Tidal　flats　not　only　effectively　absorb　and　store　large　amounts　of　carbon　but　they　also　serve　as　habitats　for　numerous　microorganisms,　boasting　rich　biodiversity.　This　study　compared　the　diurnal　and　monthly　variations　in　soil　respiration　among　different　types　of　tidal　flats　and　found　temperature　to　be　a　crucial　factor　influencing　soil　respiration.　Additionally,　it　examined　soil　respiration　in　different　tidal　flats　before　and　after　mangrove　planting.　The　study　revealed　that　replacing　Spartina　alterniflora　with　mangroves　after　its　eradication　could　reduce　approximately　5.96　×　108　g　of　CO2　emissions　annually　in　Luoyuan　Bay.　Furthermore,　both　mangrove　planting　and　S.　alterniflora　invasion　increased　the　richness　of　soil　microbial　communities　but　decreased　their　diversity.　Given　that　the　mangroves　in　Luoyuan　Bay　are　still　in　the　seedling　stage,　with　underdeveloped　root　systems　and　limited　secretion　of　root　exudates　and　organic　matter,　it　is　hypothesized　that　the　microbial　communities　in　the　rhizosphere　soil　are　relatively　simple,　with　fewer　species　and　lower　abundance.　Therefore,　in　the　context　of　global　climate　change,　studying　soil　respiration　in　tidal　flats　can　enhance　our　understanding　of　their　contribution　to　atmospheric　carbon,　aiding　in　the　development　of　measures　to　control　carbon　emissions　and　mitigate　global　climate　change.　©　2024