杉木人工林是我国特有的经营历史较久的人工林群落之一。其经营集约的程度和独特的栽培方式,在国内外享有很高声誉。长期以来,我国南方山区群众在培养杉木人工林的实践中,就有一种“林粮间作”(或称农林间作)的经验。林粮间作的产生,是山区群众在长期的生产实践中,认识森林自然生长和发展规律的基础上,从林木与林木之间,林木与其它层次的植被之间,以及它们与环境之间的相互关系中,所找到的一种适合经济要求和生产需要的 Cunninghamia lanceolata plantation is one of the unique plantation communities in China that has a long history of operation. Its intensive management and unique cultivation methods enjoy a high reputation both at home and abroad. For a long time, in the practice of cultivating Chinese fir plantation in the mountainous areas of southern China, there is a kind of experience of “intercropping of forest and grain” (or agroforestry). The intercropping of forest and foodstuffs is based on the long-term production practice of mountainous people and their understanding of the law of natural forest growth and development. From the perspective of the relationship between forest and forest, between forest and other levels of vegetation, and between them and the environment In the interrelationship, we found a suitable economic requirements and production needs