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1 引言林分的立木材积表,在长期的林业生产、森林资源调查和资源开发利用中,得到了广泛应用。但是,随着现代森林生态系统学说的深入发展和森林产量综合利用的需要,以木材为主要产品的林业生产活动已远不能适应这种发展需要,代之而起的是全面利用森林的各种产物,这就要求对森林的主体—林木各组分产量有全面的计算和预报。使用立木材积表,只能反映林分不同径阶的立木材积和单位面积上的蓄积量,无确切的干物质重。而林分的生物产量(干物质重)
INTRODUCTION Standing timber volume tables in the forest have been widely used in long-term forestry production, forest resources surveys and resource development and utilization. However, with the deepening development of modern forest ecosystem doctrine and the need of comprehensive utilization of forest yield, the forestry production activities with wood as the main product are far from being able to meet the needs of such development. Instead, the various types of forest Product, which requires a comprehensive calculation and forecast of the yield of each component of the forest - the main component of the forest. The use of standing timber volume tables can only reflect the stand volume and stand volume per unit area of different diameter grades of forest, without exact weight of dry matter. The stand biomass (dry matter weight)