美国人1/5收入用于野外游憩美国是森林旅游起步较早的国家。早在1872年就建立了世界上第一个国家森林公园——黄石公园,1881年建立了国家森林保护区,1890年建立了巨杉公园,1905年建立了国家林业署,1916年建立了国家公园管理局。到20世纪60年代,森林旅游在美国就已经有了相当的规模,不但联邦和州 Americans 1/5 Revenue for Outdoor Recreation The United States is a country where forest tourism started earlier. As early as 1872, Huangshi Park, the first national forest park in the world, the National Forest Reserve was established in 1881, the Giant Sequoia Park was established in 1890, the State Forestry Administration was established in 1905, the state was established in 1916 Parks Authority. By the 1960s, forest tourism had reached a considerable size in the United States, not only in the Federal and State