摘要
探讨威廉环毛蚯蚓(Pheretimaguillelmi)对土壤总微生物量、活性微生物量的影响。蚯蚓处理中(土壤与蚯蚓的比例为5∶1,干重∶活体重,处理时间为24h),用熏蒸提取法测定的土壤总微生物量下降,用底物诱导呼吸法测定的活性微生物量和真菌与细菌比例无显著变化;蚯蚓处理土壤促进了被微生物固持的养分的释放和土壤微生物群体年轻化,增强了微生物的代谢商和纤维素分解活性。结合对文献资料的分析,讨论了土壤微生物量的不同组分对通过蚯蚓肠道的反应。
Influence of earthworm( Pheretima guillelmi) on soil microbial biomass,and active biomass was studied Earthworm treatment(soil to earthworm ratio=5∶1)reduced soil total microbial biomass while the active microbial biomass and fungal to bacterial ration were not significantly affected The earthworm treatment enhanced release of microbially immobilised nutrients,and resulted a rejuvenation of microbial population,and an increase of microbial qCO 2 quotient and cellulolytic activity The influence of earthworm on various components of microbial biomass was discussed
出处
《生态学报》
CAS
CSCD
北大核心
2000年第1期168-172,共5页
Acta Ecologica Sinica
基金
国家自然科学基金!4 9771 0 5 0
关键词
威廉环毛蚯蚓
土壤微生物量
活性微生物量
earhworm
Pheretima guillelmi
microbial biomass
active biomass
substrate induced respiration
