生源和矿物碎屑
biogenic and mineral clastics
土壤微生物生物量
soil microbial biomas
microbial biomass
Soil microbial biomass
Pollution soil microbial biomass carbon
土壤微生物生物量C
Soil microbial biomass carbon
soil microbial biomass C
土壤微生物生物量N
soil microbial biomass nitrogen
土壤微生物生物量氮
soil microbial biomass N
soil microbial biomass nitrogen
土壤微生物生物量磷
soil microbial biomass phosphorus SMBP
character spacing reference-line