Projected future climate change and Baltic Sea ecosystem management.

Projected future climate change and Baltic Sea ecosystem management.
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DOI:
10.1007/s13280-015-0654-8
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发表时间:
2015-06
期刊:
影响因子:
6.5
通讯作者:
Elmgren, Ragnar
Elmgren, Ragnar
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Andersson, Agneta;Meier, H. E. Markus;Ripszam, Matyas;Rowe, Owen;Wikner, Johan;Haglund, Peter;Eilola, Kari;Legrand, Catherine;Figueroa, Daniela;Paczkowska, Joanna;Lindehoff, Elin;Tysklind, Mats;Elmgren, Ragnar

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气候变化可能对波罗的海生态系统产生重大影响。模拟表明,到2100年,气温上升2-4 °C,冰盖减少50- 80%。北部的降水量可能增加~ 30%,导致外来有机物(AOM)和有机污染物的土地径流增加,盐度降低。耦合的物理-生态-地球化学模型表明,在南部,底层水缺氧可能会蔓延,减少鳕鱼的补充,增加沉积物磷的释放,从而促进蓝藻水华。在北方,异养细菌将受到AOM的青睐,而浮游植物的产量可能会减少。食物网中的额外营养水平可能会增加能量损失,从而减少鱼类产量。波罗的海的未来管理必须考虑气候变化对生态系统动态和功能的影响,以及人为营养物和污染物负荷的影响。监测应采取全面的办法,包括自养(浮游植物)和异养(例如,细菌)过程。本文的在线版本(doi:10.1007/s13280-015-0654-8)包含补充材料,可供授权用户使用。
Climate change is likely to have large effects on the Baltic Sea ecosystem. Simulations indicate 2–4 °C warming and 50–80 % decrease in ice cover by 2100. Precipitation may increase ~30 % in the north, causing increased land runoff of allochthonous organic matter (AOM) and organic pollutants and decreased salinity. Coupled physical–biogeochemical models indicate that, in the south, bottom-water anoxia may spread, reducing cod recruitment and increasing sediment phosphorus release, thus promoting cyanobacterial blooms. In the north, heterotrophic bacteria will be favored by AOM, while phytoplankton production may be reduced. Extra trophic levels in the food web may increase energy losses and consequently reduce fish production. Future management of the Baltic Sea must consider the effects of climate change on the ecosystem dynamics and functions, as well as the effects of anthropogenic nutrient and pollutant load. Monitoring should have a holistic approach, encompassing both autotrophic (phytoplankton) and heterotrophic (e.g., bacterial) processes. The online version of this article (doi:10.1007/s13280-015-0654-8) contains supplementary material, which is available to authorized users.
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