Fig. 1. Log of relative change in yield (dY) and log of relative change in cultivated area (dA) on the y and x axis, respectively, both at national level, for 173 countries (dP ≈ dY + dA). Q1 holds “growth” countries, Q2 “intensifying” countries, Q3 “decline” countries, and Q4 “expansion” countries (see Methods: Between groups analysis).
Fig. 1