This article expounds the origin of contradictions between tourist economy and
environmental protection,and analyses the
relationship between the structure and function of landscape ecosystem and tourist economic system on the one hand and
environmental protection on the other hand.We consider that the structures of tourist production and tourist trades in tourist economic system have the most close relationship with
Environmental protection.Only when their structures get improved that we can solve the contradictions between the tourist economic system and the landscape ecosystem,and abate the influence of tourist activities on eco environment to a great extent.The functions of landscape ecosystem and tourist economic system are influenced by their structures and always in a contradictional situation.We know that the natural landscape ecosystem transmits its energy and matter through food chain or food web,and if a tourist developmental project breads the food chain,ecological balance will be destroyed.In view of the ever increasing quantity of pollutants in tourist area,strengthening the decomposition function of tourist economic system becomes an important content in environmental protection.In the end of this article we deal with the problems that affect the tourist trade,such as soil erosion,natural disaster,environmental pollution,etc,as well as the measures to tackle the problems along the Xiangxi river travelling route.