Evaluation of ecological restoration and greening effect of mine high and steep rock slope based on analytic hierarchy process

In order to make a scientific and objective evaluation of the ecological restoration and greening effect of high and steep rock slope mines, and solve the problems of difficult and time-consuming green vegetation screening, this paper takes the ecological restoration and greening effect of high and steep rock slope as the research object, uses the analytic hierarchy process, and takes the adaptability, greening effect, economy and application potential of re-greening vegetation ecology as the criterion layer, 11 indexes are selected to construct the evaluation system of mine ecological restoration and greening effect of high and steep rock slope.The results show that the weight values of drought tolerance, growth rate, high temperature tolerance and cost are greater than 0.10.The weight values of barren tolerance, resource, leaf stage and later management and protection are between 0.05-0.10.The weight values of wind resistance, later market and coverage are all lower than 0.05.The results show that as the evaluation system of ecological restoration and greening effect of high and steep rock slope, it is impossible to consider all influencing factors.On the premise of vegetation survival, this study constructs an evaluation system with intuitive indicators, which provides a new idea for scientific and objective evaluation of ecological restoration effect of high and steep rock slope.