气候变化领域集成服务门户(CCPortal): Coral reefs will transition to net dissolving before end of century

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DOI	10.1126/science.aao1118
	Coral reefs will transition to net dissolving before end of century
	Eyre B.D.; Cyronak T.; Drupp P.; De Carlo E.H.; Sachs J.P.; Andersson A.J.
发表日期	2018
ISSN	0036-8075
起始页码	908
结束页码	911
卷号	359 期号:6378
英文摘要	Ocean acidification refers to the lowering of the ocean's pH due to the uptake of anthropogenic CO2 from the atmosphere. Coral reef calcification is expected to decrease as the oceans become more acidic. Dissolving calciumcarbonate (CaCO3) sands could greatly exacerbate reef loss associated with reduced calcification but is presently poorly constrained. Here we show that CaCO3 dissolution in reef sediments across five globally distributed sites is negatively correlated with the aragonite saturation state (Ωar) of overlying seawater and that CaCO3 sediment dissolution is 10-fold more sensitive to ocean acidification than coral calcification. Consequently, reef sediments globally will transition from net precipitation to net dissolution when seawater Ωar reaches 2.92 ± 0.16 (expected circa 2050 CE). Notably, some reefs are already experiencing net sediment dissolution. © 2018 The Authors, some rights reserved.
英文关键词	calcium carbonate; organic matter; sea water; acid; acidification; Article; benthos; calcification; chemical phenomena; controlled study; coral reef; decomposition; dissolution; net dissolving; net ecosystem calcification; phase transition; precipitation; priority journal; saturation state; sea; sediment; thermodynamics; animal; Anthozoa; bone mineralization; chemistry; growth, development and aging; pH; Anthozoa; Acids; Animals; Anthozoa; Calcification, Physiologic; Calcium Carbonate; Coral Reefs; Hydrogen-Ion Concentration; Seawater
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243639
作者单位	Centre for Coastal Biogeochemistry, School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia; Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA 92093-0244, United States; Department of Oceanography, University of Hawaii at Manoa, Honolulu, HI 96822, United States; School of Oceanography, University of Washington, Seattle, WA 98195, United States
推荐引用方式 GB/T 7714	Eyre B.D.,Cyronak T.,Drupp P.,et al. Coral reefs will transition to net dissolving before end of century[J],2018,359(6378).
APA	Eyre B.D.,Cyronak T.,Drupp P.,De Carlo E.H.,Sachs J.P.,&Andersson A.J..(2018).Coral reefs will transition to net dissolving before end of century.Science,359(6378).
MLA	Eyre B.D.,et al."Coral reefs will transition to net dissolving before end of century".Science 359.6378(2018).