永定河怀来段冬季表层沉积物细菌群落特征及其主要影响因子

赵建国; 翟学正; 郭祥; 王叶姣; 王江华; 周紫梦; 姜甜甜

doi:10.12153/j.issn.1674-991X.2019.03.250

永定河怀来段冬季表层沉积物细菌群落特征及其主要影响因子

doi: 10.12153/j.issn.1674-991X.2019.03.250

1.
河北省环境科学研究院绿色发展研究所,河北石家庄 050011
2.
河北省环境科学研究院水环境科学研究所,河北石家庄 050011
3.
河北省环境科学研究院大气环境科学研究所,河北石家庄 050011
4.
保定市环境保护研究所,河北保定 071030
5.
河北农业大学现代科技学院,河北保定 071000

详细信息

作者简介:
赵建国(1991—),男,助理工程师,硕士,主要从事水环境修复研究, 807078293@qq.com

通讯作者:
姜甜甜 E-mail: 506482219@qq.com

中图分类号: X522
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出版历程
- 收稿日期: 2018-10-21
- 刊出日期: 2019-09-20

Bacterial community characteristics and key driving factors of surface sediments in Huailai section of Yongding River in winter

1.
Green Development Institute, Hebei Academy of Environmental Sciences, Shijiazhuang 050011, China
2.
Institute of Water Environment Science, Hebei Academy of Environmental Sciences, Shijiazhuang 050011, China
3.
Institute of Atmospheric Environment Science, Hebei Academy of Environmental Sciences, Shijiazhuang 050011, China
4.
Baoding Institute of Environmental Protection, Baoding 071030, China
5.
Modern Science and Technology College, Agricultural University of Hebei, Baoding 071000, China

More Information

Corresponding author: Tiantian JIANG E-mail: 506482219@qq.com

摘要

摘要: 对永定河怀来段冬季表层沉积物及上覆水水质指标进行分析,通过高通量测序技术研究沉积物细菌群落结构及多样性,并对沉积物细菌群落结构与环境因子进行相关性分析。结果表明:永定河怀来段冬季表层沉积物OTUs数量平均为7 357;表层沉积物门水平的细菌优势种群包括变形菌门(Proteobacteria)、拟杆菌门(Bacteroidetes)、绿弯菌门(Chloroflexi)和厚壁菌门(Firmicutes)等,表层沉积物属水平细菌优势种群并不明显;沉积物细菌Shannon指数为8.135~10.647,ACE指数为6 060.643~7 182.679,Chao1指数为5 553.562~6 967.912,香蒲湿地沉积物中细菌的种类最为丰富,支流冰封水体表层沉积物中细菌种类较少;沉积物有机磷(OP)与氨氮($NH^{+}_{4}$-N)浓度,上覆水总磷(TP)与亚硝氮($NO^{-}_{2}$-N)浓度是沉积物中细菌丰度的主要影响因子,沉积物中细菌丰度与沉积物OP、$NH^{+}_{4}$-N浓度呈负相关,与上覆水TP、$NO^{-}_{2}$-N浓度呈正相关。
- 永定河流域 /
- 表层沉积物 /
- 细菌群落结构 /
- 高通量测序
Abstract: The water quality indexes of surface sediments and overlying water in Huailai section of the Yongding River in winter were analyzed, the characteristics and diversity of bacterial community in sediments were studied by high-throughput sequencing technology, and the correlation between bacterial species in main sediments and relevant environmental factors was analyzed. The results showed that the average amount of OTUs of surface sediments in Huailai section of the Yongding River in winter was 7 357, the dominant bacterial species in surface sediment phylum level were Proteobacteria, Bacteroidetes, Chloroflexi and Firmicutes etc., and the dominant species in bacterial genus level were not obvious. The Shannon index of sediment bacteria ranged from 8.135 to 10.647, ACE index ranged from 6 060.643 to 7 182.679, Chao1 index ranged from 5 553.562 to 6 967.912, the bacterial species were the most abundant in cattail wetland sediments, while the bacterial species were less in the tributary surface sediments under ice-sealed water body. Organic phosphorus (OP) and $NH^{+}_{4}$-N concentration of surface sediment, TP and $NO^{-}_{2}$-N concentration of overlying water were the main driving factors of bacteria relatively abundance of surface sediments in winter in Huailai section of the Yongding River. Among them, sediment bacteria abundance were negatively correlated with sediment OP and $NH^{+}_{4}$-N concentration, and positively correlated with overlying water TP and $NO^{-}_{2}$-N concentration.
- Yongding River Basin /
- surface sediment /
- bacterial community structure /
- high-throughput sequencing

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