翅碱蓬对石油烃污染的海岸带修复的初步研究

研究了翅碱蓬对石油烃污染的天津渤海湾河口海岸带的修复效果.通过野外种植翅碱蓬试验,监测土壤中石油烃的质量比发现,翅碱蓬能使盐碱土壤中的石油烃质量比下降,种植翅碱蓬的盐碱土壤中的石油烃降解率比无翅碱蓬对照的盐碱土壤中的石油烃降解率高21.7%～37.9%.翅碱蓬生长情况良好,试验区植被得到恢复,覆盖率达到60%以上.结果表明,翅碱蓬对石油烃污染的盐碱土壤具有一定修复作用.

Remedial effect of Suaeda salsa (L.) Pall. planting on the oil-polluted coastal zones

This paper wants to share its study results with its readers on the remedial effect of planting Suaeda salsa (L.) Pall. in the crude oil-polluted coastal zones in Tianjin estuarine area. As a matter of fact, suaeda is not only a typical protective and salinity-and-alkali resistant plant, but also a pioneering species spreading from the inland area to the coast one. While monitoring and controlling the oil pollution in the given zone, the authors keep watching and on-spot soil testing the situation of Suaeda salsa (L.) Pall. planting in the salinity-and alkali-suffering soil with no fertilization and other kinds of particular care-taking. The results from comparison of the concentration of oil remnants in the soil before and after planting the bush indicate that the plant helps to reduce the oil-pollution to the soil. The degradation rate of oil leaks in the soil with Suaeda salsa (L.) Pall. is 21.7%-37.9% higher than in the control soil. Thus, the field research of ours tells us that Suaeda salsa (L.) Pall. may grow very well and its coverage rate of the plant is more than 60% and the vegetation has gradually got restored, which proves that the plant is indeed a kind of remedy to the fertilization restoration of the oil-polluted crop-fields.