Feedbacks between phytoplankton and global changes in a riverine source-mainstem-estuary continuum
文献类型：期刊论文
| 作者 | Jia, Junjie1,2; Gao, Yang1,2; Wang, Shuoyue1,2; Wu, Fan1,2; Lu, Yao1,2; Ha, Xianrui1,2 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2025 |
| 卷号 | 268页码:122746 |
| 关键词 | Phytoplankton community structure Biodiversity Functional group Eutrophication Harmful algal bloom Yangtze River |
| DOI | 10.1016/j.watres.2024.122746 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Global changes have led to alterations in phytoplankton community structure and dynamics in aquatic environments. However, limited information is available on the comprehensive impacts of global changes on phytoplankton communities along river systems affected by anthropogenic activities. This study explores how anthropogenic pressures and climate change affect phytoplankton community transitions and induce harmful algal blooms by employing field surveys and a 40-year historical data analysis along China's Yangtze River source-mainstem-estuary continuum. Results revealed significantly higher phytoplankton density and biodiversity in the mainstem compared to the source and estuary zones. From the river's source to its mainstem and estuary, the dominant phytoplankton community formed a transition pattern (diatoms - chlorophytes - cyanobacteria - diatoms). Similarly, phytoplankton functional groups transitioned from mixed to eutrophic groups, signaling a shift in water quality towards moderate eutrophication, although it has not yet threatened the survival of diverse phytoplankton species. Moreover, compared to climate change, anthropogenic activities have more significantly intensified the urban heat island effect and nutrient inputs, thereby promoting phytoplankton cell density and biodiversity, particularly in the case of eutrophic functional groups. However, since 2003, governmental regulations have slowed the increase in nitrogen and phosphorus transport flux from the source the estuary, contributing to the stabilization of harmful algal blooms at low levels in the estuary and adjacent waters. Strict control of nitrogen-to-phosphorus ratios is essential for preserving biodiversity, mitigating eutrophication, and preventing harmful algal blooms, thereby ensuring ecological balance and protecting water environments along the Yangtze River. |
| WOS关键词 | HARMFUL ALGAL BLOOMS ; CHANGJIANG YANGTZE-RIVER ; ENVIRONMENTAL-FACTORS ; FRESH-WATER ; EUTROPHICATION ; COMMUNITY ; CYANOBACTERIA ; RESPONSES ; RESERVOIR ; ADJACENT |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS记录号 | WOS:001357584100001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/210461]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Gao, Yang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Junjie,Gao, Yang,Wang, Shuoyue,et al. Feedbacks between phytoplankton and global changes in a riverine source-mainstem-estuary continuum[J]. WATER RESEARCH,2025,268:122746. |
| APA | Jia, Junjie,Gao, Yang,Wang, Shuoyue,Wu, Fan,Lu, Yao,&Ha, Xianrui.(2025).Feedbacks between phytoplankton and global changes in a riverine source-mainstem-estuary continuum.WATER RESEARCH,268,122746. |
| MLA | Jia, Junjie,et al."Feedbacks between phytoplankton and global changes in a riverine source-mainstem-estuary continuum".WATER RESEARCH 268(2025):122746. |
入库方式： OAI收割
来源：地理科学与资源研究所
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