Fig. 3: Representative latitude transects of site index (SI).
From: Russian forests show strong potential for young forest growth
The red north arrow indicates the location of the transect. Circumboreal SI derived from forest height-age relationship; rates presented are estimated on the 90th percentile of the expected height at the reference age (year 50), sequenced from south to north latitude. Green boxes indicate the upper and lower quartiles, green lines within boxes indicate the median, and red points indicate uncertainty bounds. Each chart title indicates the 0.5° × 0.5° area sampled with the equation (E) applied from Supplementary Table 1. Grayed area represents the samples excluded from analysis (NX), with the total number (N) of height-age pairs used displayed in chart titles.
