Bog petroleum-contaminated soils have been remediated ex situ in conditions close to natural ones. It was found that during the first 30 days in natural conditions, the decomposition of total petroleum hydrocarbons (TPH) was 30 ± 5%. On the 60th and 90th days, the process of TPH decomposition was 45 ± 5% and 60 ± 5%, respectively. The effect of various stimulant supplements was negligible. For the entire observed period, bog soil showed a very high self-cleaning potential with pollution concentration of 5 g of petroleum per 100 g of soil sample. Such diagnostic indicators of soil condition as urease and cellulase activities turned out to be most sensitive in the bog soil. The introduction of mineral fertilizers to stimulate the TPH decomposition increased the activity of urease in comparison with the background soil. On the other hand, the nonionic surfactant acted as an inhibitor of microorganisms involved in nitrogen metabolism, even in the presence of mineral fertilizers. The introduction of mineral fertilizers to petroleum-polluted bog soil stimulated the cellulases activity, while surfactants suppressed them in the early stages. The simultaneous introduction of surfactants and fertilizers kept the cellulase activity at the background level. It is concluded that in the case of petroleum pollution of infertile soils, the introduction of the upper layers of the phytomass of lowland bogs by providing looseness and long-term supply of nutrients from the dying parts of the moss will accelerate the self-cleaning processes.

中文翻译：

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低地沼泽生物量对石油污染土壤的非原位修复的评估

沼泽石油污染土壤已在接近自然土壤的条件下进行了异地修复。发现在自然条件下的前30天中，总石油烃（TPH）的分解为30±5％。在第60天和第90天，TPH分解过程分别为45±5％和60±5％。各种兴奋剂补充剂的作用可忽略不计。在整个观察期内，沼泽土壤表现出很高的自清洁潜力，每100克土壤样品中的污染浓度为5克石油。在沼泽土壤中，尿素酶和纤维素酶活性等土壤状况的诊断指标最敏感。与背景土壤相比，引入矿物肥料刺激TPH分解可提高脲酶的活性。另一方面，非离子表面活性剂即使在存在矿物肥料的情况下也可作为参与氮代谢的微生物的抑制剂。向石油污染的沼泽土壤中引入矿物肥料可以刺激纤维素酶的活性，而表面活性剂则可以在早期抑制纤维素酶的活性。同时引入表面活性剂和肥料可将纤维素酶活性保持在背景水平。结论是，在不育土壤受到石油污染的情况下，通过提供苔藓的垂死部分的疏松和长期营养供应，引入低地沼泽的植物气层的上层将加速自清洁过程。在石油污染的沼泽土壤中引入矿物肥料可以刺激纤维素酶的活性，而表面活性剂则可以在早期抑制纤维素酶的活性。同时引入表面活性剂和肥料可将纤维素酶活性保持在背景水平。结论是，在不育土壤受到石油污染的情况下，通过提供苔藓的垂死部分的疏松和长期营养供应，引入低地沼泽的植物气层的上层将加速自清洁过程。在石油污染的沼泽土壤中引入矿物肥料可以刺激纤维素酶的活性，而表面活性剂则可以在早期抑制纤维素酶的活性。同时引入表面活性剂和肥料可将纤维素酶活性保持在背景水平。结论是，在不育土壤受到石油污染的情况下，通过提供苔藓的垂死部分的疏松和长期营养供应，引入低地沼泽的植物气层的上层将加速自清洁过程。