我国天然云冷杉针阔混交林更新研究进展  

A Review on the Study of Regeneration of Natural Spruce-Fir Mixed Stand of Coniferous and Broad-Leaved Trees in China

作　　者：黄新峰[1] 亢新刚[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《世界林业研究》2004年第5期34-38,共5页World Forestry Research

基　　金：国家"十五"攻关子课题"东北过伐林区采伐更新技术研究与示范"( 2 0 0 1BA5 10 B0 70 3 )的部分内容

摘　　要：　天然云冷杉针阔混交林是我国的主要森林类型之一 ,在国民用材中占有相当大的比重。天然更新对森林群落的重构起着至关重要的作用。采伐是影响森林更新的主要人为干扰因素之一。对天然云冷杉针阔混交林适宜采用择伐 ,不适宜采用皆伐。择伐强度在 3 0 %以下有利于天然更新。林隙中更新树种的种类和数量通常多于林冠下 ,林隙具有较高的物种多样性指数。The natural spruce-fir mixed stand is one of the main forest types in China, and also has large proportion in the civil and national consuming. Natural regeneration plays a very important role in forming the forest population. Felling is one of the key factors which influences forest regeneration. Instead of clear cutting, selection cutting is suitable for natural spruce-fir mixed stand. The density of selection cutting is bellow 30% is favorable to natural regeneration. The number and species of seedlings in gap is generally more than that under canopy. Gap has the superior biodiversity index.

关 键 词：天然林 云冷杉针阔混交林 更新 森林演替 采伐 林隙 枯倒木 

分 类 号：S754[农业科学—森林经理学]