秸秆覆盖免耕土壤细菌和真菌生物量与活性的研究  

Bacterial and Fungai Biomass and Activities in Straw Mulch No Tillage Soils.

作　　者：高云超[1] 朱文珊[2] 陈文新[2] 

机构地区：[1]广东省农业科学院生物技术研究所,广州510640 [2]中国农业大学微生物学系,北京100094

出　　处：《生态学杂志》2001年第2期30-36,共7页Chinese Journal of Ecology

摘　　要：Longterm continuous straw mulch no tillage increased soil total and active microbial biomass and activities.Tillage methods influenced soil bacterial and fungal biomass and activities.Conventional tillage increased soil bacterial biomass,but the shapes and distributions of soil bacteria differed insignificantly for different tillage soils.No tillage increased soil total and active hyphal length and biomass.The bacterial and fungal contributions to respiration differed remarkably for tillage method experimental soils.Conventional tillage surface soil layer concentrated largely fungal component,while no tillage soil had much bacterial activities.It showed that soil microbial activity and is not consistent with biomass and its composition in different tillage method soils.Longterm continuous straw mulch no tillage increased soil total and active microbial biomass and activities.Tillage methods influenced soil bacterial and fungal biomass and activities.Conventional tillage increased soil bacterial biomass,but the shapes and distributions of soil bacteria differed insignificantly for different tillage soils.No tillage increased soil total and active hyphal length and biomass.The bacterial and fungal contributions to respiration differed remarkably for tillage method experimental soils.Conventional tillage surface soil layer concentrated largely fungal component,while no tillage soil had much bacterial activities.It showed that soil microbial activity and is not consistent with biomass and its composition in different tillage method soils.

关 键 词：秸秆覆盖 免耕 土壤细菌 土壤真菌 生物量 活性 

分 类 号：S154.36[农业科学—土壤学]