The environmental impact report is the written form of environmental impact assessment procedures and contents, and is an important technical document of environmental impact assessment. The following principles shall be followed in the preparation of Lanzhou Environmental Assessment Report:

1. The environmental impact report should be comprehensive, objective and fair, and generally reflect the whole work of the environmental impact assessment. For the report with more assessment contents, the key assessment projects can prepare separate reports, and the main technical problems can prepare separate special reports.

2. The main report and sub report (or annex) should be concise and accurate, with clear graphs and clear arguments, typical projects or more complex projects. The main report should be concise and to the point, and the sub report should include the special report and calculation basis. The environmental impact report shall be prepared according to the environmental and engineering characteristics and the assessment level. Preparation of Lanzhou Environmental Impact Report