Fig. 6: Uncertainty and variance-based sensitivity analysis.

a–d, The uncertainty in country ranking from different suitable variations of producing the PLANTdex across n = 3,500 model runs for four crops: oil palm (a), rice (b), soybean (c) and wheat (d). The median (white bar) and the corresponding 5th and 95th percentiles of the distribution of potential PLANT index values per country are also presented (box), with minima and maxima whiskers. The red circle indicates the original PLANT index value used in this study. e, Variance of country ranking split by the contributing input factor on the basis of Sobol first-order indices. The part of variance that is not described by the first-order indices is noted as non-additive. Countries are listed in ascending order of total variance. f, Total effect sensitivity indices for the variance of each country’s rank.