SwePub
Sök i LIBRIS databas

  Extended search

id:"swepub:oai:lup.lub.lu.se:646c7fc7-ebc2-40d0-81c6-49263aa8fbe2"
 

Search: id:"swepub:oai:lup.lub.lu.se:646c7fc7-ebc2-40d0-81c6-49263aa8fbe2" > Low historical nitr...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
  • Fleischer, K. (author)

Low historical nitrogen deposition effect on carbon sequestration in the boreal zone

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • 2015

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:646c7fc7-ebc2-40d0-81c6-49263aa8fbe2
  • https://lup.lub.lu.se/record/8731654URI
  • https://doi.org/10.1002/2015JG002988DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • Nitrogen (N) cycle dynamics and N deposition play an important role in determining the terrestrial biosphere's carbon (C) balance. We assess global and biome-specific N deposition effects on C sequestration rates with the dynamic global vegetation model LPJ-GUESS. Modeled CN interactions are evaluated by comparing predictions of the C and CN version of the model with direct observations of C fluxes from 68 forest FLUXNET sites. N limitation on C uptake reduced overestimation of gross primary productivity for boreal evergreen needleleaf forests from 56% to 18%, presenting the greatest improvement among forest types. Relative N deposition effects on C sequestration (dC/dN) in boreal, temperate, and tropical sites ranged from 17 to 26kgCkgN(-1) when modeled at site scale and were reduced to 12-22kgCkgN(-1) at global scale. We find that 19% of the recent (1990-2007) and 24% of the historical global C sink (1900-2006) was driven by N deposition effects. While boreal forests exhibit highest dC/dN, their N deposition-induced C sink was relatively low and is suspected to stay low in the future as no major changes in N deposition rates are expected in the boreal zone. N deposition induced a greater C sink in temperate and tropical forests, while predicted C fluxes and N-induced C sink response in tropical forests were associated with greatest uncertainties. Future work should be directed at improving the ability of LPJ-GUESS and other process-based ecosystem models to reproduce C cycle dynamics in the tropics, facilitated by more benchmarking data sets. Furthermore, efforts should aim to improve understanding and model representations of N availability (e.g., N fixation and organic N uptake), N limitation, P cycle dynamics, and effects of anthropogenic land use and land cover changes.

Subject headings and genre

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

  • Wårlind, DavidLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)da5584wa (author)
  • van der Molen, M. K. (author)
  • Rebel, K. T. (author)
  • Arneth, A. (author)
  • Erisman, J. W. (author)
  • Wassen, M. J. (author)
  • Smith, BenjaminLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)ple-bsm (author)
  • Gough, C. M. (author)
  • Margolis, H. A. (author)
  • Cescatti, A. (author)
  • Montagnani, L. (author)
  • Arain, A. (author)
  • Dolman, A. J. (author)
  • Institutionen för naturgeografi och ekosystemvetenskapNaturvetenskapliga fakulteten (creator_code:org_t)

Related titles

  • In:Journal of Geophysical Research - Biogeosciences120:12, s. 2542-25612169-8953

Internet link

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view