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Article

Surface Sediment Diatom Assemblages Response to Water Environment in Dongping Lake, North China

by 1,2,3, 4, 5,* and 1,2,*
1
School of Architectural and Urban Planning, Chongqing University, Chongqing 400030, China
2
Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing 400030, China
3
Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400030, China
4
School of Environment and Planning, Liaocheng University, Liaocheng 252059, China
5
School of City and Environment, Jiangsu Normal University, Xuzhou 221116, China
*
Authors to whom correspondence should be addressed.
Water 2021, 13(3), 339; https://doi.org/10.3390/w13030339
Received: 7 January 2021 / Revised: 21 January 2021 / Accepted: 22 January 2021 / Published: 29 January 2021
(This article belongs to the Section Biodiversity and Functionality of Aquatic Ecosystems)
The relationship between the diatom taxa preserved in surface lake sediments and environmental variables in Dongping Lake was explored using multivariate statistical methods. The statistical analysis showed that the lake was eutrophicated in all seasons. Transparency, chlorophyll a (Chla) and total phosphorus (TP) were the dominant environmental factors in spring and summer, and NH4+-N and chemical oxygen demand (COD) were the dominant environmental factors in autumn and winter. Sixteen genera and 43 species of diatom were found in the surface sediments, and the dominant diatom genera were Aulacoseira, Ulnaria, Cyclotella, Navicula and Fragilaria. A redundancy analysis (RDA) and Monte Carlo permutation 20 test revealed that COD, pH, TP, conductivity and transparency were significant factors influencing diatom assemblage change, meaning that the distribution of the diatom assemblages were mostly influenced by nutrient composition, light intensity and ion concentrations. View Full-Text
Keywords: Dongping Lake; water environment; surface sediment; limnology; diatom; redundancy analysis Dongping Lake; water environment; surface sediment; limnology; diatom; redundancy analysis
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MDPI and ACS Style

Liu, S.; Yao, M.; Chen, S.; Yuan, X. Surface Sediment Diatom Assemblages Response to Water Environment in Dongping Lake, North China. Water 2021, 13, 339. https://doi.org/10.3390/w13030339

AMA Style

Liu S, Yao M, Chen S, Yuan X. Surface Sediment Diatom Assemblages Response to Water Environment in Dongping Lake, North China. Water. 2021; 13(3):339. https://doi.org/10.3390/w13030339

Chicago/Turabian Style

Liu, Shuangshuang, Min Yao, Shiyue Chen, and Xingzhong Yuan. 2021. "Surface Sediment Diatom Assemblages Response to Water Environment in Dongping Lake, North China" Water 13, no. 3: 339. https://doi.org/10.3390/w13030339

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