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.