Abstract

F-GPP adjusted for the length of the carbon uptake period decreased at the sampling sites across functional types in the order C-4 crops, temperate and boreal deciduous forests (7.5-8.3 g C m(-2) per day) > temperate conifers, C-3 grassland and crops (5.7-6.9 g C m(-2) per day) > boreal conifers (4.6 g C m(-2) per day). Annual F-GPP and not ecosystem productivity (F-NEP) decreased across climate zones in the order tropical > temperate > boreal, However, the decrease in with latitude was greater than the decrease in F-GPP, indicating a larger contribution of respiratory (especially heterotrophic) processes in boreal systems. (C) 2002 Elsevier Science B.V. All rights reserved.

Keywords

season length; gross primary production; ecosystem respiration; FLUXNET; EUROFUX; AmeriFlux; eddy covariance

Published in

Agricultural and Forest Meteorology
2002, Volume: 113, number: 1-4, pages: 53-74
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Grelle, Achim

  • Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Climate Research


Publication identifier

DOI: https://doi.org/10.1016/S0168-1923(02)00102-8

Permanent link to this page (URI)

https://res.slu.se/id/publ/43554