文献类型：期刊文献

英文题名：Effects of Tree Age and Bole Section on Pulpwood of Korean Spruce (Picea koraiensis Nakai)

作者：Wang, Junhui[1] Zhang, Hongjie[2] Lei, Ming[2] Hu, Huiren[2] Pulkkinen, Pertti[3]

第一作者：王军辉

机构：[1] State Key Lab of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, China; [2] Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China; [3] Finnish Forest Research Institute, Haapastensyrj? Unit, Haapastensyrj?ntie 34, L?yli?inen, FI-12600, Finland

年份：2014

卷号：9

期号：1

起止页码：1445-1455

外文期刊名：BioResources

收录：EI(收录号：20212410483265);Scopus(收录号：2-s2.0-85057158416)

语种：英文

外文关键词：Paper and pulp industry - Kraft pulp

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. ? 2014. All Rights Reserved.