在湖泊环境研究中， 淤泥质沉积物取样是一项很重要的工作，样品的取心率和原状性直接影响了环境研究的结果。
Sampling undisturbed lacustrine sediment is a critical job for environmental research. The recovery and undisturbedness of samples ha ve direct effect on the environmental research results.
以水稻土为供试样品，在厌氧培养条件下测定了不同土壤中氧化铁的还原状况，比较了不同氧化铁矿物的微生物还原能力。
Different paddy soils as tested samples, reduction status of difference soils was be determined under anaerobic incubation, and the ability of microbial iron reduction was be compared.
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