Long-term tillage effects on bacterial biomass and community structure distribution within water stable aggregates
نویسنده
چکیده
This study addresses the tillage effect on the distribution of bacterial biomass and their community structure in a subtropical purple rice soil ecosystem. Similar distribution patterns of soil bacterial biomass within water-stable aggregates (WSA) were observed under different tillage managements. Although the distribution pattern of soil microbial biomass was not changed by tillage practice, soil microbial biomass increased significantly in all size fractions of WSA under combined ridge with no-till (RNT) treatment. While tillage management did not change the distribution patterns of soil microbial biomass, it did change their community structure. Results indicated that the distribution pattern of microbial biomass in WSA was governed by aggregate size, whereas bacterial community structure was significantly affected by tillage management.
منابع مشابه
Long-term tillage effects on the distribution patterns of microbial biomass and activities within soil aggregates
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