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Article

Mesocosm Experiments Reveal Global Warming Accelerates Macrophytes Litter Decomposition and Alters Decomposition-Related Bacteria Community Structure

by 1, 2, 1, 1, 2,* and 1,*
1
Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
2
Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Valeria Lencioni and Dean Jacobsen
Water 2021, 13(14), 1940; https://doi.org/10.3390/w13141940
Received: 31 May 2021 / Revised: 2 July 2021 / Accepted: 8 July 2021 / Published: 14 July 2021
(This article belongs to the Special Issue Effects of Climate and Environmental Change on Freshwater Ecosystems)
Global climate change scenarios predict that lake water temperatures will increase up to 4 °C and extreme weather events, such as heat waves and large temperature fluctuations, will occur more frequently. Such changes may result in the increase of aquatic litter decomposition and on shifts in diversity and structure of bacteria communities in this period. We designed a two-month mesocosm experiment to explore how constant (+4 °C than ambient temperature) and variable (randomly +0~8 °C than ambient temperature) warming treatment will affect the submerged macrophyte litter decomposition process. Our data suggests that warming treatments may accelerate the decomposition of submerged macrophyte litter in shallow lake ecosystems, and increase the diversity of decomposition-related bacteria with community composition changed the relative abundance of Proteobacteria, especially members of Alphaproteobacteria increased while that of Firmicutes (mainly Bacillus) decreased. View Full-Text
Keywords: climate change; heat wave; litterbags; mesocosm; Potamogeton crispus L. climate change; heat wave; litterbags; mesocosm; Potamogeton crispus L.
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MDPI and ACS Style

Pan, M.; Wang, T.; Hu, B.; Shi, P.; Xu, J.; Zhang, M. Mesocosm Experiments Reveal Global Warming Accelerates Macrophytes Litter Decomposition and Alters Decomposition-Related Bacteria Community Structure. Water 2021, 13, 1940. https://doi.org/10.3390/w13141940

AMA Style

Pan M, Wang T, Hu B, Shi P, Xu J, Zhang M. Mesocosm Experiments Reveal Global Warming Accelerates Macrophytes Litter Decomposition and Alters Decomposition-Related Bacteria Community Structure. Water. 2021; 13(14):1940. https://doi.org/10.3390/w13141940

Chicago/Turabian Style

Pan, Meng, Tao Wang, Bowen Hu, Penglan Shi, Jun Xu, and Min Zhang. 2021. "Mesocosm Experiments Reveal Global Warming Accelerates Macrophytes Litter Decomposition and Alters Decomposition-Related Bacteria Community Structure" Water 13, no. 14: 1940. https://doi.org/10.3390/w13141940

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