Mangroves are known as important carbon storage hotspots, yet their net climate benefit can be offset by large greenhouse gas emissions. In this study, we conducted a 1‐yr in situ incubation coupled with high‐resolution molecular and microbial analyses to elucidate the fate of two major types of mangrove detritus, including leaves ( Kandelia obovata and Sonneratia apetala ) and macroalgae ( Ulva prolifera ), via microbial meta...