土壤微生物多样性的研究进展摘要:土壤微生物是土壤的重要组成部分,是土壤有机质和土壤养分转化和循环的主要动力,它参与土壤有机质的分解、腐殖质的形成等生化过程,在土壤生态系统中起着非常重要的作用。本文从土壤微生物多样性的定义、研究层次、研究方法和其影响因素来阐述目前国内外土壤微生物多样性的研究进展, 并对目前存在的问题和今后面临的挑战提出几点看法。关键词:土壤微生物;多样性;PCR-DGGEAdvances of studies on soil microbial diversityAbstract: Soil microorganism, one of the important components of soil, is the main power of soil organic matter and soil nutrients transformation and circulation, and participates in the forming of its resolving, humus of participating in soil organi