Fig. 1: Individual assessments of the relationship between crop species diversity indicators and TFIdiff for each pesticide group.
From: Crop diversity reduces pesticide use more efficiently with refined diversification strategies
Each column represents one category of pesticide use for their y-axis: A Total TFI; B Herbicide TFI; C Fungicide TFI; D Insecticide TFI; E Other TFI. Scatter plots with the black lines represent the linear regressions based on the TFIdiff (see ‘Methods’ for details) as a function of each diversity indicator for each pesticide group. Each dot corresponds to one cropping system (N = 1285) with the green/red dots representing significant decreasing/increasing regressions and the grey dots representing non-significant regressions. Slopes of regressions and P values are presented above each sub-figure. Each row represents a crop diversity indicator for their x-axis: Richness, the number of crops in the cropping system; Evenness, the evenness indicator21; Proportional abundance, Simpson inverse diversity index22,23; Dominance, the Berger–Parker index24 (i.e. the proportion of the most abundant crop).
