摘要
通过样地调查,结合森林群落的多样性特征,采用M.Godron的稳定性测定方法,探讨了不同经营方式对辽东山区阔叶红松天然次生林生态系统稳定性的影响,研究表明:比较简单的群落,容易受到外来种的入侵,其整个群落的抗外界干扰力以及在干扰后自身的恢复能力自然要弱一些。然而,多样性最大的群落未必是稳定性最高的群落。基于该理论,认为实施动态择伐经营体系有利于该区域阔叶红松林生态系统稳定性的提高。
Through plot investigation, using M.Godron＇ s test method for stability and the basis ofbio-diversity indices, the stability of boadleaved Pinus koraiensis in Liaoning eastem mountains is discussed. Results were as the followings： a community that has a relatively simple structure is vulnerable to the invasion of alien species. Consequently it has an inferior resistance to outside interference. And it is not easy to return to the previous condition, On the other hand, community with most high bio-diversity may not be the steadiest community. Based on the theory, we can draw the conclusion that the moderate dynamic selective management can increase the stability;
出处
《辽宁林业科技》
2009年第3期13-16,共4页
Liaoning Forestry Science and Technology
关键词
阔叶红松林
多样性
稳定性
辽东山区
boadleaved Pinus koraiensis, bio-diversity
stability
Liaoning eastem mountains
