Fig. 3: Sensitivities (regression slopes) between ΔNEE and environmental drivers in different seasons characterized by stand age groups (i.e., stand age <40 years, stand age between 40 and 90 years and stand age >90 years). | Communications Earth & Environment

Fig. 3: Sensitivities (regression slopes) between ΔNEE and environmental drivers in different seasons characterized by stand age groups (i.e., stand age <40 years, stand age between 40 and 90 years and stand age >90 years).

From: Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age

Fig. 3

a–c, Slopes of ΔNEE versus air-temperature anomalies (ΔTa) a, ΔNEE versus EVI anomalies (ΔEVI) b, and ΔNEE versus α anomalies (Δα) c as derived from a linear mixed-effects regression model for seasonal periods and stand age groups. Error bars show 95% CIs of estimated slope parameters, all statistical analysis were significant at 0.05 except for winter seasons (p > 0.1). The red star inside circles indicate statistical significance at 0.05. Mean NEE values are represented by the color scale.

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