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Fig. 3 | Ecological Processes

Fig. 3

From: Nitrogen use efficiency of terrestrial plants in China: geographic patterns, evolution, and determinants

Fig. 3

Changes in the NUE over evolutionary time at the family level. Evolution time refers to the earliest instance of divergence of a genus in a family, defined as the divergence time of the family. The zero point on the X-axis means the modern times, and a negative value indicates the divergence time from modern times (MA, million years). The green line is the mean slope and shaded grey areas are 95% confidence intervals of the slope by a linear model. Different dots sizes refer to the number of species within each family

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