五鹿山国家级自然保护区森林群落演替分析

植物群落演替分析对植被恢复,森林管理等有重要的意义。以空间代替时间的方法,搜集数据,运用TWINSPAN和DCA进行分析。结果表明:五鹿山植物群落的演替系列:酸枣灌丛→荆条灌丛→黄刺玫灌丛→白皮松+侧柏林→白皮松林→油松林→辽东栎林;虎榛子灌丛→茶条槭灌丛→华北落叶松林→白桦林。这可以作为五鹿山植物群落演替的模型。在演替进程中物种的结构、组成以及生活型变化显著。使用六个指数来分析演替过程中物种的异质性、均匀度和丰富度变化。随着演替的进行,物种异质性、丰富度均有所增加,均匀度逐渐降低。

Succession analysis of forest communities in Wulu Mountain National Nature Reserve

Succession analysis of plant community has great significance on vegetation restoration and forest management.It was analyzed by the method of space instead of time,collecting data and using the quantitative classification method(TWINSPAN) and the ordination technique(DCA).The results of the succession series of forest communities in Wulu Mountain were as follows:form.Zizyphus jujube var.spinosa→form.Vitex negundo var.heteophylla→form.Rosa xanthina→form.Pinus bungeana+Platycladus orientalis→form.Pinus bungeana→form.Pinus tabulaeformis→form.Quercus liaotungensis;form.Ostryopsis davidiana→form.Acer ginnala→form.Larix principis-rupprechtii→form.Betla platyphylla.That could be used as plant community succession model of Wulu Mountain.Species structure,composition and life-forms changed significantly in the succession process.The succession of species heterogeneity,evenness and richness change were analyzed with six indexes.As succession proceeds,species heterogeneity and richness are increasing,but the evenness is reducing gradually.