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森林是以林木为主体构成的多世代、多层次、多种类(动物、植物、微生物)的复杂生态系统。其中非木材资源如药材、食用菌、野菜、飞禽走兽等,其经济效益远远高于木材效益。同时,发育良好的森林生态系统,除具有保护和改造环境的功能外,也保持了多种多样的生物种类或遗传资源,所以说,森林是人类赖以生存和社会发展的重要资源之一,经营好森林资源,特别是保护、发展和合理利用现有森林资源,具有重大深远的意义。但长期以来,我国的大部分地区都忽视
Forests are multi-generational, multi-layered and multi-species (animal, plant, micro-organism) complex ecosystems that are mainly composed of forest trees. The non-timber resources such as medicinal materials, edible mushrooms, wild vegetables, birds and animals, its economic benefits are much higher than the timber efficiency. At the same time, well-developed forest ecosystems not only have the functions of protecting and transforming the environment, but also maintain a variety of biological species or genetic resources. Therefore, forests are one of the important resources for human survival and social development. It is of great and far-reaching significance to manage the forest resources, especially the protection, development and rational utilization of the existing forest resources. For a long time, however, most parts of my country have overlooked it