Response of soil microbial community in Jiuduansha wetland to different successional stages and its implications for soil microbial respiration and carbon turnover

► SMR of different succession stages vary and are highest in Spartina alterniflora zone. ► Phragmites australis community zone has a higher organic carbon accumulation capability. ► Different soil microbial characteristic is the important reason for different SMR. ► Different waterlogging time and IN lead to different soil microbial characteristics. ► Special microbial species occur in S. alterniflora zone soil and strengthen SMR.