Nitrogen flows within different western European agrarian systems

Each letter indicates a different western European agrarian system and the nitrogen flows within it. It compares traditional methods, beginning from most primitive (a) to advanced/modern day methods (e). The paper discusses further on specific details of each farming system, but this graphic allows us to see the changes in complexity of farming practices as well as the extreme increases in Nitrogen fertilizers in modern day practices.

Further details

Source
The food-print of Paris: long-term reconstruction of the nitrogen flows imported into the city from its rural hinterland
Year
2009
Author(s)
Billen, Giles, and Barles, Sabine, and Garnier, Josette, and Rouillard, Josephine, and Benoit, Paul
More information
http://metabolismofcities.org/publication/410
Uploaded by
Rachel
Date
Oct 26, 2016

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