Publication Abstracts

Friedlingstein et al. 1995

Friedlingstein, P., I. Fung, E. Holland, J. John, G. Brasseur, D. Erickson, and D. Schimel, 1995: On the contribution of CO2 fertilization to the missing biospheric sink. Glob. Biogeochem. Cycles, 9, 541-566, doi:10.1029/95GB02381.

A gridded biospheric carbon model is used to investigate the impact of the atmospheric CO2 increase on terrestrial carbon storage. The analysis shows that the calculated CO2 fertilization sink is dependent not just on the mathematical; formulation of the "beta factor" but also on the relative controls of net primary productivity (NPP), carbon residence times, and resource availability. The modeled evolution of the biosphere for the period 1850-1990 shows an increasing lag between NPP and heterotrophic respiration. The time evolution of the modeled biospheric sink (i.e., difference between enhanced NPP and enhanced respiration) does not match that obtained by deconvolution of the ice core CO2 time series. Agreement between the two is reasonable for the first half of the period, but during the recent decades the deconvoluted CO2 increase is much too fast to be explained by the CO2 fertilization effect only. Therefore other mechanisms than CO2 fertilization should also contribute to the missing sink. Our results suggest that about two thirds to three quarters of the 1850-1990 integrated missing sink is due to the CO2 greening of the biosphere. The remainder may be due to the increased level of nitrogen deposition starting around 1950.

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BibTeX Citation

  author={Friedlingstein, P. and Fung, I. and Holland, E. and John, J. and Brasseur, G. and Erickson, D. and Schimel, D.},
  title={On the contribution of CO2 fertilization to the missing biospheric sink},
  journal={Glob. Biogeochem. Cycles},

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RIS Citation

ID  - fr01000b
AU  - Friedlingstein, P.
AU  - Fung, I.
AU  - Holland, E.
AU  - John, J.
AU  - Brasseur, G.
AU  - Erickson, D.
AU  - Schimel, D.
PY  - 1995
TI  - On the contribution of CO2 fertilization to the missing biospheric sink
JA  - Glob. Biogeochem. Cycles
VL  - 9
SP  - 541
EP  - 566
DO  - 10.1029/95GB02381
ER  -

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