Based on the comprehensive and practical characteristics of the course of environmental impact assessment,the development of case teaching is helpful for students to master and apply the course.Based on the guiding position of ecological civilization thought,ecological impact assessment has become the main task of the course.Taking the construction project of barley straw reservoir as an example,the ecological environment index method was used to scientifically evaluate the impact of the reservoir on the ecological environment.The results showed that the ecological environment indexes within the evaluation range before and after the operation of the reservoir were 89.709 and 89.718,respectively,which were in line with the requirements of the excellent grade EI>75 of the ecological environment classification and belonged to the excellent grade.In view of the possible impact on the ecological environment during reservoir construction and operation,effective mitigation measures are proposed to achieve the purpose of protecting the ecological environment.
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