闽北天然阔叶林径阶材种结构分析及出材率表的编制

Compilation of Output Structure of Diameter Grade Wood Assortments and Volume Ratio Table for Natural BroadLeaved Forest Tree Species in North Fujian Province

应用闽北天然阔叶林现场造材资料,在分析径阶材种结构规律的基础上,选择适合的方程建立材种出材率模型并编制二元材种出材率表。经检验,该表精度较高,在林业生产上有实用价值。为方便生产中应用,还建立了树高曲线模型,由二元材种出材率表导出了一元材种出材率表。

The volume ratio model of wood assortment was built by choosing the proper equation, and the two dimension merchantable wood assortment volume yielding rate tables were compiled based on structure analyses of diameter grade wood assortments, with on the spot sample timber data collected from the natural broad-leaved for- ests in the north Fujian Province. The wood assortment volume yielding rate tables were tested to be with high pre- cision and practicable in forestry production. In order to facilitate the production and application, tree height model was established, and the one dimension merchantable wood assortment volume yielding rate tables were derived from the two dimension tables.