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Nitrogen deposition and carbon sequestration

Author

Listed:
  • Knute J. Nadelhoffer

    (The Marine Biological Laboratory)

  • Bridget A. Emmett

    (Institute of Terrestrial Ecology)

  • Per Gundersen

    (Danish Forest and Landscape Research Institute)

  • Chris J. Koopmans

    (Louis Bolk Institute)

  • Patrick Schleppi

    (Swiss Federal Institute for Forest, Snow and Landscape Research, WSL)

  • Albert Tietema

    (University of Amsterdam)

  • Richard F. Wright

    (Norwegian Institute for Water Research)

Abstract

Nadelhoffer et al. reply — Jenkinson et al. and Sievering are justifiably concerned that our 15N additions to forest floors do not account for the potential uptake of nitrogen input by forest canopies. We agree that canopies can remove nitrogen from the atmosphere, resulting in inputs to forest floors that are less than the total nitrogen deposition. A North American study1 has suggested that canopies remove, on average, 16% of total (organic+inorganic) atmospheric nitrogen input to forests, and concluded that nitrogen uptake by the canopy is probably small relative to the nitrogen requirements of trees. Spraying 15N-labelled ammonium and nitrate on the crowns of five-year-old Norway spruce indicated that foliar uptake in mature forests probably constitutes only a small percentage of annual nitrogen uptake2.

Suggested Citation

  • Knute J. Nadelhoffer & Bridget A. Emmett & Per Gundersen & Chris J. Koopmans & Patrick Schleppi & Albert Tietema & Richard F. Wright, 1999. "Nitrogen deposition and carbon sequestration," Nature, Nature, vol. 400(6745), pages 630-630, August.
    • Handle: RePEc:nat:nature:v:400:y:1999:i:6745:d:10.1038_23178
    DOI: 10.1038/23178
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    Cited by:

    1. Huang, Suo & Bartlett, Paul & Arain, M. Altaf, 2016. "An analysis of global terrestrial carbon, water and energy dynamics using the carbon–nitrogen coupled CLASS-CTEMN+ model," Ecological Modelling, Elsevier, vol. 336(C), pages 36-56.
    2. Huang, Suo & Arain, M. Altaf & Arora, Vivek K. & Yuan, Fengming & Brodeur, Jason & Peichl, Matthias, 2011. "Analysis of nitrogen controls on carbon and water exchanges in a conifer forest using the CLASS-CTEMN+ model," Ecological Modelling, Elsevier, vol. 222(20), pages 3743-3760.
    3. Zhang, Guilian & Boom, Carolina & Zhang, Guigang & Liu, Xinwei & Du, Qin & Peng, Shaolin, 2009. "Simulating dynamics of managed monsoon evergreen broad-leaved forest in south China," Ecological Modelling, Elsevier, vol. 220(18), pages 2218-2230.
    4. Huang, Suo & Bartlett, Paul & Arain, M. Altaf, 2016. "Assessing nitrogen controls on carbon, water and energy exchanges in major plant functional types across North America using a carbon and nitrogen coupled ecosystem model," Ecological Modelling, Elsevier, vol. 323(C), pages 12-27.

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