Method for judging water and soil loss risk grade of production and construction project

The invention belongs to the technical field of water and soil loss judgment, and particularly relates to a production and construction project water and soil loss risk grade judgment method which comprises the following specific steps: S1, determining a research method; s2, dividing risk levels; s3, screening dangerous indexes of water and soil loss; s4, screening water and soil loss sensitivity indexes; s5, index weight is carried out; s6, calculating water and soil loss dangerousness; s7, grading calculation of water and soil loss risks; s8, checking results; s9, simplifying the result twice; and S10, publishing the achievement. Water and soil loss hidden dangers penetrate through the whole life cycle of a production and construction project, prompting and early warning are conducted on a production and construction unit in different stages, the water and soil conservation prevention and supervision work effect is improved, and the water and soil conservation awareness of the production and construction un