Extended Data Fig. 5: Response functions for start of the growing season (SOS) changes (SOSobs−SOSpred) following three types of droughts.
From: Drought legacies delay spring green-up in northern ecosystems

Results from three random forest models for Type 1 (a), Type 2 (b), and Type 3 (c) droughts. Left panels show response functions with lower and upper bounds of independent variables. Bars on the right indicate variable importance. Blue denotes climatic factors, yellow represents drought characteristics, green shows biological variables, and red indicates soil composition variables. Variables with black borders are time-varying for each drought event; others are static. Code for biome types 1. Temperate Broadleaf and Mixed Forests; 2. Temperate Coniferous Forests; 3. Boreal Forests/Taiga; 4. Temperate Grasslands, Savannas, and shrublands; 5. Montane Grasslands and shrublands; 6. Tundra; 7. Mediterranean Forests; 8. Xeric shrublands.