A reviewon the methods for measuring total microbial activity in soils Soil respiration characteristics of four primary Korean pine communities in growing season at Xiaoxing′an Mountain, China Variability in and factors influencing soil microbial respiration in the Jiuduansha Wetland under different successional stages Effects of Vermicompost on Active Organic Carbon and Microbial Activity in Cowpea Soil Effect of straw pretreatment on soil microbial biomass and respiration activity