bogs, carbon density, carbon stocks, climate change mitigation, fens, mangroves, swamps

Wetlands are a critical, though vulnerable, global carbon store, but the carbon stored in vegetation has not been quantified at a national scale for New Zealand wetlands. We undertook a literature review to assess vegetation carbon density in wetlands and used meta-analysis to estimate means and uncertainty for both vegetation structural classes and wetland type. We then used a combination of derived vegetation carbon densities alongside spatial extrapolation to estimate the amount of carbon stored in wetland vegetation in New Zealand.