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Biogeosciences An interactive open-access journal of the European Geosciences Union
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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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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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Final-revised paper
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