土壤重金属污染的微生物生态效应

就重金属污染对土壤微生物群落结构多样性、土壤微生物活性、土壤酶活性的生态影响以及重金属镉污染土壤的微生物学评价等领域的研究进展进行了综合述评,确定目前该领域研究存在的主要问题为研究方法的限制以及如何消除土壤各因子间的相互影响及土壤的异质性,并对今后研究趋势作了进一步展望,认为将微生物学性质的变化与金属形态特别是生物有效态联系起来加以研究,在综合研究重金属胁迫的微生物生态效应的基础上,选择多个指标来综合评价土壤的重金属污染,系统地对土壤多样性与重金属污染土壤的微生物和微生物过程的关系进行深入研究,特别是从分子及细胞水平来了解其机理将是今后的研究方向.

Effects of Heavy Metal on Microbial in Soil

In this paper, the progress in the research of ecological effect of heavy metals cadmium on soil microbes is reviewed, including the analyses of the influence of heavy metal on soil microbial populations, activities,communities and soil enzyme activities,and the research advance of microbial indexes to indicate the contamination degree of soil by heavy metal.The major problem which prevent the research was the limit of method and how to avoid the effect of soil factor and difference of soil. The research direction in the future was touched.;