. Author manuscript; available in PMC: 2022 Feb 2.

Published in final edited form as: Front For Glob Change. 2021 Jun 7;4:1–14. doi: 10.3389/ffgc.2021.676691

TABLE 2 |.

Site comparisons of sediment accretion rate (SAR), mangrove accretion rate (MAR), carbon (C) density, and C stable isotope ratio (δ¹³C) within either the historic or recent time period.

Parameter	Historic (1930–1970) Site differences	Recent (1970-2016) Site differences
SAR	None	SJ, Torr < other sites
MAR	SJ < MPE, MPW, Pin	Pin > MPW, SJ; SJ < all but Torr
C density	Pin < MPE, MPW	MPE > MPW
δ¹³C	Pin1 > MPE, Torr > MPW, SJ	Pin > all; MPE > Torr, SJ, MPW; Torr > MPW

Statistical site differences (P < 0.05) within time periods were based on whether bootstrapped bounds (i.e., 2.5th and 97.5th percentiles) overlapped. Parameter means, lower, and upper confidence bounds were generated on bootstrap runs (1,000 values per core; combined for a total of 2,000 values for sites with two replicates). See Table 1 for site abbreviations.