The Evaluation Of The Impact On Ecological Environmental Because Of The Enlarge Of Tourism

In recent years, our country' s economy has developed rapidly. Tourism has already turned into the major industry in some areas in China with its fast development. A lot of environmental problems have taken place during the tourism expanding because of the absent experiences and mistaken concepts. In order to avoid or reduce the destroy for ecosystem, it is necessary to evaluate the impact for entironment during the enlarge of tourism.Based on the information of home and abroad, according to the characteristics of the tourism, the paper analyses of the negative impact and its reasons which the tourism in its expand process may do to the ecological environment. At one time, the paper presents the research on the tourism expand indexes and the tourism ecological environment impact indexes. Finally to present the very appropriate evaluation indexes system.Based on the compare and analysis to the measures of system value, the paper combine The Analytic Hierarchy Process and the standardization method to evaluate the tourism expand indexes system and the tourism ecological environment impact indexes system, then present their results. Finally, the paper discussed the relation model of the tourism expand indexes evaluated result and the tourism ecological environment impact indexes evaluated result. The measures had been discussed to reduce the impacts of ecological environment during the tourism expanding.The comprehensive degree of the the impact of Dujiangyan city on ecological environment during its tourism expanding is evaluated, and the developments relation between the tourism expanding and the tourism ecological environment was found.