ABSTRACT

The main components of polycyclic aromatic hydrocarbons (PAHs) and the degree of contamination of soil with different oils (gasoline, diesel oil, and lubricating oil) were examined. Malus prunifolia var. Ringo was planted in soil contaminated by gasoline, diesel oil, or lubricating oil with three different concentrations which were low concentration (0.1 g kg⁻¹), medium concentration (0.2 g kg⁻¹), and high concentration (0.5 g kg⁻¹) in April 2016. The changes in PAH contents and soil index in the soil were measured from July to September 2016. It showed that more naphthalene, anthracene, phenanthrene, fluorene, and flexion were detected in the three oil treatments. From July to September, three high-concentration oil treatments had inhibited soil urease activity in soil significantly except the diesel oil treatment with high concentration in August. The diesel and lubricating oil treatments had inhibited phosphatase and invertase activities in soil significantly. Three oil treatments inhibited the number of bacteria significantly in July. The total number of bacteria and fungi was highest in gasoline, and the total number of actinomycetes was highest in lubricating oil. The three oils affected the soil enzyme activity and the number of soil microorganisms and caused some damage to the soil ecological environment.

摘要

研究了多环芳烃 (PAHs) 的主要成分以及不同油类（汽油、柴油和润滑油）对土壤的污染程度。苹果树变种。Ringo种植在被汽油、柴油或润滑油污染的土壤中，三种浓度分别为低浓度（0.1 g kg ^-1）、中浓度（0.2 g kg ^-1）和高浓度（0.5 g kg ^{-1 ）}) 2016 年 4 月。测量了 7-2016 年 9 月土壤中 PAH 含量和土壤指数的变化。结果表明，3 个油处理中检测到更多的萘、蒽、菲、芴和屈曲。7-9月，除8月高浓度柴油处理外，3种高浓度油处理均显着抑制土壤中脲酶活性。柴油和润滑油处理显着抑制了土壤中的磷酸酶和转化酶活性。7 月份，三种油处理显着抑制了细菌数量。细菌和真菌总数在汽油中最高，放线菌总数在润滑油中最高。