Fig. 3: Pathways for early-season factors controlling peak-season growth.
From: Seasonal biological carryover dominates northern vegetation growth
Structural equation modeling (SEM) analyses were conducted for three main vegetation types: temperate grassland (Tibetan Plateau excluded) (a), forest (b), and arctic tundra and shrubland (c) (see Supplementary Fig. 9). Double-headed gray arrows indicate covariance between variables. Single-headed arrows indicate the hypothesized direction of causation, with positive and negative relationships in pink and blue, respectively. Solid lines represent relationships that are significant statistically (p < 0.05), and hatched lines represent relationships that are not significant statistically (p > 0.05). Arrow thickness is proportional to the strength of the relationship and to the standard path coefficients adjacent to each arrow. The explained variance (r2) is labeled alongside each response variable in the model. EGS and PGS represent early and peak growing season, respectively.
