随着人类文明的推进,人类对林业的需求也呈多元化,有对木材和其他林产品等有形产品的需求,更有对森林生态的无形产品的需求。林业既承担着为国家建设和人民生活提供多种物资,优化经济结构,保证区域经济协调发展的艰巨任务,又承担着维护生态平衡,保护物种资源等重大使命。因此, With the advance of human civilization, human needs for forestry are also diversified, with demand for tangible products such as timber and other forest products, and more for intangible products of forest ecology. Forestry not only undertakes the arduous task of providing various materials for national construction and people’s life, optimizing economic structure and ensuring the coordinated development of regional economy, but also undertakes the major mission of safeguarding ecological balance and protecting species and resources. therefore,