Spatio-Temporal Variations in Phytoplankton Communities in Sediment and Surface Water as Reservoir Drawdown-A Case Study of Pengxi River in Three Gorges Reservoir, China
文献类型：期刊论文
| 作者 | Ouyang, Wenjuan1,3 ; Li, Zhe1; Yang, Jixiang1; Lu, Lunhui1; Guo, Jinsong2
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| 刊名 | WATER
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 13期号:3页码:15 |
| 关键词 | phytoplankton community reservoir drawdown algal blooms seed bank hydrodynamic condition Three Gorges Reservoir |
| DOI | 10.3390/w13030340 |
| 通讯作者 | Guo, Jinsong(jsguo_submit@163.com) |
| 英文摘要 | The resting stages of phytoplankton are usually regarded as the seed bank and source of harmful algal blooms because of the recruitment of phytoplankton from sediment to the water column under suitable environmental conditions. Information about resting stages of phytoplankton is abundant in shallow lakes and littoral sea; yet, studies on river-reservoir systems are rare. The river-reservoir continuum shows a unique structuring of longitudinal gradients of hydrological and hydrodynamic conditions. We hypothesized that the seed bank and algal blooms in reservoirs are influenced by the hydrodynamic conditions of each reservoir. We used Illumina Miseq sequencing to examine the spatio-temporal variation in the phytoplankton community in the sediment as reservoir drawdown and in surface water during algal blooms in Pengxi River, a tributary of China's Three Gorges Reservoir. The results show that the cyanobacteria community in sediment is significantly influenced by temperature, total carbon, maximum flow velocity, and total phosphorous, the eukaryotic phytoplankton community in sediment is significantly influenced by total phosphorous, temperature, total carbon, maximum flow velocity, and total nitrogen. Additionally, the dominant species in sediment is significantly different from that in surface water during algal blooms. Our results suggest that the dominant species in surface water during algal blooms is more influenced by the environmental factors and hydrodynamic conditions in the water column than the seeds in the sediment. These findings are fundamental for further research on the influence of hydrodynamic conditions on algal blooms in artificially regulated river-reservoir systems. |
| 资助项目 | National Natural Science Foundation of China[41771520] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000615632900001 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/12793]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Guo, Jinsong |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China 2.Chongqing Univ, Minist Educ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Chongqing 400045, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, Wenjuan,Li, Zhe,Yang, Jixiang,et al. Spatio-Temporal Variations in Phytoplankton Communities in Sediment and Surface Water as Reservoir Drawdown-A Case Study of Pengxi River in Three Gorges Reservoir, China[J]. WATER,2021,13(3):15. |
| APA | Ouyang, Wenjuan,Li, Zhe,Yang, Jixiang,Lu, Lunhui,&Guo, Jinsong.(2021).Spatio-Temporal Variations in Phytoplankton Communities in Sediment and Surface Water as Reservoir Drawdown-A Case Study of Pengxi River in Three Gorges Reservoir, China.WATER,13(3),15. |
| MLA | Ouyang, Wenjuan,et al."Spatio-Temporal Variations in Phytoplankton Communities in Sediment and Surface Water as Reservoir Drawdown-A Case Study of Pengxi River in Three Gorges Reservoir, China".WATER 13.3(2021):15. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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