Global phosphorus shortage will be aggravated by soil erosion

Alewell, Christine and Ringeval, Bruno and Ballabio, Cristiano and Robinson, David A. and Panagos, Panos and Borelli, Pasquale. (2020) Global phosphorus shortage will be aggravated by soil erosion. Nature Communications, 11. p. 4546.

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Soil phosphorus (P) loss from agricultural systems will limit food and feed production in the future. Here, we combine spatially distributed global soil erosion estimates (only considering sheet and rill erosion by water) with spatially distributed global P content for cropland soils to assess global soil P loss. The world's soils are currently being depleted in P in spite of high chemical fertilizer input. Africa (not being able to afford the high costs of chemical fertilizer) as well as South America (due to non-efficient organic P management) and Eastern Europe (for a combination of the two previous reasons) have the highest P depletion rates. In a future world, with an assumed absolute shortage of mineral P fertilizer, agricultural soils worldwide will be depleted by between 4-19 kg ha −1 yr −1 , with average losses of P due to erosion by water contributing over 50% of total P losses.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Alewell, Christine and Borrelli, Pasquale
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:20 Apr 2021 16:11
Deposited On:20 Apr 2021 16:11

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