林木速生丰产的实质,在一定意义上来说,就是在立地因子不变的情况下,能在较短的时间内固定较多的太阳能,累积较多的有机质,使林木各部分(叶、枝、干、根、果等)生物量有合理的分配比例。欲达此目的,必须研究现实林分的生产结构,比较不同生产结构的林分生产力和生物量的分配,从中筛选出生产力高的生产结构,并以此作为确定和研究经营措施的依据。所谓生产结构,主要指林木的 In a certain sense, the essence of quick-growing and high-yielding forest is to fix more solar energy in a relatively short period of time and accumulate more organic matter, so that all parts of the forest (leaves, branches, Dry, root, fruit, etc.) a reasonable proportion of biomass distribution. In order to achieve this goal, it is necessary to study the production structure of realistic stands, compare the distribution of stand productivity and biomass of different production structures, and select the production structure with high productivity as the basis for determining and studying management measures. The so-called production structure, mainly refers to the forest