Global and regional phosphorus budgets in agricultural systems and their implications for phosphorus-use efficiency

14686 17 80490 2 222346 document 80490 essd-10-1-2018.pdf application/pdf 16e92e2ba08c2d51866d42fe269c8bf5 MD5 5884018 2018-01-22 07:05:06 https://pure.iiasa.ac.at/id/eprint/14686/1/essd-10-1-2018.pdf 14686 1 1 application/pdf text en public cc_by

essd-10-1-2018.pdf

published 80491 2 222349 document 80491 lightbox.jpg image/png 49da1b4ce22cd681022dd869e54261de MD5 42377 2018-01-22 07:05:26 https://pure.iiasa.ac.at/id/eprint/14686/2/lightbox.jpg 14686 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

lightbox.jpg

preview.jpg

medium.jpg

small.jpg

indexcodes.txt

http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/80490 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/80490 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/80490 archive 5 disk0/00/01/46/86 2017-06-23 07:59:00 2021-08-27 17:29:09 2017-06-23 07:59:00 article show Lun F. Liu J. 8187 Ciais P. Nesme T. Chang J. Wang R. Goll D. Sardans J. Peñuelas J. Obersteiner M. 7255 0000-0001-6981-2769 Global and regional phosphorus budgets in agricultural systems and their implications for phosphorus-use efficiency pub prog_esm The application of phosphorus (P) fertilizer to agricultural soils increased by 3.2 % annually from 2002 to 2010. We quantified in detail the P inputs and outputs of cropland and pasture, and the P fluxes through human and livestock consumers of agricultural products, at global, regional, and national scales from 2002 to 2010. Globally, half of the total P input (21.3 Tg P yr−1) into agricultural systems accumulated in agricultural soils during this period, with the rest lost to bodies of water through complex flows. Global P accumulation in agricultural soil increased from 2002 to 2010, despite decreases in 2008 and 2009, and the P accumulation occurred primarily in cropland. Despite the global increase of soil P, 32 % of the world's cropland and 43 % of the pasture had soil P deficits. Increasing soil P deficits were found for African cropland, versus increasing P accumulation in Eastern Asia. European and North American pasture had a soil P deficit because continuous removal of biomass P by grazing exceeded P inputs. International trade played a significant role in P redistribution among countries through the flows of P in fertilizer and food among countries. Based on country-scale budgets and trends we propose policy options to potentially mitigate regional P imbalances in agricultural soils, particularly by optimizing the use of phosphate fertilizer and recycling of waste P. The trend of increasing consumption of livestock products will require more P inputs to the agricultural system, implying a low P-use efficiency aggravating the P stocks scarcity in the future. The global and regional phosphorus budgets and their PUEs in agricultural systems is publicly available at https://doi.pangaea.de/10.1594/PANGAEA.875296. 2018-01-08 published Copernicus Publications 10.5194/essd-2017-41 184 219 public Earth System Science Data Discussions 10 1 1-18 TRUE 1866-3591 Effects of phosphorus limitations on Life, Earth system and Society (IMBALANCE-P, FP7 610028) FALSE yes info:eu-repo/grantAgreement/EC/FP7/610028/EU/Effects of phosphorus limitations on Life, Earth system and Society/IMBALANCE-P info:eu-repo/semantics/article info:eu-repo/semantics/openAccess