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High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment.
Sci Total Environ. 2019 Feb 10; 650(Pt 1):163-172.ST

Abstract

This study is devoted to addressing the effects of algae blooms on sulfur cycle and the consequent phosphorus mobility in the sediments of freshwater lake ecosystems. A mesocosm experiment was conducted to investigate these effects through monitoring the dynamics of sulfur (S), iron (Fe) and phosphorus (P) in water and sediments, and their diffusion fluxes at the sediment-water interface (SWI). In addition, the abundance of sulfate-reducing bacteria (SRB) in the water column was also detected. The addition of the algae lead to an increase of SRB, a drastic decline of sulfate and a significant increase of total dissolved sulfide (ΣS2-, the peak value of near 3.0 mmol/L on day 6) in the water column. These results suggest the sulfate reduction was dramatically promoted during algae decomposition. Indeed the ΣS2- was 2 to 3 times of SO42- initial concentration, and higher ΣS2- was produced with higher algal biomass. Moreover, the diffusive flux of ΣS2- at the SWI was negative, indicating that diffusion of ΣS2- from water column toward sediment was occurring. These results indicated that algae decomposition might also be another important source of ΣS2- (termed "algae-derived ΣS2-") in addition to sulfate reduction. The increase of Fe(II) in surface sediment pore-water was slightly delayed compared to the ΣS2- generation in the water column, which illustrated that Fe oxyhydroxides in sediments were transformed into Fe(II) through chemical reduction of ΣS2-. Concomitantly, the vertical distribution of PO43- in high amounts algae group suggested that desorption and release of iron oxides-bound PO43- occurred in sediments. Collectively, algae bloom can boost the lake eutrophication not only through direct release of nutrients but also through the high production of ΣS2-and indirect promotion of phosphorus mobility in sediment.

Authors+Show Affiliations

Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China; Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, United States.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China. Electronic address: wangguoxiang@njnu.edu.cn.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, School of Environment, Nanjing Normal University, Nanjing 210023, China.Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30196216

Citation

Zhao, Yanping, et al. "High Sulfide Production Induced By Algae Decomposition and Its Potential Stimulation to Phosphorus Mobility in Sediment." The Science of the Total Environment, vol. 650, no. Pt 1, 2019, pp. 163-172.
Zhao Y, Zhang Z, Wang G, et al. High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment. Sci Total Environ. 2019;650(Pt 1):163-172.
Zhao, Y., Zhang, Z., Wang, G., Li, X., Ma, J., Chen, S., Deng, H., & Annalisa, O. H. (2019). High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment. The Science of the Total Environment, 650(Pt 1), 163-172. https://doi.org/10.1016/j.scitotenv.2018.09.010
Zhao Y, et al. High Sulfide Production Induced By Algae Decomposition and Its Potential Stimulation to Phosphorus Mobility in Sediment. Sci Total Environ. 2019 Feb 10;650(Pt 1):163-172. PubMed PMID: 30196216.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment. AU - Zhao,Yanping, AU - Zhang,Zhongqian, AU - Wang,Guoxiang, AU - Li,Xiaojun, AU - Ma,Jie, AU - Chen,Shuang, AU - Deng,Huan, AU - Annalisa,Onnis-Hayden, Y1 - 2018/09/03/ PY - 2018/07/16/received PY - 2018/08/29/revised PY - 2018/09/01/accepted PY - 2018/9/10/pubmed PY - 2018/11/21/medline PY - 2018/9/10/entrez KW - Algae decomposition KW - Eutrophication KW - Phosphorus mobility KW - Sulfide KW - Sulfur cycling SP - 163 EP - 172 JF - The Science of the total environment JO - Sci Total Environ VL - 650 IS - Pt 1 N2 - This study is devoted to addressing the effects of algae blooms on sulfur cycle and the consequent phosphorus mobility in the sediments of freshwater lake ecosystems. A mesocosm experiment was conducted to investigate these effects through monitoring the dynamics of sulfur (S), iron (Fe) and phosphorus (P) in water and sediments, and their diffusion fluxes at the sediment-water interface (SWI). In addition, the abundance of sulfate-reducing bacteria (SRB) in the water column was also detected. The addition of the algae lead to an increase of SRB, a drastic decline of sulfate and a significant increase of total dissolved sulfide (ΣS2-, the peak value of near 3.0 mmol/L on day 6) in the water column. These results suggest the sulfate reduction was dramatically promoted during algae decomposition. Indeed the ΣS2- was 2 to 3 times of SO42- initial concentration, and higher ΣS2- was produced with higher algal biomass. Moreover, the diffusive flux of ΣS2- at the SWI was negative, indicating that diffusion of ΣS2- from water column toward sediment was occurring. These results indicated that algae decomposition might also be another important source of ΣS2- (termed "algae-derived ΣS2-") in addition to sulfate reduction. The increase of Fe(II) in surface sediment pore-water was slightly delayed compared to the ΣS2- generation in the water column, which illustrated that Fe oxyhydroxides in sediments were transformed into Fe(II) through chemical reduction of ΣS2-. Concomitantly, the vertical distribution of PO43- in high amounts algae group suggested that desorption and release of iron oxides-bound PO43- occurred in sediments. Collectively, algae bloom can boost the lake eutrophication not only through direct release of nutrients but also through the high production of ΣS2-and indirect promotion of phosphorus mobility in sediment. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/30196216/High_sulfide_production_induced_by_algae_decomposition_and_its_potential_stimulation_to_phosphorus_mobility_in_sediment_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(18)33428-4 DB - PRIME DP - Unbound Medicine ER -