土地利用方式对土壤可培养微生物数量的影响

Abstract

Abstract: To study the effects of different land use patterns on soil cultivable microorganisms in the Yijianfang nursery.The numbers of soil cultivable microorganisms were determined using dilution plate method.The results showed that：（1）under different land use patterns,the number of soil cultivable microorganisms was significantly different.The proportion of actinomycetes and nitrogen-fixing bacteria in woodland was higher than bacteria and fungi,the proportion of bacteria and actinomycetes in farmland was significantly higher than fungi and nitrogen-fixing bacteria.（2）the number of soil cultivable microorganisms decreased in the same land use pattern while soil depth increased.（3）by the correlation analysis,the correlation was different in soil cultivable microbial community,moreover,there existed an especially positive correlation between bacterial and fungal indifferent land use patterns（P〈0.01）.

CLC Number:

S154.3

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Effects of land use patterns on the number of soil cultivable microorganisms

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