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林业科学 ›› 1998, Vol. 34 ›› Issue (1): 90-98.

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林隙(GAP)干扰研究进展

臧润国1,徐化成2   

  1. 1. 中国林业科学研究院森林环境研究所 北京 100091
    2. 北京林业大学森林资源与环境学院 北京 100083
  • 收稿日期:1996-04-23 出版日期:1998-01-25 发布日期:1998-01-25

ADVANCES IN FOREST GAP DISTURBANCE RESEARCH

Runguo Zang1,Huacheng Xu2   

  1. 1. The Reasearch Institute of Forest Ecology and Environment, CAF Beijing 100091
    2. College of Forest Resources & Environment, BFU Beijing 100083
  • Received:1996-04-23 Online:1998-01-25 Published:1998-01-25

摘要:

本文系统地介绍了森林循环的理论、自然干扰的概念、林隙的一般特征和林隙干扰的时空格局。干扰是森林循环的驱动力,干扰形成的林隙是森林循环的起点。林隙的大小、形成年龄、形成方式以及形成木的特征是研究林隙特征的重要参数,虽然不同森林群落中,林隙干扰的频率和程度及其时空变化规律不同,但大多数森林的年平均干扰率是在1%左右。不同的森林类型中,大、小型干扰的比例不同。小型林隙干扰与大型灾难性干扰在不同时空条件下的组合,就形成了不同森林景观的时空变化格局。

关键词: 林隙, 林隙动态, 干扰生态学, 森林动态, 森林循环, 景观格局

Abstract:

This paper reviewed the theory of forest cycle, the concepts of natural disturbance, characteristics of forest gaps and the spatial/temporal patterns of gap disturbance. Disturbane is a driving force of forest growth cycle, and gap phase, caused by disturbance, is the initiating point of the cycle. The following are very important parameters in the studies of gap characteristics: gap size, gap age, manners of formation and gap makers. Although gap disturbance regimes are different in different forest communities, the average annual disturbance frequency is about 1% in most forest types. For different forest types, the preportions of small scale and large scale disturbances are different. The combination of small scale gap disturbance and large scale catastrophic disturbance in different conditions forms the basis of landscape pattern.

Key words: Forest gap, Gap dynamics, Disturbance ecology, Forest dynamics, Forest cycle, Landscape pattern