Ecological Risks Assessment Of Yingtai Oil Field Development

Through the case study of oil development ecological risks assessment that in wetlandconservation,this study focused on Ying Tai oilfield，which located in the experiment zone ofMomoge National Nature Reserve.The study based on the theory of the ecological riskassessment, following its general theory for framework and methodology. First,the studydetermined the evaluation of regional the range of10400hm~2by filed surveys and systemanalysis.Meanwhile,selected habitats and birds as the risk of receptor;The ecologicalendpoint is based on receptor sensitivity to risk sources;The study taked the oil fielddevelopment in the process of risk source for the blowout of crude oil and sewage spills,emergency venting, fire and explosion as the five kinds of wells station road construction;Soilpollution index based on the above is analysised to determine the seven evaluationindexs,including the index of surface water pollution, air pollution index, species importanceindex, biodiversity index, natural index and the degree of fragmentation.Combined with the ecological environment monitoring data，Use of the analytichierarchy process, owned by one of the indicators Standardization Law and comprehensiveecological risk index, calculation the ecological risk of habitat value.According to thecalculation of the ecological risk,the upland habitat ecological risk value is0.2157,and thepaddy habitatsis0.2995, Which is more,the moss grass-Calamagrostis angustifolia swampwet meadow habitat ecological risk value is0.4826. The results showed that the highestecological risk value is the moss grass-Calamagrostis angustifolia swamp wet meadowhabitat.After analyzing, the reason is that the Carex-Calamagrostis angustifolia marshmeadow habitats for protected areas, the growth of habitats of rare birds and sensitiveecological environment.The appropriate management measures are based on the characteristics of the habitatecological risk value,this paper aims to provide a scientific basis for the the Ying Tau oilfieldand ecological management of the oil fields of the same type,which can offer reference forother wetland conservation of oil resources in the region to develop ecological risk evaluation.