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  • Holtgrieve, Gordon W. (author)

A Coherent Signature of Anthropogenic Nitrogen Deposition to Remote Watersheds of the Northern Hemisphere

  • Article/chapterEnglish2011

Publisher, publication year, extent ...

  • American Association for the Advancement of Science (AAAS),2011

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:e5fe3590-bcbe-4aba-a7df-a0255d1ecb76
  • https://lup.lub.lu.se/record/2279375URI
  • https://doi.org/10.1126/science.1212267DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Humans have more than doubled the amount of reactive nitrogen (Nr) added to the biosphere, yet most of what is known about its accumulation and ecological effects is derived from studies of heavily populated regions. Nitrogen (N) stable isotope ratios (N-15:N-14) in dated sediments from 25 remote Northern Hemisphere lakes show a coherent signal of an isotopically distinct source of N to ecosystems beginning in 1895 +/- 10 years (+/- 1 standard deviation). Initial shifts in N isotope composition recorded in lake sediments coincide with anthropogenic CO2 emissions but accelerate with widespread industrial Nr production during the past half century. Although current atmospheric Nr deposition rates in remote regions are relatively low, anthropogenic N has probably influenced watershed N budgets across the Northern Hemisphere for over a century.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Schindler, Daniel E. (author)
  • Hobbs, William O. (author)
  • Leavitt, Peter R. (author)
  • Ward, Eric J. (author)
  • Bunting, Lynda (author)
  • Chen, Guangjie (author)
  • Finney, Bruce P. (author)
  • Gregory-Eaves, Irene (author)
  • Holmgren, SofiaLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science(Swepub:lu)geol-sih (author)
  • Lisac, Mark J. (author)
  • Lisi, Peter J. (author)
  • Nydick, Koren (author)
  • Rogers, Lauren A. (author)
  • Saros, Jasmine E. (author)
  • Selbie, Daniel T. (author)
  • Shapley, Mark D. (author)
  • Walsh, Patrick B. (author)
  • Wolfe, Alexander P. (author)
  • KvartärgeologiGeologiska institutionen (creator_code:org_t)

Related titles

  • In:Science: American Association for the Advancement of Science (AAAS)334:6062, s. 1545-15481095-92030036-8075

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