Multiple Gray Evaluation on the Impact of Tourism on Kanas Tuva Communities

Evaluation on the Impact of tourism is an important evidence for observing tourism development actual effects objectively.Applied the Multi-level Grey Evaluation Method,the evaluation index system of tourism's impacts on Kanas community was established.Based on the data given by experts and the residence questionnaire,tourism's impacts on Kanas Tuva community was evaluated.The result showed the synthetic value of tourism's impact on Tuva community was 3.780 and that of economical,social and environmental tourism's impact were 3.8193.6853.781 respectively,which are all in the range of bigger influence.There are some limitations in traditional method of tourism impact evaluation that is single resources of data make evaluation too subjectively and lacking of method.From the practical application,multi-level grey evaluation method can solve problems in tourism impact evaluation very well.