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林业科学 ›› 2006, Vol. 42 ›› Issue (10): 1-5.doi: 10.11707/j.1001-7488.20061001

• 论文及研究报告 •    下一篇

人为干扰对长白山红松针阔叶混交林粗木质残体的影响

谷会岩1,2 代力民1 王顺忠1,3 于大炮1 周莉1,3   

  1. 1.中国科学院沈阳应用生态研究所,沈阳110016;2.东北林业大学林学院哈尔滨150040;3.中国科学院研究生院北京100039
  • 收稿日期:2005-06-06 修回日期:1900-01-01 出版日期:2006-10-25 发布日期:2006-10-25

Effect of Human Disturbance on Coarse Woody Debris in Korean Pine and Broad-Leaved Mixed Forest on Changbai Mountain

Gu Huiyan1,2,Dai Limin1,Wang Shunzhong1,3,Yu Dapao1,Zhou Li1,3   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences Shenyang 110016; 2. Forest College of Northeast Forestry University Harbin 150040; 3. Graduate School of Chinese Academy of Science Beijing 100039
  • Received:2005-06-06 Revised:1900-01-01 Online:2006-10-25 Published:2006-10-25

摘要:

研究人为干扰(森林采伐)对长白山红松针阔叶混交林(天然林和择伐林)粗木质残体的影响。结果表明天然林和择伐林的粗木质残体平均材积分别为78.88和41.7m3·hm-2;天然林粗木质残体大部分径级2~40cm,其中倒木、枯立木和伐桩分别占总材积的94%、5.8%和0.2%,择伐林粗木质残体大部分径级11~50cm,其中倒木、枯立木和伐桩分别占总材积的41%、4%和55%。天然林和择伐林粗木质残体的覆盖面积分别为376.2和189.3m2·hm-2;天然林和择伐林倒木腐烂级为E的倒木分别占33.5%和14%。择伐活动明显减少了森林倒木的数量。为促使采伐后的森林能维持原始林粗木质残体的结构特征,现行的森林管理措施应进行必要的调整。

关键词: 森林经营, 粗木质残体, 红松针阔叶混交林, 长白山

Abstract:

This study investigated the effects of human disturbance (selection cutting) on coarse woody debris (CWD) in Korean Pine and broad_leaved mixed forest on Changbai Mountain. The forests were classified into two categories according to disturbance history: natural forest and selection cutting forest. The average volumes of CWD were 78.88 m3·hm-2 in natural forest and 41.7 m3·hm-2 in selection cutting forest, respectively. In natural forest, 94% of the volume of CWD consisted of fallen logs, 5.8% of standing dead trees and 0.2% of cut stumps. Most of the volume of CWD belonged to 2~40 cm diameter class. In selection cutting forest, 55% of the volume of CWD consisted of cut stumps, 41% of fallen logs, 4% of stand standing dead tree, Most of the volume of CWD belonged to 11~50 cm diameter class. Covered areas of CWD in natural forest and selective cutting forest were 376.2 and 189.3 m2·hm-1 respectively. Percentage of fallen logs in E decay class of natural forest and selective cutting were 33^5% and 14% respectively. Selection cutting method reduced fallen logs considerably. To retain the natural forest characteristics of CWD, management strategy should be reconsidered in managing forest.

Key words: forest management, coarse woody debris(CWD), Korean Pine and broad-leaved mixed forest, Changbai Mountain