Fig. 1: Relationships between the dates of leaf senescence (DFS) and precipitation changes. | Nature Communications

Fig. 1: Relationships between the dates of leaf senescence (DFS) and precipitation changes.

From: Declining precipitation frequency may drive earlier leaf senescence by intensifying drought stress and enhancing drought acclimation

Fig. 1

Scheme 1 (A, D, G) conducts partial correlations analysis between DFS and total precipitation, controlling only temperature and radiation, and Scheme 2 (B, E, H) by additionally controlling precipitation frequency. Scheme 3 (C, F, I) is partial correlations between DFS and precipitation frequency, controlling temperature, radiation and total precipitation. A–C Represent the results from satellite observations. Panels (D–F) are the results classified by plant functional type, including temperate broadleaf forests (TBF), temperate coniferous forests (TCF), boreal forests (BF), temperature grasslands (TG), montane grasslands (MG), tundra (TD), and xeric shrublands (XS). Panels (G–I) show the same analysis using flux measurements. The solid lines and shaded areas represent the mean value and standard derivations for each latitude region, respectively. Dotted regions indicated the partial correlations were significant at p < 0.05. A two-sided t test was used to assess the significance of the partial correlation analysis. Source data are provided as a Source Data file.

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