文献类型：期刊文献

英文题名：Branch Development in Monoculture and Mixed-Species Plantations of Betula Alnoides, Erythrophleum Fordii and Pinus Kesiya VAR. Langbianensis in Southwestern China

作者：Liu, Kaili[1,2] Wang, Chunsheng[2] Chen, Boyao[2] Wang, Ruihui[1] Zeng, Jie[2]

第一作者：Liu, Kaili

机构：[1] Central South University of Forestry & Technology, Changsha, 410004, China; [2] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Longdong, Guangzhou, 510520, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220410752)

语种：英文

外文关键词：Forestry - Morphology - Plasticity - Value engineering

摘要：Quantitative and morphological characteristics of branches are key factors influencing both tree growth and wood quality. The effects of stand density and artificial pruning on branch development have been widely concerned in monoculture, while branch development in mixed forests has been rarely reported. Here branch development of Betula alnoides , Erythrophleum fordii and Pinus kesiya var. langbianensis were evaluated in a 6-year-old mixed-species trial plantation in Yunnan Province, China, which included five treatments: monocultures of B. alnoides , E. fordii and P. kesiya var. langbianensis , and mixture of B. alnoides with E. fordii or P. kesiya var. langbianensis . Branch quantity (number, proportion, and density), morphology (diameter, length, and angle), and distribution (height and orientation) were measured from 63 dominant or co-dominant trees sampled in the trial plantation. The results showed that the number of live and total branches of B. alnoides in the mixture was significantly higher than those in monoculture, and branch density of B. alnoides in the mixture with P. kesiya var. langbianensis was also higher than those in its monoculture and the mixture with E. fordii . Mixing with B. alnoides had no noticeable effect on branch quantity of P. kesiya var. langbianensis , while significantly lowered branch quantity of E. fordii . Branch angle was not remarkably affected by mixture for these species. More small branches (branch diameter ? 2022, The Authors. All rights reserved.