The imperial court of the Sui practises a policy to engage in households expansion,a policy with the tax reduction as its core,and the policy causes large numbers of the privately sheltered households to make their way into the state household register,thus creating a wonder of having the number of households of the country doubled and grains and goods kept in storehouses increa.

A survey of the development of outdoor sports in Guilin;

Concepts and relationship between outdoor sports and sports tourism;

Study of outdoor sports teaching system;

In recent years,the occurrence of the outdoor sport trauma obviously increases,and there is a significantly increasing tendency.

This article,using the literature material,discusses the outdoor sport the definition and the reason which the sport accident occurs.

Based on the field-survey and analysis of outdoor sport participant questionnaire,the author pointed out problems which perplexing the development of outdoor exercises club in China,such as security risk in outdoor activities,illegal management,vicious market competition and little profit.

This essay, by reviewing the development history of outdoor activities in Shanghai, concludes and makes an exposition of its advantages and disadvantages in different development stages, trying to provide some enlightenment for the future planning and the sustainable and healthy development of outdoor activity in Shanghai.

By the method of investigation,this paper analyzes the present situation of Shenyang outdoor activity club,It points out that Shenyang outdoor activity club is in the lower level,the lower quality of serving and scarce of management ect.