The mangrove carbon pump: Resolving the contribution of underground respiration to mangrove greenhouse gas and carbon budgets

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Mangroves are considered an important global carbon sink. However, there is an imbalance of about 50 per cent in mangrove carbon budgets. This project will resolve whether advective pore water exchange and associated underground respiration represents the missing component of mangrove carbon and greenhouse gas budgets. This innovative project will examine the previously overlooked concept that crab burrow flushing is a major driver of biogeochemical reactions in mangroves. It will use a combination of new experimental and modelling approaches and will contribute to closing a significant gap in our understanding of the coastal carbon cycle.