SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:lup.lub.lu.se:eb6bedf0-a995-4106-b671-c346f190f985"
 

Search: onr:"swepub:oai:lup.lub.lu.se:eb6bedf0-a995-4106-b671-c346f190f985" > Precipitation as dr...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
  • Merbold, L. (author)

Precipitation as driver of carbon fluxes in 11 African ecosystems

  • Article/chapterEnglish2009

Publisher, publication year, extent ...

  • 2009

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:eb6bedf0-a995-4106-b671-c346f190f985
  • https://lup.lub.lu.se/record/1463439URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • This study reports carbon and water fluxes between the land surface and atmosphere in eleven different ecosystems types in Sub-Saharan Africa, as measured using eddy covariance (EC) technology in the first two years of the CarboAfrica network operation. The ecosystems for which data were available ranged in mean annual rainfall from 320 mm (Sudan) to 1150 mm (Republic of Congo) and include a spectrum of vegetation types (or land cover) (open savannas, woodlands, croplands and grasslands). Given the shortness of the record, the EC data were analysed across the network rather than longitudinally at sites, in order to understand the driving factors for ecosystem respiration and carbon assimilation, and to reveal the different water use strategies in these highly seasonal environments. Values for maximum net carbon assimilation rates (photosynthesis) ranged from -12.5 mu mol CO2 m(-2) s(-1) in a dry, open Millet cropland (C-4-plants) up to -48 mu mol CO2 m(-2) s(-1) for a tropical moist grassland. Maximum carbon assimilation rates were highly correlated with mean annual rainfall (r(2)=0.74). Maximum photosynthetic uptake rates (Fp(max)) were positively related to satellite-derived f(APAR). Ecosystem respiration was dependent on temperature at all sites, and was additionally dependent on soil water content at sites receiving less than 1000 mm of rain per year. All included ecosystems dominated by C-3-plants, showed a strong decrease in 30-min assimilation rates with increasing water vapour pressure deficit above 2.0 kPa.

Subject headings and genre

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

  • Ardö, JonasLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)natg-jar (author)
  • Arneth, AlmutLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)nate-aar (author)
  • Scholes, R. J. (author)
  • Nouvellon, Y. (author)
  • de Grandcourt, A. (author)
  • Archibald, S. (author)
  • Bonnefond, J. M. (author)
  • Boulain, N. (author)
  • Brueggemann, N. (author)
  • Bruemmer, C. (author)
  • Cappelaere, B. (author)
  • Ceschia, E. (author)
  • El-Khidir, H. A. M. (author)
  • El-Tahir, B. A. (author)
  • Falk, U. (author)
  • Lloyd, J. (author)
  • Kergoat, L. (author)
  • Le Dantec, V. (author)
  • Mougin, E. (author)
  • Muchinda, M. (author)
  • Mukelabai, M. M. (author)
  • Ramier, D. (author)
  • Roupsard, O. (author)
  • Timouk, F. (author)
  • Veenendaal, E. M. (author)
  • Kutsch, W. L. (author)
  • Institutionen för naturgeografi och ekosystemvetenskapNaturvetenskapliga fakulteten (creator_code:org_t)

Related titles

  • In:Biogeosciences6:6, s. 1027-10411726-4189

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