Evaluation of geo-ecological environment bearing capacity along Dujiangyan-Wenchuan highway

This paper puts forward an evaluation index system with 20 indexes and quantitive criteria for geographical ecological environment bearing capacity based on national geographic conditions census data; the evaluation model is determined by comprehensive evaluation method and weighted by analytic hierarchy process; comprehensive suitability zone is introduced through the evaluation results of bearing capacity; taking Dujiangyan-Wenchuan Highway lines as research area, this paper conducts bearing capacity evaluation and construction suitable zoning.