择伐对阔叶红松林资源可持续利用的影响  

Influence of selection cutting on sustainable timber production of a broadleaved Korean pine( Pinus koraiensis) forest on Changbai Mountain

作　　者：包也[1,2] 于大炮[1] 周莉[1] 周旺明[1] 孟莹莹[1,2] 吴志军[1,2] 郭焱[1,2] 王晓雨[1,2] 代力民[1] 

机构地区：[1]中国科学院沈阳应用生态研究所森林与土壤生态国家重点实验室,沈阳110164 [2]中国科学院大学,北京100049

出　　处：《生态学报》2015年第1期31-37,共7页Acta Ecologica Sinica

基　　金：国家科技支撑计划项目(2012BAD22B04);森林与土壤生态国家重点实验室自主重大项目(LESE203-12)

摘　　要：科学评估目前的择伐方式对森林结构与功能的影响对区域森林资源的可持续利用具有重要意义。以择伐过的阔叶红松林为研究对象,并以原始林为对照,分析了择伐对物种组成、林分结构以及对木材生产的影响。结果表明,低强度择伐(≤20%)对物种组成和蓄积结构均没有显著影响,而高强度择伐则显著改变了物种组成和蓄积结构。择伐后林分蓄积量均显著小于原始林,不同择伐强度间没有显著差异。择伐显著影响了用材树种的数量和质量,导致择伐后样地中用材树种的株数和蓄积量均显著减少,严重影响了林分的木材持续生产能力。因此,从阔叶红松林木材可持续利用角度来看,需要重新思考红松不作为采伐树种的用材林经营技术模式。For sustainable timber production from regional forests, it is important to evaluate the influence of selection cutting on forest structure and function. In the present study, we analyzed changes in species composition, stand structure, and timber production after partial harvest of a broadleaved Korean pine forest on Changbai Mountain. We showed that the species composition and stand structure varied markedly after a high-intensity cut, but were less affected by a low-intensity cut （≤20%）. In addition, we determined a clear decrease in stand volume of the forest, but no marked difference between high- and low-intensity cuts. Selection cutting affected the number and quality of commercial trees and caused a marked decrease in the volume of commercial timber. Our results imply that selection cutting has a deleterious influence on sustainable timber production. Thus, timber production without selection cutting of Pinus koraiensis should be considered.

关 键 词：择伐 阔叶红松林 可持续利用 林分收获量 森林结构 

分 类 号：S718.5[农业科学—林学]