No evidence of widespread algal bloom intensification in hundreds of lakes
No evidence of widespread algal bloom intensification in hundreds of lakes
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DOI：
10.1002/fee.2421
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发表时间：
2021-10
影响因子：
10.3
通讯作者：
G. Wilkinson;J. Walter;C. Buelo;M. Pace
中科院分区：
文献类型：
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作者：
G. Wilkinson;J. Walter;C. Buelo;M. Pace
藻类大量繁殖，即藻类生物量的迅速增殖，往往达到令人讨厌或有害的程度，减少了水生生态系统的服务。淡水水华可通过中断供水、限制娱乐和降低财产价值造成重大经济损失。据推测，富营养化和气候变化之间的相互作用促使内陆沃茨水华普遍加剧，尽管几乎没有经验证据表明这种趋势是普遍存在的。在这里，我们表明，在内陆水体水华加剧-定义为叶绿素的趋势-增加水华的规模，严重程度，或持续时间-并没有在美国数百个湖泊普遍。只有10.8%的323个水体分析有显着的水华加剧。相反，16.4%的水体在同一时期有明显的减少趋势。虽然水华加剧目前并不普遍，但令人鼓舞的是，为了维持未来的生态系统服务，必须继续努力保护和恢复水生生态系统。
Algal blooms, the rapid proliferation of algal biomass often to nuisance or harmful levels, diminish aquatic ecosystem services. Freshwater blooms can cause substantial economic damage by interrupting water supply, limiting recreation, and reducing property values. The interaction between eutrophication and climate change has been hypothesized to drive widespread intensification of blooms in inland waters, although there is little empirical evidence that this trend is pervasive. Here, we show that bloom intensification in inland waterbodies – defined as trends in chlorophyll‐aof increasing bloom magnitude, severity, or duration – has not been widespread for hundreds of lakes in the US. Only 10.8% of the 323 waterbodies analyzed had significant bloom intensification. Conversely, 16.4% of the waterbodies had significant decreasing trends during the same period. While it is encouraging that bloom intensification is not currently widespread, continued efforts toward aquatic ecosystem protection and restoration are imperative for maintaining ecosystem services into the future.