自本世纪50年代以来,由于原始天然林的急骤减少和造林规模日益扩大,世界上许多林业发达的国家,均在极力开展人工林的生物量、生理功能、生态效应和潜在生产力的研究。其目的是为了适应高速发展集约林业生产的需要,为建立速生丰产和稳定的人工林生态系统提供可靠的科学依据。我国的杉木人工林是一个高度集约的经营类型。在中心产区,杉木林悠久的栽培历史和永续作业方式,充分表明它是一个在人为严格控制下达到生产稳定且保持了生态平 Since the 1950s, many developed countries in the world are making great efforts to study the biomass, physiological functions, ecological effects and potential productivity of plantations due to the drastic reduction of original natural forests and the increasing scale of afforestation. Its purpose is to meet the needs of rapid development of intensive forestry production and provide reliable scientific basis for establishing fast-growing, abundant and stable plantation ecosystem. China’s fir plantation is a highly intensive type of operation. In the central area, Cunninghamia lanceolata has a long history of cultivation and sustainable operation, which fully shows that it is a product under the strict control of the people to achieve stable production and maintain the ecological level