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Fig. 3 | Annals of Forest Science

Fig. 3

From: A meta-analysis of changes in soil organic carbon stocks after afforestation with deciduous broadleaved, sempervirent broadleaved, and conifer tree species

Fig. 3

The rate of SOC stock change of different tree species for a cropland afforestation and b grassland afforestation. Note: Dots with error bars denote the overall rate of SOC stock change and the 95% confidence interval. Sampling depths (0–20 cm, 20–40 cm and 40–60 cm) are indicated. The number of observations is indicated in parentheses. A different letter at the top of the bars indicates a difference significant at the P < 0.05 level

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Annals of Forest Science

ISSN: 1297-966X