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以皆伐后长白山红松阔叶林4个不同演替阶段的林分为对象,分析其群落和优势树种的变化特征.结果表明:在长白山红松阔叶林不同演替阶段中,乔木树种的丰富度、Shannon多样性和Simpson优势度变化较小,多度和均匀度变化较大.随着演替的进程,群落的优势树种组成发生变化,种数逐渐减少,优势种的胸高断面积加和和最大重要值逐渐增加,说明不同演替阶段群落的优势种地位不断提高.长白山红松阔叶林的演替过程是白桦、山杨、黄檗、春榆等阳性或半阴性树种不断减少,而紫椴、水曲柳、红松、色木槭等阴性树种不断增加的过程.
The results showed that in the different succession stages of Pinus koraiensis broad-leaved forest in Changbai Mountain, the tree species of Pinus koraiensis broad-leaved forest in Changbai Mountain were different in four succession stages, The Shannon diversity and Simpson dominance changed little, and the abundance and evenness varied greatly.With the succession process, the dominant tree species composition changed and the species number decreased gradually. The increasing sum and the largest important value gradually increased, indicating that the dominant species in different successional stages of the community continue to improve.Pubuniate Korean pine broad-leaved forest in Changbai Mountain, the succession process is white birch, aspen, yellow barberry, spring elm and other positive or semi-negative species decreased , While the Tilia amurensis, Ash, pine, Maple and other negative tree species increasing process.