The concept ofeco-city has been recognized all over the world. The construction ofecological diver-sity system has become one of the goals all over the world. In this paper, we have systematically studied the relationship between sports tourism and the sus-tainable development of environmental protection based on the big data of sports ecotourism. The basic content ofsports eco-tourism includes two parts: nat-ural sports eco-tourism and humanistic sports eco-tourism. The problem of harm to the ecological en-vironment existing in the sports ecotourism project is analyzed. On this basis, the dynamic recursive BP neural network algorithm is used to build the big data model. The model can be used to verify the feasibil-ity of the model and predict the tourist flow of the research object. Based on the results ofbig data anal-ysis, some sustainable development strategies have been proposed, that is,scientifically planning sports eco-tourism projects, enhancing tourists' environ-mental awareness,and cultivating professional tal-ents.These measures can help realize the sound de-velopment of sports eco-tourism.
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