一个多世纪以来,西北部太平洋沿岸,美洲黄杉曾经是森林工业的主要支柱。一直提供着优质原料,尤其是对于锯木厂和纸浆厂。从研究中得到的信息告诉我们,从目前和长远的经济以及生物的预测来考虑,在西北部太平洋地区一些森林中需要研究一种新的生产木材和纤维的途径。最近的研究指出,在西北太平洋美洲黄杉林区里,针叶树锯材的可得性在今后的几十年内将下降。在美洲黄杉林区赤杨是主要的阔叶树。该地大约有三百万英亩未经营的赤杨,现有蓄积量68亿立方英尺。这些资源为那些供应家俱、细木工材、模板、单板材和削片的小 For more than a century, on the Pacific Northwest coast, Douglas fir has been the mainstay of the forest industry. Always provide good raw materials, especially for sawmills and pulp mills. The information from the study tells us that from the current and long-term economic and biological predictions, there is a need to study a new way of producing wood and fiber in some forests in the Pacific Northwest. Recent research indicates that the availability of coniferous sawnwood will decline in the coming decades within the Northwest Pacific Ocean in the Douglas Fir Forest region. Alpine is the dominant broadleaf tree in the Americas. There are about three million acres of unmanaged alder in the area and the existing volume is 6.8 billion cubic feet. These resources are for those who supply furniture, joinery, stencils, single boards and shavings