Journal
SCIENCE
Volume 356, Issue 6339, Pages 749-752Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aal3869
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Funding
- Ministry of Science and Technology of Taiwan (MOST) [105-2628-M-002-007-MY3]
- National Taiwan University [NTU-SINICA-105R104513, NTU-CESRP-105R7625, NTU-CDP-105R7719]
- Sustainability Science Research Program of the Academia Sinica
- Taiwan MOST [NSC 101-2611-M-001-003-MY3]
- U.S. NSF [1536368, 1537338]
- Grand Challenges Program of Princeton University
- Academia Sinica Distinguished Postdoctoral Fellowship
- Division Of Ocean Sciences
- Directorate For Geosciences [1536368, 1537338] Funding Source: National Science Foundation
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With the rapid rise in pollution-associated nitrogen inputs to the western Pacific, it has been suggested that even the open ocean has been affected. In a coral core from Dongsha Atoll, a remote coral reef ecosystem, we observe a decline in the N-15/N-14 of coral skeleton-bound organic matter, which signals increased deposition of anthropogenic atmospheric N on the open ocean and its incorporation into plankton and, in turn, the atoll corals. The first clear change occurred just before 2000 CE, decades later than predicted by other work. The amplitude of change suggests that, by 2010, anthropogenic atmospheric N deposition represented 20 +/- 5% of the annual N input to the surface ocean in this region, which appears to be at the lower end of other estimates.
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