人工诱导的阔叶红松林群落结构动态

Dynamics of Community Structure in Artificial Induced Broad-leaved Korean Pine Forests

利用长期定位观测及临时调查资料,分析了人工诱导的阔叶红松林群落的结构、生长动态。结果表明:人工诱导的阔叶红松林,经过20多年生长,已初步形成以红松为优势树种的针阔混交林。群落垂直层次明显,径级结构合理。物种丰富度、多样性指数在乔木层、灌木层和草本层中都好于红松纯林,有利于维持森林生态系统向多元化发展。人工诱导措施是天然次生林恢复针阔混交林的重要途径,通过种间关系的调整及抚育间伐技术等人工调控技术诱导的针阔混交林,林分结构合理,系统的稳定性增加。

An experiment was conducted to study the structure and growth dynamics of artificial induced broadleaved Pinus koraiensis forests using data from permanent experimental plots and temporary investigations. Result showed that coniferous and broadleaved mixed forests with visible vertical layers and reasonable diameter-class structure formed over more than 20 years of growth, in which P. koraiensis is the dominant species. The species richness and diversity index of the mixed forests in arbor, shrub and herb layers are higher than those of the pure stands, which is helpful to maintain ecosystem diversity. Artificial inducement is an important measure for restoring the coniferous and broadleaved mixed forest. The established forest by upper thinning, interspecies relationship adjustment and tending has reasonable structure and higher productivity, thereby the system stability is strengthened.