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Cited by 1,044

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Exploring global changes in nitrogen and phosphorus cycles in agriculture induced by livestock production over the 1900–2050 period

Open access
Bouwman, Lex, Goldewijk, Kees Klein, Van Der Hoek, Klaas W., Beusen, Arthur H. W., Van Vuuren, Detlef P., Willems, Jaap, Rufino, Mariana C., Stehfest, Elke·2013·Proceedings of the National Academy of Sciences

Abstract

Crop-livestock production systems are the largest cause of human alteration of the global nitrogen (N) and phosphorus (P) cycles. Our comprehensive spatially explicit inventory of N and P budgets in livestock and crop production systems shows that in the beginning of the 20th century, nutrient budgets were either balanced or surpluses were small; between 1900 and 1950, global soil N surplus almost doubled to 36 trillion grams (Tg)·y−1 and P surplus increased by a factor of 8 to 2 Tg·y−1. Between 1950 and 2000, the global surplus increased to 138 Tg·y−1 of N and 11 Tg·y−1 of P. Most surplus N is an environmental loss; surplus P is lost by runoff or accumulates as residual soil P. The International Assessment of Agricultural Knowledge, Science, and Technology for Development scenario portrays a world with a further increasing global crop (+82% for 2000–2050) and livestock production (+115%); despite rapidly increasing recovery in crop (+35% N recovery and +6% P recovery) and livestock (+35% N and P recovery) production, global nutrient surpluses continue to increase (+23% N and +54% P), and in this period, surpluses also increase in Africa (+49% N and +236% P) and Latin America (+75% N and +120% P). Alternative management of livestock production systems shows that combinations of intensification, better integration of animal manure in crop production, and matching N and P supply to livestock requirements can effectively reduce nutrient flows. A shift in human diets, with poultry or pork replacing beef, can reduce nutrient flows in countries with intensive ruminant production.

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Crossref · 10.1073/pnas.1012878108

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Metadata

Authors
Bouwman, L., Goldewijk, K. K., Van Der Hoek, K. W., Beusen, A. H. W., Van Vuuren, D. P., Willems, J., Rufino, M. C., & Stehfest, E.
Venue
Proceedings of the National Academy of Sciences
Published
2011-05-16
Volume
110
Issue
52
Pages
20882-20887
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2055654927
Cited by
1,044
References
1
FWCI
23.39
Type
journal article
Language
en
Open access
green

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