Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Global Opportunities to Increase Agricultural Independence Through Phosphorus Recycling
Washington State Univ, WA 99164 USA.
Deakin Univ, Australia.
McGill Univ, Canada.
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Biology. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-8081-2126
Show others and affiliations
2019 (English)In: Earth's Future, ISSN 1384-5160, E-ISSN 2328-4277, Vol. 7, no 4, p. 370-383Article in journal (Refereed) Published
Abstract [en]

Food production hinges largely upon access to phosphorus (P) fertilizer. Most fertilizer P used in the global agricultural system comes from mining of nonrenewable phosphate rock deposits located within few countries. However, P contained in livestock manure or urban wastes represents a recyclable source of P. To inform development of P recycling technologies and policies, we examined subnational, national, and global spatial patterns for two intersections of land use affording high P recycling potential: (a) manure-rich cultivated areas and (b) populous cultivated areas. In turn, we examined overlap between P recycling potential and nation-level P fertilizer import dependency. Populous cultivated areas were less abundant globally than manure-rich cultivated areas, reflecting greater segregation between crops and people compared to crops and livestock, especially in the Americas. Based on a global hexagonal grid (290-km(2) grid cell area), disproportionately large shares of subnational "hot spots" for P recycling potential occurred in India, China, Southeast Asia, Europe, and parts of Africa. Outside of China, most of the remaining manure-rich or pulous cultivated areas occurred within nations that had relatively high imports of P fertilizer (net P import:consumption ratios amp;gt;= 0.4) or substantial increases in fertilizer demand between the 2000s (2002-2006) and 2010s (2010-2014). Manure-rich cultivated grid cells (those above the 75th percentiles for both manure and cropland extent) represented 12% of the global grid after excluding cropless cells. Annually, the global sum of animal manure P was at least 5 times that contained in human excreta, and among cultivated cells the ratio was frequently higher (median = 8.9). The abundance of potential P recycling hot spots within nations that have depended on fertilizer imports or experienced rising fertilizer demand could prove useful for developing local P sources and maintaining agricultural independence.

Place, publisher, year, edition, pages
AMER GEOPHYSICAL UNION , 2019. Vol. 7, no 4, p. 370-383
Keywords [en]
phosphorus; manure; fertilizer; waste; trade; phosphate
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:liu:diva-157557DOI: 10.1029/2018EF001097ISI: 000467396900004OAI: oai:DiVA.org:liu-157557DiVA, id: diva2:1328651
Note

Funding Agencies|Washington State University; National Socio-Environmental Synthesis Center (SESYNC) under National Science Foundation [DBI-1052875]; PBL Netherlands Environmental Assessment Agency [869.15.015, 869.15.014]

Available from: 2019-06-22 Created: 2019-06-22 Last updated: 2019-11-04

Open Access in DiVA

fulltext(1547 kB)4 downloads
File information
File name FULLTEXT01.pdfFile size 1547 kBChecksum SHA-512
ec4245154e937392421b385d32f66421e7d8842d51c7b3c902399de29b442ec32a792fa3842a522156ea429aa448d112ae9d5fc6e147c6476c0d94be46195dd4
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Metson, Genevieve
By organisation
Theoretical BiologyFaculty of Science & Engineering
In the same journal
Earth's Future
Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 4 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf