森林作为陆地生态系统的主体和重要的社会资源,担负着维护生态平衡和促进社会经济可持续发展的双重使命,保护和发展森林资源是林业一切工作的出发点和落脚点。林业既是一项十分重要的公益事业,又是一项十分重要的基础产业,既有不可代替的生态效益,又有十分显著的经济效益。 As the main body and important social resource of terrestrial ecosystem, the forest has the dual missions of maintaining ecological balance and promoting sustainable development of society and economy. The protection and development of forest resources are the starting point and the foothold of all forestry. Forestry is not only a very important public welfare undertaking, but also a very important basic industry. It not only has irreplaceable ecological benefits, but also has significant economic benefits.