Fig. 2: Decay rates by ecosystem and time frame. | Communications Earth & Environment

Fig. 2: Decay rates by ecosystem and time frame.

From: Soil organic carbon depth profiles and centennial and millennial decay rates in tidal marsh, mangrove and seagrass blue carbon ecosystems

Fig. 2

A Boxplot of soil organic carbon decay rates (k; yr−1) estimated over 80–100 yr and 500–1000 yr time frames for mangrove forest, seagrass meadows and tidal marsh ecosystems. Boxplot horizontal lines indicate median values; box, 25th to 75th percentiles; whiskers: highest and lowest value excluding outliers (Q3 + 1.5×IQR to Q1 − 1.5×IQR, IQR: interquartile range); black dots, potential outliers. Different lower-case letters indicate significant differences among ecosystems tested by Wilcoxon tests (p-value 0.05). B Exponential regression of soil organic carbon decay rates with age for mangrove forests, seagrass meadows and tidal marshes. Circles indicate k values estimated in this study, whereas triangles show k values from peer-reviewed literature (10, 19–21, Table 2). Vertical lines stand for the standard error of the mean (SEM).

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