Ecological Risk Characterization and Assessment of PHAS in the Shengli Oil Field

Abstract Based on the research of current situation and the developing tendency of ecological risk and management, we extract the key plants which play an important role in ecosystem and is sensitive to the risk factor in the study area of Shengli oil field via the analysis about their response characteristics to oil pollutant. According to oil pollution characteristics and the process of ecological risk assessment receptor options –exposed effect – assessment, we make a comprehensive analysis about the advantages and disadvantages of current ecological risk assessment method in this paper. We use joint probability curve method to assess the ecological risk of PHAS in the Shengli oil field, so we can provide more reasonable and accurate basis for land oil management.