| As the world's first national park,it has been the largest in the world so far. Yellowstone National Park is a microcosm of the development of the United States'national park. After World War II, "Sun Belt" in the western park of the United States rises into the high-speed development stage of economic development; tourism expanded rapidly,both within and outside of Yellowstone National Park,so that increase human economic activities, ecological protection of its natural environent and causes severe destructive effects. Moreover,in the 70's, the United States emerged the most serious economic crisis after the war, Yellowstone National Park is faces serious problems of funding and personnel shortages.In this case, Management Office and relevant departments of Yellowstone National Park in 70-90 years is a series of reforms: first of all,it cooperates the rapid momentum of social environmental forces since the 60's,and promotes federal environmental legislation, and strengthens environmental advocacy with particular attention to start from the root to prevent, through family-oriented, especially children and young people in public and educational activities and self-education, it promotes the importance of ecological protection ,and improves the recognition and support of the whole society; in the second place,followed by scientific zoning and research involved, it makes experts and scholars Cheng Wei Yellowstone National Park ecosystem restoration and protection of core strength, actively promote the ecological status assessment of institutionalized so that it gradually come from a negative of care to protect the Shen-style landscape ecological protection level Yanjiu Xing change; again, the face of post-war commercial development and tourism pressures, Yellowstone National Park flows control is also implemented to reduce the pressure on the ecology and management, to improve the licensing system so that business services and security to run standardized; Finally, by attracting more social attention and more social support, multi-channel sources of funding and personnel to expand to address the economic and personnel problems. Thus, Yellowstone National Park from the landscape than a single conservation and recreational functions to ecological protection after the reform, environmental education, research management, multi-functional tourism development direction to form a multi-platform national park, which is more of an open and socialization, rationalization. However, despite 70-90 years of the 20th century reform of Yellowstone National Park offers a number of valuable experience, however, it also failed to completely solve the human economic activities and sustainable use of natural contradiction between the challenges ahead is still tough. |