阔叶树与针叶树比较起来,其种类繁多,性质形状复杂,利用范围广泛。根据用途的不同,阔叶树可分为用材树种,薪炭材树种,特用树种,防沙防风树种,环境绿化树种等几大类。用材树种的种类很多,其中山毛榉、柞、青冈栎、柯树等山毛榉科(壳斗科)的蓄积,约占日本全国阔叶树总蓄积的三分之一。由于最近几十年来扩大人工造林的结果,阔叶树大径木愈来愈少,而且有用阔叶树种濒于将要枯竭的境地。山毛榉,水青冈,榉树,日本七叶树,乃是大径、优质、价值高的用材树种。纸浆用材树种,由于国外木屑的输入,其价格迅速下降,因此在日本国内,对于这类用材树种的生产也几乎陷于停滞 Broad-leaved trees and conifers, compared to its wide range of nature and complexity of the shape, the use of a wide range. According to different uses, broadleaf trees can be divided into timber species, firewood species, special tree species, sand control windbreak tree species, such as greening several categories. There are many species of timber species, of which the accumulation of beech (Fagaceae) such as beech, oak, Cyclobalanopsis glauca, and cork tree account for about one third of the total volume of broad-leaved tree in Japan. As a result of expanding afforestation in recent decades, the number of broad-leaved broad-leaved trees has decreased, and the useful broad-leaved species are on the verge of depletion. Beech, Fagus, beech, Japanese horse chestnut, but big diameter, high quality, high value timber species. Because of the rapidly declining prices of wood-based timber species due to the import of foreign sawdust, the production of such timber species in Japan is almost at a standstill