三明市杉木、马尾松人工林材种出材率表编制的研究

Studies on the Compilation of the Timber-produced Rate Table of PIantation Timber Assortment of Cunninghamia lanceolata and Pinus massoniana in Sanming City

三明市材种出材率表编制是根据部、省有关材种规格标准，进行现场造材，共收集１１６４株样木，其中杉木５５６株，马尾松６０８株。采用电子计算机对样木进行计算和分析，以确定各树种树高级、径阶、材积、树皮率、出材量和出材率。

According to the ministerial and provincial relevant timber assortment standards,the timber-pro-duced rate table of timber assortment in Sanming City was compiled by conducting on-the-spot cross-cut-ting,collecting 1164 sample trees(of which there were 556 trees of Cunninghamia lanceolata and 608 trees ofPinus massoniana) and adopting an electronic computer to make computation and analyses for sample trees,inorder to determine the height classes,diameter ranks。volume,bark rate,outturm,and timber-producedrate for the two tree species。