Articles | Volume 9, issue 1
Earth Syst. Sci. Data, 9, 149–162, 2017
https://doi.org/10.5194/essd-9-149-2017
Earth Syst. Sci. Data, 9, 149–162, 2017
https://doi.org/10.5194/essd-9-149-2017

  20 Feb 2017

20 Feb 2017

Reconstruction of spatially detailed global map of NH4+ and NO3 application in synthetic nitrogen fertilizer

Kazuya Nishina et al.

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Short summary
Available historical global N fertilizer map as an input data to global biogeochemical model is still limited and existing maps were not considered NH4+ and NO3 in the fertilizer application rates. In our products, by utilizing national fertilizer species consumption data in FAOSTAT database, we succeeded to estimate the ratio of NH4+ to NO3 in the N fertilizer map. The products could be widely utilized for global N cycling studies.