Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR029371 |
Extreme Climate Anomalies Enhancing Cyanobacterial Blooms in Eutrophic Lake Taihu, China | |
Boqiang Qin; Jianming Deng; Kun Shi; Jia Wang; Justin Brookes; Jian Zhou; Yunlin Zhang; Guangwei Zhu; Hans W Paerl; Li Wu | |
2021-07-08 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Climate warming in combination with nutrient enrichment can greatly promote phytoplankton proliferation and blooms in eutrophic waters. Lake Taihu, China, is a large, shallow and eutrophic system. Since 2007, this lake has experienced extensive nutrient input reductions aimed at controling cyanobacterial blooms. However, intense cyanobacterial blooms have persisted through 2017 with a record-setting bloom occurring in May, 2017. Causal analysis suggested that this bloom was sygenerically driven by high external loading from flooding in 2016 in the Taihu catchment and a notable warmer winter during 2016/2017. High precipitation during 2016 was associated with a strong 2015/2016 El Niño in combination with the joint effects of Atlantic Multi-decadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO), whilst persistent warmth during 2016/2017 was strongly related to warm phases of AMO and PDO. The 2017 blooms elevated water column pH and led to dissolved oxygen depletion near the sediment, both of which mobilized phosphorus from the sediment to overlying water, further promoting cyanobacterial blooms. Our finding indicates that regional climate anomalies exacerbated eutrophication via a positive feedback mechanism, by intensifying internal nutrient cycling and aggravating cyanobacterial blooms. In light of global expansion of eutrophication and blooms, especially in large, shallow and eutrophic lakes, these regional effects of climate anomalies are nested within larger scale global warming predicted to continue in the foreseeable future. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333758 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Boqiang Qin,Jianming Deng,Kun Shi,et al. Extreme Climate Anomalies Enhancing Cyanobacterial Blooms in Eutrophic Lake Taihu, China[J]. Water Resources Research,2021. |
APA | Boqiang Qin.,Jianming Deng.,Kun Shi.,Jia Wang.,Justin Brookes.,...&Li Wu.(2021).Extreme Climate Anomalies Enhancing Cyanobacterial Blooms in Eutrophic Lake Taihu, China.Water Resources Research. |
MLA | Boqiang Qin,et al."Extreme Climate Anomalies Enhancing Cyanobacterial Blooms in Eutrophic Lake Taihu, China".Water Resources Research (2021). |
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