木材蓄积量

应用灰色系统建模方法，建立年可采伐木材蓄积量的GM（1.1）灰色动态预测模型，并结合实例对年可采伐木材蓄积量进行预测，取得了良好的预测效果。

The predicting gray model of the annual wood quantity for cutting has been set up using the method of gray system in this paper . The annual wood quantity for cutting has been predicted with a practice example , and the good predicting results have been achieved .

桉树生长量显著增加，刚果W5桉平均株高增长16%，平均胸径增长22%，单位面积的木材蓄积量增加59%。

As a result , the average height of trees is increased by 16 % , average diameter at breast height by 22 % , average volum of wood by 59 % .

年可采伐木材蓄积量的灰色预测

The predicting gray model of the annual harvesting volumes

木材蓄积量减少21.99%～54.98%。

Liquefaction of Wood and stand increment from 21.99 % to 54.98 % .

一定森林面积中现存各种活立木的材积总量称为木材蓄积量，它是衡量一个国家或地区林业经营效益的重要指标。

The total volume of the existing variety of living trees were known as the forest volume in a certain forest area , it is an important indicator to measure the forestry management effectiveness of a national or regional .

本文以从山东省（高密市、日照市）采集的共计30个杨树品系和品种为材料，对杨树幼龄木材结构及木材结构与材积蓄积量的关系进行了系统的研究。

This text adds up to 30 poplar . strains and varieties as the material for what has been gathered from Shandong ( Gaomi , Rizhao ), have carried on systematic research to the timber structure of the poplar and timber structure and relation of accumulating quantity of material savings .