[1]宁杨翠,郑小贤,蒋桂娟,等. 长白山天然云冷杉异龄林林分结构动态变化研究[J].西北林学院学报,2012,27(02):169-174.
　NING Yang-cui,ZHENG Xiao-xian,JIANG Gui-juan,et al. Dynamic Change of Spruce-fir Natural Forests in Changbai Mountain[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(02):169-174.
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 长白山天然云冷杉异龄林林分结构动态变化研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第27卷
期数:
2012年02期
页码:
169-174
栏目:
出版日期:
2012-03-30

文章信息/Info

Title:
 Dynamic Change of Spruce-fir Natural Forests in Changbai Mountain
文章编号:
1001-7461(2012)02-0169-06
作者:
 宁杨翠; 郑小贤; 蒋桂娟; 杜燕; 罗梅
 (北京林业大学，北京 100083)
Author(s):
 NING Yang-cui;  ZHENG Xiao-xian;  JIANG Gui-juan;  DU Yan;  LUO Mei
 (Beijing Forestry University,Beijing 100083, China)
关键词:
 ; 云冷杉林; 结构特征; 动态变化
Keywords:
 ; spruce-fir natural forest;  structure character;  change
分类号:
S791.06
文献标志码:
A
摘要:
 以云冷杉针阔混交林为研究对象，利用固定样地11次22 a的调查数据，研究其林分结构变化，分析林分株数密度、每公顷胸高断面积、树种组成、直径分布、林分年龄、新增木与枯死木以及幼树更新动态变化特征。结果表明：林分林木株数及每公顷胸高断面积变动幅度较小，分别增加了2.96%和3.78%；林分针阔比例一直稳定在5∶5；样地林木直径分布呈倒J型曲线；枯死木与新增木主要集中在杂木与云杉2个树种，枯死木主要集中在小径级6~10 cm、10~20 cm，枯死木株数随着径级增大而减少；更新苗株数总体减少了50%，而更新的主要树种冷杉、红松、云杉没有变化；林分平均年龄为78.4 a，林木年龄在15~197 a，跨度很大，各树种年龄由大到小依次为红松＞冷杉＞椴树＞杂木＞云杉。

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