Outdoor sports are a series of sports events carried out in inartificially natural environments. However, drastic sports competition and excessive utilization of the outdoor sports resources will surpass its carrying capacity, bringing about environmental damage and threats to ecological security. This paper aims to discuss the extension of the life circle of the outdoor sports resources with methods of literature collection and case analysis and to emphasize the harmonious co-development of outdoor sports and natural environment. The conclusions obtained are as follows: outdoor sports can prompt people to live in harmony with nature; a proper load of outdoor sports resources can make a contribution to its circular development; the carrying capacity of outdoor sports resources is limited, which means overload will threat ecological security. Therefore, in order to get outdoor sports developed in a scientific, rational, healthy and orderly way, we must protect the ecosystem and increase the carrying capacity of outdoor sports resources.

The objective of this study was to investigate the influence of apron and equipment cabin on aerodynamic characteristics of intercity train using numerical simulation. Then aerodynamic force of the train in the open air and crosswind, pressure changes of the train and tunnel were obtained. The results show that the intercity train with apron or equipment can reduces drag, which mainly reduces the pressure differential drag more than 7%. The train with apron has better crosswind stability than with equipment cabin because of the smaller windward area, and obviously it does not better than the original train. And the train with apron also has better performance of passing tunnel than with equipment cabin and the original train.

Sports tourism and leisure sports are among the latest fashions of modern society, the exploitation of resources of which are of great importance. The aim of exploitation of sports tourism and leisure sports resources is to serve human beings by utilizing resources and to turn advantages of resources into those of products. Environmental pollution, ecological environment degradation and the impact of invasive alien species and the use of machines, resulting from exploitation of sports tourism and leisure sports resources, however, destroy the carrying capacity of places that bear these resources. Exploitation of sports tourism and leisure sports resources, therefore, must be planned scientifically and attention should be paid to the protection of ecological environment. Adopting methods of literature collecting and case study, this paper studies rational exploitation of sports tourism and leisure sports resources and regional economic development, emphasizing on adhering to sustainable development.

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Construction model for traditional performance appraisal index pay attention to financial perspective and Disregard corporate social responsibilities cannot adapt to enterprises development. To meet the need of overall evaluating enterprises sustainable development ability, this paper first proposed the idea to introduce a corporate social responsibility strategy into performance evaluation, analyzed the basic principles of overall evaluating Enterprises strategic performance in the view of social responsibility. Then proposed three dimensions include corporate social responsibility, internal processes; at last bring social responsibility into Balanced Scorecard as an important dimension to build a new threedimensional Evaluation model.