Extended Data Fig. 5: Cumulative curves of calorie corrected productivity-trade and its impact.
From: Agricultural trade impacts global phosphorus use and partial productivity
Cumulative productivity-trade distribution curves of exporting and importing countries for crop calorie corrected partial total P productivity (a), changes of the ratio between CWPEex and CWPEim (b), the summed (c) and average (d) theoretical saving or wastage of total P through trade from 1961 to 2019. Note: CPHE is the relative concentration of production in high-productivity countries applied to importing and exporting countries (CPHEim and CPHEex, dimensionless). CWPE is the weighted production efficacy, applied to importing and exporting countries (CWPEim and CWPEex, M kcal kg-1 P). The error bars represent the change of maximum productivity at 99.0% ± 0.50% contributions to the total traded products (n = 3 for summed theoretical total P saving, n = 10 for average theoretical total P saving).
