文献类型：期刊文献

中文题名：我国桉树大径材培育模式和效益分析——基于“十三五”桉树大径材培育技术研究实践

英文题名：Model and Benefit Analysis on Large-diameter Eucalypt Cultivation in China:a Case Study Based on the Research and Practice during the 13^(th) Five-year Plan Period

作者：何沙娥[1] 陈少雄[1] 欧阳林男[1] 张维耀[1] 刘学锋[1]

第一作者：何沙娥

机构：[1]中国林业科学研究院速生树木研究所,广东湛江524022

年份：2022

卷号：39

期号：1

起止页码：43-47

中文期刊名：桉树科技

外文期刊名：Eucalypt Science & Technology

收录：CSTPCD

基金：国家重点研发计划课题“桉树大径材定向培育技术”(2016YFD0600502)。

语种：中文

中文关键词：桉树;大径材;培育模式;经济效益;

外文关键词：Eucalypt;Large-diameter timber;cultivation model;economic benefits;

分类号：S753.3

摘要：针对我国桉树大径材培育技术模式缺乏的问题,本文介绍了我国桉树大径材的基本定义和主要培育技术的贡献力,总结了中国林科院速生树木研究所“十三五”期间桉树大径材培育的3种密度控制技术模式和经济效益。模式一“初植密度3 m×4 m培育模式”,9年生时胸径16 cm以上立木蓄积量和净现值分别为229.44 m^(3)·hm^(-2)和40193元·hm^(-2),较常规密度2 m×4 m培育模式的分别提高了35.41%和29.68%;模式二“中龄林间伐模式”,间伐3.5年后直径16 cm以上立木蓄积量和净现值分别为370.90 m^(3)·hm^(-2)和74852.27元·hm^(-2),比不间伐对照的分别提高了56.0%和26.39%;模式三“幼龄林间伐模式”,间伐4年后直径16 cm以上立木蓄积量和净现值分别为157.20m^(3)·hm^(-2)和61572.04元·hm^(-2),比不间伐对照的分别提高了90.91%和107.45%。这些技术模式的提出为我国桉树大径材培育奠定了良好的技术基础。
In view of the lack of cultivation models for production of Large-diameter eucalypt timber in China,based on the research and practice of Large-diameter eucalypt cultivation conducted by Research Institute of Fast-growing Trees,Chinese Academy of Forestry,during the 13^(th) Five-year Plan period,this report introduces the concept of Large-diameter eucalypt in China and the contribution of main cultivation technologies and summarizes three cultivation models and their benefits.In 3 m×4 m initial planting density cultivation model,the standing stock of objective trees(trees with diameter at breast height(DBH)>16 cm)and the net present value(NPV)at 9 years of age were 229.44 m^(3)·hm^(-2) and 40193 RMB·hm^(-2) respectively,which increased by 35.41%and 29.68%compared with the conventional cultivation model of 2 m×4 m;in the middle-age forest thinning model,after 3.5 years of thinning,the standing stock of objective trees and NPV were370.90 m^(3)·hm^(-2) and 74852.27 RMB·hm^(-2),respectively,which increased by 56.0%and 26.39%compared with the control group.In the young forest thinning model,the standing stock of objective trees and NPV were 157.20 m^(3)·hm^(-2) and 61572.04 RMB·hm^(-2) after 4 years of thinning,respectively,which increased by90.91%and 107.45%compared with the control without thinning.These studies provide a good technical foundation for Large-diameter eucalypt cultivation in China.