Fig. 1. Mangrove NPP versus mangrove carbon loss.

The mangrove NPP of 191.9 Tg C year⁻¹ and tidal exports of POC (25.6 Tg C year⁻¹), DOC (13.7 Tg C year⁻¹), and DIC (78.6 Tg C year⁻¹) are derived from Alongi and Mukhopadhyay (13) and scaled to the total global mangrove area estimate of Giri et al. (25). Global mangrove CO₂ emissions of 34.1 ± 5.4 Tg C year⁻¹ are from Rosentreter et al. (14). Global mangrove CH₄ emissions are further presented as CO₂ equivalent emissions using the GWP₂₀ (Table 2). The values presented in brackets are the latitudinal scaled total CH₄ emission and burial rates (Table 3). Photo used with permission from A. McMahon.