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Biological nitrogen fixation (BNF) plays an important role in the global nitrogen cycle. However, the fixation rate has usually been measured or estimated at a particular observational site. This study develops a BNF model considering the symbiotic relationship between legume plants and bacteria. The model is extensively calibrated with site-level observational data and then extrapolated to the global terrestrial ecosystems to quantify the fixation rate in the 1990s.
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BG | Articles | Volume 17, issue 13
Biogeosciences, 17, 3643–3657, 2020
https://doi.org/10.5194/bg-17-3643-2020
Biogeosciences, 17, 3643–3657, 2020
https://doi.org/10.5194/bg-17-3643-2020

Research article 13 Jul 2020

Research article | 13 Jul 2020

Modeling biological nitrogen fixation in global natural terrestrial ecosystems

Tong Yu and Qianlai Zhuang

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Cited articles

Adams, M. A. and Attiwill, P. M.: Role of Acacia spp. in nutrient balance and cycling in regenerating Eucalyptus regnans F. Muell. forests, I. Temporal changes in biomass and nutrient content, Aust. J. Bot., 32, 205–215, 1984. 
Alexander, V. and Billington, M. M.: Nitrogen fixation in the Alaskan taiga, Forest ecosystems in the Alaskan taiga, Springer, New York, NY, 112–120, 1986. 
Baker, T. G., Oliver, G. R., and Hodgkiss, P. D.: Distribution and cycling of nutrients in Pinus radiata as affected by past lupin growth and fertiliser, Forest Ecol. Manage., 17, 169–187, 1986. 
Barron, A. R., Purves, D. W., and Hedin, L. O.: Facultative nitrogen fixation by canopy legumes in a lowland tropical forest, Oecologia, 165, 511–520, 2011. 
Bate, G. C. and Gunton, C.: Nitrogen in the Burkea savanna, in: Ecology of Tropical Savannas, edited by: Huntley, B. J. and Walker, B. H., Springer-Verlag, New York, 498–513, 1982. 
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Short summary
Biological nitrogen fixation (BNF) plays an important role in the global nitrogen cycle. However, the fixation rate has usually been measured or estimated at a particular observational site. This study develops a BNF model considering the symbiotic relationship between legume plants and bacteria. The model is extensively calibrated with site-level observational data and then extrapolated to the global terrestrial ecosystems to quantify the fixation rate in the 1990s.
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