论文部分内容阅读
随着森林资源危机的日益加重,人们对木材及其附属产品的精加工也逐步重枧起来,树皮也不例外.树皮可以为人们提供染料,单宁、药材、多种工业原料,至少可作很多树木的树皮具有较高的经济价值,如,东北红豆杉的树皮,含有较多的紫杉醇(抗癌性能很强),柞树、落叶松、赤杨树皮含单宁率较高,冷杉的树皮可以提炼松节油等等。然而,我们在森林调查计算林木蓄积量时包括干材树皮,而木材销售时只计算去皮材积.因此有必要计算树皮材积。为能很快获得树皮材积搜集了新青林业局的计算木资料。编制出主要树种胸径——皮厚相关关系表,供生产单位参照使用。
As the crisis of the forest resources worsens, the finishing of wood and its ancillary products is gradually re-established, and the bark is no exception. The bark can provide dyes, tannins, medicinal herbs and a variety of industrial raw materials, at least Tree bark can be used for many trees with high economic value, such as the bark of Taxus cuspidata, contain more paclitaxel (anti-cancer properties), Oak, larch, alder bark containing tannin rate High, fir bark can extract turpentine and more. However, we included dried bark in forest inventory calculations for forest inventory, and only lumber volumes were calculated for wood sales, so it is necessary to calculate the volume of bark. To be able to quickly get the bark volume collected Xinqing Forestry Bureau of the calculation of wood information. Preparation of the main tree diameter DBH correlation table, for the production unit with reference to use.