| The soil oil pollution at oil production area in the Loess Plateau of northern Shaanxi isvery serious and the area of pollution is relatively large. The technology of phytoremediationnot only can absorb the pollutant in the soil, but also can improve the quality of ecologicalenvironmental around the oil production area. Therefore, select the plants which has strongtolerance is very significant to remedy the oil-polluted soil and re-vegetation. The methods offield survey and pot experiment and lab analysis had been used, the influence ofoil-polluted soil on the growth and consist of plants was researched. The absorbed andaccumulated characteristics to the oil pollution of different plants were Analyzed. And theplants which has strong tolerance had been selected. There are mainly conclusions:（1）Thesoil oil pollution at the oil production area is very serious and the oil pollution is mostlyconcentrate in the surface of soil. The maximum TPH of soil in the Luobodi wildcat is50340mg/kg, Yanjiawan is44720mg/kg, Xuejiawan is37287mg/kg.（2）There are23plant speciesin study area which belong to13family and21genus. Among these plants, the Poaceae andLeguminosae sp. and Asteraceae have relatively wide distribution（.3）The biomass of the herbplants are decreased with the increasing of the content of oil pollutant in the soil. The slippageof biomass of the Agropyron cristatum. and Artemisiagmelinii is very small and these twoplants can normal grow in the area where the oil pollution in soil is very serious. The biomassof the Platycladus orientalis is bigger than contrast, while the biomass of other woody plantsbecome smaller（.4）The cumulation and the transfer and accumulate ability of different plantsfor oil pollution showed that the Robinia pseudoacacia, Platycladus orientalis, Populussimonii, Amorpha fruticosa, Sophora viciifolia, Hippophae rhamnoides, Agropyron cristatum.and Artemisia gmelinii can be the outstanding plants for the restoration of oil-contaminatedsoil. |
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