that the temporal changes in the shallow lake SPM were mainly human induced.…”

Section: Spatiotemporal Distribution Of Spm 41 Temporal Distributionmentioning

confidence: 96%

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The Source, Distribution, and Environmental Effects of Suspended Particulate Matter in the Yangtze River System

Fan,

Yang,

Cheng

et al. 2023

Water

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Suspended particulate matter (SPM) plays a crucial role in biogeochemical cycles in the aquatic environment because of its ubiquitous presence, mobility, and physicochemical properties. This work gathered and summarized the published information about SPM in the Yangtze River system, including source, distribution, and environmental effects. Results indicated that the SPM concentration was high in the flood period and low in the dry period. Compared to midstream and downstream, the SPM concentration was the lowest in the upstream of the Yangtze River system. Furthermore, the level of SPM concentration was influenced by human activities, such as shipping, dredging, construction of water conservancy projects, and industrial/agricultural emissions, as well as natural conditions, such as wind, rainfall, and phytoplankton. Moreover, SPM would impact the element cycle in the water environment, including N, P, heavy metal, and persistent organic pollutants. In addition, SPM adsorbed these elemental ions or particles in water on its surface. Still, this adsorption was usually unstable, and when the properties of SPM itself or external environmental conditions changed, these elements would be released into the surrounding water body. With the flow of SPM in the water, these elements migrated upstream and downstream with the river. Thus, this work reveals the current status of SPM in the Yangtze River system, which provides an essential reference for further research on SPM in the water system.

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Section: Spatiotemporal Distribution Of Spm 41 Temporal Distributionmentioning

confidence: 96%

“…In rivers, high concentrations of SPM are caused by sandy suspension caused by shipping [11]. The study of shipping in Poyang Lake revealed that shipping led to sediment disturbance and increased concentrations of suspended solids [46]. Lake shipping can also change the spatial distribution of SPM [11].…”

Section: Anthropogenic Factors Shippingmentioning

confidence: 99%

The Source, Distribution, and Environmental Effects of Suspended Particulate Matter in the Yangtze River System

Fan,

Yang,

Cheng

et al. 2023

Water

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“…Regarding the temporal variation of the concentration of TSM, the mean concentration was the lowest in summer (August 2015) [42]. At that time, water temperature and water level of Poyang Lake both reached their highest yearly levels.…”

Section: Spatial and Seasonal Variation Of Tsmmentioning

confidence: 96%

Extraction of Spatial and Temporal Patterns of Concentrations of Chlorophyll-a and Total Suspended Matter in Poyang Lake Using GF-1 Satellite Data

Gao

Wang

2020

Remote Sensing

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Poyang Lake is the largest freshwater lake in China. Its ecosystem services and functions, such as water conservation and the sustaining of biodiversity, have significant impacts on the security and sustainability of the regional ecology. The lake and wetlands of the Poyang Lake are among protected aquatic ecosystems with global significance. The Poyang Lake region has recently experienced increased urbanization and anthropogenic disturbances, which has greatly impacted the lake environment. The concentrations of chlorophyll-a (Chl-a) and total suspended matter (TSM) are important indicators for assessing the water quality of lakes. In this study, we used data from the Gaofen-1 (GF-1) satellite, in situ measurements of the reflectance of the lake water, and the analysis of the Chl-a and TSM concentrations of lake water samples to investigate the spatial and temporal variation and distribution patterns of the concentrations of Chl-a and TSM. We analyzed the measured reflectance spectra and conducted correlation analysis to identify the spectral bands that are sensitive to the concentration of Chl-a and TSM, respectively. The study suggested that the wavelengths corresponding to bands 1, 3, and 4 of the GF-1 images were the most sensitive to changes in the concentration of Chl-a. The results showed that the correlation between the reflectance and TSM concentration was the highest for wavelengths that corresponded to band 3 of the GF-1 satellite images. Based on the analysis, bands 1, 3, and 4 of GF-1 were selected while using the APPEL (APProach by ELimination) model and were used to establish a model for the retrieval of Chl-a concentrations. A single-band model that was based on band 3 of GF-1 was established for the retrieval of TSM concentrations. The modeling results revealed the spatial and temporal variations of water quality in Poyang Lake between 2015 and 2016 and demonstrated the capacities of GF-1 in the monitoring of lake environment.

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“…As concentrações de SST de águas superficiais podem ter variações significativas ao longo do ano (FOX;ALEXANDER, 2015;WANG et al, 2018;XU et al, 2009), seja por intensidade de chuvas que carreiam sedimentos para os rios (MCCARTHY et al, 2012), seja por ações antropológicas, por exemplo (ADEOLA FASHAE et al, 2019). No presente trabalho, as variações de SST afluente podem ter ocorrido tanto pela coleta de água de rios diferentes quanto pela diluição dos SST ao se realizar a mistura com concentrado de OR ou com água do mar (Tabela 1).…”

Section: Coagulação Floculação Sedimentação E Filtraçãounclassified

Sistema de tratamento convencional seguido de eletrodiálise aplicado à simulação de dessalinização de águas salobras

Proença,

Rogério Széliga

2023

Eng. Sanit. Ambient.

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A escassez de água disponível tem gerado a necessidade da utilização de fontes alternativas de água para abastecimento público. Neste trabalho foi avaliada a eficiência do sistema de bancada por batelada no tratamento por coagulação, floculação, sedimentação e filtração (CFS-F) seguido de eletrodiálise (ED) no tratamento de água salobra, a fim de propor uma alternativa para a dessalinização. A água salobra (afluente do sistema de tratamento proposto) possuía concentrações de 1.000, 2.000 e 3.000 ± 180 mg.L -1 de sólidos dissolvidos totais (SDT). O tratamento convencional consistia em CFS-F com cloreto de polialumínio como coagulante, sendo a dosagem previamente ajustada por ensaios de Jar Test. A CFS-F removeu sólidos suspensos totais (20,02 a 99,99%), turbidez (78,13 a 98,45%) e cor aparente (85,05 a 99,99%), porém não ocorreu alteração da concentração de SDT. A ED foi eficiente na redução de 90,01, 94,72 e 96,73% de SDT do diluído para as concentrações afluentes de 1.000, 2.000 e 3.000 ± 180 mg.L -1 de SDT, respectivamente. Para obter diluído efluente pelo sistema proposto com concentração de SDT menor que 100 mg.L -1 , observou-se maior tempo de tratamento para as maiores concentrações de SDT afluente à ED. No entanto, quanto maior o teor de SDT de diluído e concentrado afluente maior a corrente elétrica correspondente ao aplicar tensão constante de 30 V. Isso demonstra que a concentração de SDT dentro do equipamento de ED influencia a corrente elétrica que, por sua vez, aumenta a taxa de fluxo de íons do diluído para o concentrado, amenizando o fator tempo de tratamento para as maiores concentrações de SDT afluentes.

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Spatial and temporal variations of suspended solid concentrations from 2000 to 2013 in Poyang Lake, China

Cited by 7 publications

References 17 publications

The Source, Distribution, and Environmental Effects of Suspended Particulate Matter in the Yangtze River System

The Source, Distribution, and Environmental Effects of Suspended Particulate Matter in the Yangtze River System

Extraction of Spatial and Temporal Patterns of Concentrations of Chlorophyll-a and Total Suspended Matter in Poyang Lake Using GF-1 Satellite Data

Sistema de tratamento convencional seguido de eletrodiálise aplicado à simulação de dessalinização de águas salobras

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