Effect of Spartina alterniflora invasion sequence on soil carbon and nitrogen distribution in a Cyperus malaccensis marsh of the Min River estuary in spring Diversity of methanogen communities in tidal freshwater and brackish marsh soil in the Min River estuary Methane fluxes of Cyperus malaccensis tidal wetland in Minjiang River estuary. Physiological and ecological characteristics of Cyperus malaccensis to Cr6+ stress