作者：Junhui Wang* Hongjie
Zhang*, Ming Lei, Huiren Hu, and Pertti Pulkkinen
期刊：Bioresources
发表时间：2014年
卷.期.页码：9（1）：1445-1455
摘要：
Korean
spruce (Picea koraiensis Nakai) is one of the most important wood resources for
pulp and paper industry. However, a long production cycle is required for
spruce to obtain mature timber, which may negatively influence the biomass
production. In this study, fiber morphology, chemical composition, and pulping
properties of Korean spruce with different tree ages and vertical locations
were investigated. The results show that, along with the increase of tree ages,
the contents of extractives, lignin, and pentosan increase to different
extents. There are also some differences of pulping properties with different
tree ages. As a pulpwood, the Korean spruce with tree ages of around 22 to 32
years is more suitable for kraft pulping, compared to that with 32-46 years. In
addition, the middle segment of the bole had better pulp strength properties
than the upper or lower bole segments.
全文链接：Effects of Tree Age and Bole Section on Pulpwood of Korean Spruce (Picea koraiensis Nakai)