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High-resolution distribution of internal phosphorus release by the influence of harmful algal blooms (HABs) in Lake Taihu.
Environ Res. 2021 Jun 27; 201:111525.ER

Abstract

The Mechanisms driving phosphorus (P) release in sediment of shallow lakes is essential for managing harmful algal blooms (HABs). Accordingly, this study conducted field monitoring of labile P, iron (Fe), sulfur (S), and dissolved manganese (Mn) in different biomass of algae in Lake Taihu. The in-situ technique of ZrO-Chelex-AgI (ZrO-CA) diffusive gradients in thin-films (DGT) and high-resolution dialysis sampler (high resolution-Peeper (HR-Peeper)) were used to measure labile P, Fe, S, and dissolved Mn, as well as their apparent diffusion fluxes at the sediment-water interface (SWI). In addition, the distribution of iron-reducing bacteria (IRB) and sulfate-reducing bacteria (SRB) in sediments was also detected. Results showed that high HABs biomass promoted the reduction of sulfate into labile S, however, IRB is the dominant species. Thus, labile Fe concentrations greatly exceeded labile S concentrations across all sites, indicating that microbial iron reduction (MIR) is the principal pathway for ferric iron reduction. Furthermore, the simple relationship analysis revealed the principal influence P migration and transformation is the Fe-P in high algal biomass sites, while Fe and Mn redox reactions did not significantly influence labile P mobilization in low algal areas.

Authors+Show Affiliations

School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China.School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China.School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China.School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China.School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China.School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, China. Electronic address: ruiming.han@njnu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

34186078

Citation

Yao, Yu, et al. "High-resolution Distribution of Internal Phosphorus Release By the Influence of Harmful Algal Blooms (HABs) in Lake Taihu." Environmental Research, vol. 201, 2021, p. 111525.
Yao Y, Li D, Chen Y, et al. High-resolution distribution of internal phosphorus release by the influence of harmful algal blooms (HABs) in Lake Taihu. Environ Res. 2021;201:111525.
Yao, Y., Li, D., Chen, Y., Liu, H., Wang, G., & Han, R. (2021). High-resolution distribution of internal phosphorus release by the influence of harmful algal blooms (HABs) in Lake Taihu. Environmental Research, 201, 111525. https://doi.org/10.1016/j.envres.2021.111525
Yao Y, et al. High-resolution Distribution of Internal Phosphorus Release By the Influence of Harmful Algal Blooms (HABs) in Lake Taihu. Environ Res. 2021 Jun 27;201:111525. PubMed PMID: 34186078.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-resolution distribution of internal phosphorus release by the influence of harmful algal blooms (HABs) in Lake Taihu. AU - Yao,Yu, AU - Li,Dujun, AU - Chen,Ying, AU - Liu,Huaji, AU - Wang,Guoxiang, AU - Han,Ruiming, Y1 - 2021/06/27/ PY - 2021/03/23/received PY - 2021/05/14/revised PY - 2021/06/10/accepted PY - 2021/6/30/pubmed PY - 2021/6/30/medline PY - 2021/6/29/entrez KW - Harmful algal blooms (HABs) KW - In-situ technique KW - Labile P KW - Lake sediment KW - Sediment-water interface (SWI) SP - 111525 EP - 111525 JF - Environmental research JO - Environ Res VL - 201 N2 - The Mechanisms driving phosphorus (P) release in sediment of shallow lakes is essential for managing harmful algal blooms (HABs). Accordingly, this study conducted field monitoring of labile P, iron (Fe), sulfur (S), and dissolved manganese (Mn) in different biomass of algae in Lake Taihu. The in-situ technique of ZrO-Chelex-AgI (ZrO-CA) diffusive gradients in thin-films (DGT) and high-resolution dialysis sampler (high resolution-Peeper (HR-Peeper)) were used to measure labile P, Fe, S, and dissolved Mn, as well as their apparent diffusion fluxes at the sediment-water interface (SWI). In addition, the distribution of iron-reducing bacteria (IRB) and sulfate-reducing bacteria (SRB) in sediments was also detected. Results showed that high HABs biomass promoted the reduction of sulfate into labile S, however, IRB is the dominant species. Thus, labile Fe concentrations greatly exceeded labile S concentrations across all sites, indicating that microbial iron reduction (MIR) is the principal pathway for ferric iron reduction. Furthermore, the simple relationship analysis revealed the principal influence P migration and transformation is the Fe-P in high algal biomass sites, while Fe and Mn redox reactions did not significantly influence labile P mobilization in low algal areas. SN - 1096-0953 UR - https://www.unboundmedicine.com/medline/citation/34186078/High_resolution_distribution_of_internal_phosphorus_release_by_the_influence_of_harmful_algal_blooms__HABs__in_Lake_Taihu_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0013-9351(21)00819-7 DB - PRIME DP - Unbound Medicine ER -
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