新世纪,我国林业面临三大挑战:一是如何改善国土日趋恶化的生态状况;二是扭转森林资源不足,特别是用材林资源濒临枯竭的局面;三是发展林业产业,尽快摆脱行业的经济危困。建设速生丰产用材林,是解决我国用材林资源贫乏、用材供需矛盾尖锐的根本之路。 In the new century, China’s forestry is faced with three major challenges: First, how to improve the deteriorating ecological conditions in the country; Second, to reverse the lack of forest resources, especially timber resources on the verge of depletion; Third, the development of forestry industry, as soon as possible to get rid of the economic crisis in the industry . The construction of fast-growing and high-yield timber forest is a fundamental way to solve the contradiction between timber supply and demand in China, which is poor in timber resources.