On what background liu xiang led the sichuan servicemen to battle outside sichuan 刘湘率领川军出川作战的背景
2.
Forest recreation resources in the west of sichuan were divided into nature landscape resources human culture resources and ecological environmental resources . the types of forest recreation action and relation between forest recreation resources and forest recreation action have been further analysed in the light of recreation needs and recreation intentions . it is pointed out that forest recreation resources possess three characteristics including concentration unique characteristics and plentiful characteristics in the west of si chuan 并进一步从游憩需要和游憩动机的角度分析了川西地区森林游憩活动类型，详细阐述了森林游憩资源与森林游憩活动之间的相互关系，并以此为基础建立了川西地区森林游憩开发全新的模式，总结出川西地区森林游憩的三大特色，和可持续发展的模式及对策。
