摘要
森林群落演替与物种共存一直是生态学研究的核心问题。Watt[47]对英国温带栎林的研究发现,天然林群落是一个由处于不同发育阶段的小斑块构成的镶嵌体。在对自然界普遍的'同质化'认识的时代,这个思想没有引起足够的重视。几十年来,由于没能正确对待森林更新和演替的初始条件,对森林的了解受到限制。 1 森林动态基本理论 1.1 群落演替平衡论关于群落演替存在着两种观点,即平衡论和非平衡论。Clements(1921)提出的演替理论认为,在自然环境和生物资源长期保持不变的前题下。
Natural disturbance is a major force for forest community development. Thecanopy gap dynamics of forest disturbed will go through gap phase, building phase and mature phase. After the basic theory of forest dynamics and the natural disturbance regime including intensity and frequency, and its geographic difference are discussed, the forest canopy dynamics from gap formation to gap closure together with the size and form of gap and the environment and resources changing are reviewed.
出处
《生态学杂志》
CAS
CSCD
北大核心
1996年第3期43-49,共7页
Chinese Journal of Ecology
关键词
森林生态学
森林动态
林冠空隙
自然干扰
natural disturbance, forest dynamics, formation and closure of canopy gap, size and form of gap, environment heterogeneity.
