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Temperature and cyanobacterial bloom biomass influence phosphorous cycling in eutrophic lake sediments.
PLoS One. 2014; 9(3):e93130.Plos

Abstract

Cyanobacterial blooms frequently occur in freshwater lakes, subsequently, substantial amounts of decaying cyanobacterial bloom biomass (CBB) settles onto the lake sediments where anaerobic mineralization reactions prevail. Coupled Fe/S cycling processes can influence the mobilization of phosphorus (P) in sediments, with high releases often resulting in eutrophication. To better understand eutrophication in Lake Taihu (PRC), we investigated the effects of CBB and temperature on phosphorus cycling in lake sediments. Results indicated that added CBB not only enhanced sedimentary iron reduction, but also resulted in a change from net sulfur oxidation to sulfate reduction, which jointly resulted in a spike of soluble Fe(II) and the formation of FeS/FeS2. Phosphate release was also enhanced with CBB amendment along with increases in reduced sulfur. Further release of phosphate was associated with increases in incubation temperature. In addition, CBB amendment resulted in a shift in P from the Fe-adsorbed P and the relatively unreactive Residual-P pools to the more reactive Al-adsorbed P, Ca-bound P and organic-P pools. Phosphorus cycling rates increased on addition of CBB and were higher at elevated temperatures, resulting in increased phosphorus release from sediments. These findings suggest that settling of CBB into sediments will likely increase the extent of eutrophication in aquatic environments and these processes will be magnified at higher temperatures.

Authors+Show Affiliations

State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Graduate University of Chinese Academy of Sciences, Beijing, China.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China.Department of Microbiology and Plant Biology, University of Oklahoma, Norman, Oklahoma, United States of America.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24682039

Citation

Chen, Mo, et al. "Temperature and Cyanobacterial Bloom Biomass Influence Phosphorous Cycling in Eutrophic Lake Sediments." PloS One, vol. 9, no. 3, 2014, pp. e93130.
Chen M, Ye TR, Krumholz LR, et al. Temperature and cyanobacterial bloom biomass influence phosphorous cycling in eutrophic lake sediments. PLoS One. 2014;9(3):e93130.
Chen, M., Ye, T. R., Krumholz, L. R., & Jiang, H. L. (2014). Temperature and cyanobacterial bloom biomass influence phosphorous cycling in eutrophic lake sediments. PloS One, 9(3), e93130. https://doi.org/10.1371/journal.pone.0093130
Chen M, et al. Temperature and Cyanobacterial Bloom Biomass Influence Phosphorous Cycling in Eutrophic Lake Sediments. PLoS One. 2014;9(3):e93130. PubMed PMID: 24682039.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Temperature and cyanobacterial bloom biomass influence phosphorous cycling in eutrophic lake sediments. AU - Chen,Mo, AU - Ye,Tian-Ran, AU - Krumholz,Lee R, AU - Jiang,He-Long, Y1 - 2014/03/28/ PY - 2013/10/30/received PY - 2014/02/28/accepted PY - 2014/4/1/entrez PY - 2014/4/1/pubmed PY - 2015/6/2/medline SP - e93130 EP - e93130 JF - PloS one JO - PLoS One VL - 9 IS - 3 N2 - Cyanobacterial blooms frequently occur in freshwater lakes, subsequently, substantial amounts of decaying cyanobacterial bloom biomass (CBB) settles onto the lake sediments where anaerobic mineralization reactions prevail. Coupled Fe/S cycling processes can influence the mobilization of phosphorus (P) in sediments, with high releases often resulting in eutrophication. To better understand eutrophication in Lake Taihu (PRC), we investigated the effects of CBB and temperature on phosphorus cycling in lake sediments. Results indicated that added CBB not only enhanced sedimentary iron reduction, but also resulted in a change from net sulfur oxidation to sulfate reduction, which jointly resulted in a spike of soluble Fe(II) and the formation of FeS/FeS2. Phosphate release was also enhanced with CBB amendment along with increases in reduced sulfur. Further release of phosphate was associated with increases in incubation temperature. In addition, CBB amendment resulted in a shift in P from the Fe-adsorbed P and the relatively unreactive Residual-P pools to the more reactive Al-adsorbed P, Ca-bound P and organic-P pools. Phosphorus cycling rates increased on addition of CBB and were higher at elevated temperatures, resulting in increased phosphorus release from sediments. These findings suggest that settling of CBB into sediments will likely increase the extent of eutrophication in aquatic environments and these processes will be magnified at higher temperatures. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/24682039/Temperature_and_cyanobacterial_bloom_biomass_influence_phosphorous_cycling_in_eutrophic_lake_sediments_ L2 - https://dx.plos.org/10.1371/journal.pone.0093130 DB - PRIME DP - Unbound Medicine ER -