Wildfires enhance phytoplankton production in tropical oceans

被引：35

作者：

Liu, Dongyan ^{[1
]}

Zhou, Chongran ^{[1
]}

Keesing, John K. ^{[2
,3
]}

Serrano, Oscar ^{[4
,5
,6
]}

Werner, Axel ^{[4
,5
]}

Fang, Yin ^{[7
]}

Chen, Yingjun ^{[8
]}

Masque, Pere ^{[4
,5
,9
,10
,11
]}

Kinloch, Janine ^{[12
]}

Sadekov, Aleksey ^{[13
]}

Du, Yan ^{[14
]}

机构：

[1] East China Normal Univ, Inst Ecochongming, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China

[2] CSIRO Oceans & Atmosphere Res, Crawley, WA, Australia

[3] Univ Western Australia, Oceans Inst, Indian Ocean Marine Res Ctr, Crawley, WA, Australia

[4] Edith Cowan Univ, Sch Sci, Joondalup, WA, Australia

[5] Edith Cowan Univ, Ctr Marine Ecosyst Res, Joondalup, WA, Australia

[6] CSIC, Ctr Estudios Avanzados Blanes, Blanes, Spain

[7] Shanghai Ocean Univ, Coll Marine Ecol & Environm, Shanghai 201306, Peoples R China

[8] Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200438, Peoples R China

[9] Univ Autonoma Barcelona, Dept Fis, Bellaterra, Spain

[10] Univ Autonoma Barcelona, Inst Ciencia & Tecnol Ambientals, Bellaterra, Spain

[11] IAEA, 4a Quai Antoine 1er, MC-98000 Principality Of Monaco, Monaco

[12] Dept Biodivers Conservat & Attract, Biodivers & Conservat Sci, Bentley Delivery Ctr, Bentley, WA, Australia

[13] Univ Western Australia, Ocean Grad Sch, ARC Ctr Excellence Coral Reef Studies, Crawley, WA 6009, Australia

[14] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China

来源：

NATURE COMMUNICATIONS | 2022年 / 13卷 / 01期

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

IMPACT; DISSOLUTION; SILICA; SOILS; SOOT; CHAR;

D O I：

10.1038/s41467-022-29013-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Wildfire magnitude and frequency have greatly escalated on a global scale. Wildfire products rich in biogenic elements can enter the ocean through atmospheric and river inputs, but their contribution to marine phytoplankton production is poorly understood. Here, using geochemical paleo-reconstructions, a century-long relationship between wildfire magnitude and marine phytoplankton production is established in a fire-prone region of Kimberley coast, Australia. A positive correlation is identified between wildfire and phytoplankton production on a decadal scale. The importance of wildfire on marine phytoplankton production is statistically higher than that of tropical cyclones and rainfall, when strong El Nino Southern Oscillation coincides with the positive phase of Indian Ocean Dipole. Interdecadal chlorophyll-a variation along the Kimberley coast validates the spatial connection of this phenomenon. Findings from this study suggest that the role of additional nutrients from wildfires has to be considered when projecting impacts of global warming on marine phytoplankton production. Wildfires are expected to increase in frequency and severity. Here the authors use geochemical paleo-reconstructions to show that over decadal timescales in Earth history wildfires are positively correlated with phytoplankton production off the coast of Australia.

引用

页数：9

共 48 条

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