Nitrogen Cycle: 21st-century rise in anthropogenic nitrogen deposition on a remote coral reef

Haojia Ren, Yi Chi Chen, Xingchen T. Wang, George T.F. Wong, Anne L. Cohen, Thomas M. DeCarlo, Mira A. Weigand, Horng Sheng Mii, Daniel M. Sigman

研究成果: 雜誌貢獻文章

30 引文 斯高帕斯(Scopus)

摘要

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 15N/14N 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.

原文英語
頁(從 - 到)749-752
頁數4
期刊Science
356
發行號6339
DOIs
出版狀態已發佈 - 2017 五月 19

    指紋

ASJC Scopus subject areas

  • General

引用此

Ren, H., Chen, Y. C., Wang, X. T., Wong, G. T. F., Cohen, A. L., DeCarlo, T. M., Weigand, M. A., Mii, H. S., & Sigman, D. M. (2017). Nitrogen Cycle: 21st-century rise in anthropogenic nitrogen deposition on a remote coral reef. Science, 356(6339), 749-752. https://doi.org/10.1126/science.aal3869