Fig. 5: Trends in the soil P budget for the time period 2021–2100.
From: Soil phosphorus crisis in the Tibetan alpine permafrost region
a Soil P outflows. b Soil P inflows. c Erosion and plant uptake of P as a proportion of total P outflows. d Soil P net losses. The projected P dynamics were derived under the SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5 future climate scenarios. The SSP2-4.5 and SSP5-8.5 scenarios were applied to predict future soil P flows from 27 CMIP6 global climate models, whereas the SSP1-2.6 and SSP3-7.0 scenarios were applied to predict future soil P flows from 23 CMIP6 global climate models. The shading represents the standard deviation calculated for the corresponding 23/27 CMIP6 global climate models in each scenario. The black line shows the historical soil P budget data. The soil P outflows from erosion represent the sum of P losses from water and wind erosion. The results of the Mann–Kendall and change point tests show that the change point for the soil P budget is around 2050.
