Microbial activity in wetland soils of dry lake in semi-arid steppe

摘要

We studied on microbial activity in wetland soils of dry lake of Hui Teng xi le in semi-arid steppe with the reference of typical steppe in semi-arid areas. Microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), basal respiration (BR), potential respiration (PR), microbial quotient (qMB), and metabolic quotient (qCO2) of soils were used to survey microbial activity. The results showed that: in the successive process of recession in dry lake the soil microbial activity characteristics in wetland tend towards the landward distribution: soil microbial biomass carbon (SMB-C) was the lake bed(HD)< the lake center(HX)2) is DT