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作 者 ：江洪

期 刊 ：植物生态学报 1994年 18卷 4期 页码：297-305

关键词：云冷杉林；植物群落；DCA分类；TWINSPAN分；

Keywords:Spruce and fir forest, Plant community, DCA classification, TWINSPAN classification, Characteristic s,

摘 要 ：本文应用DCA二维散点非等级制分类和TWINSPAN等级制分类的方法进行了四川西北部和甘肃南部云冷杉林的数量分类，共划分出15个群丛，分属于云杉、冷杉、高山栎和桦木四个群系，并分别讨论了各群丛的特征。用DCA二维散点的非等级制分类与TWINSPAN的等级制分类的方法对于云冷杉植物群落都产生了较好且一致的分类效果。通过TWINSPAN分类的研究，发现了对生境有指示意义的特征种和指示种，主要的植物种类有：圆叶菝契、网状小壁等(冷湿，指示藓类冷杉林和杜鹃冷杉林);小花拂子茅、箭炉樱等(冷旱，指示草类云杉林和箭竹云冷杉林)；槭树、铁杉、沛阳花等(暖湿，指示落阔冷杉林和灌木云杉林等)；罗氏异燕麦、华西矮卫茅、糙野青茅和狭叶柳兰等(暖旱，指示灌木云杉林和云冷杉疏林)。

Abstract:Based on a two-dimensional non-rank classification of two way indicative species analysis (TWlNSPAN), spruce and fir forest communities in Northwest Sichuan and South Gansu are divided into 15 associations belonging to 4 formations by using the DCA and TWlNSPAN classification methods.The dominant and indicator plant species are Smilax cyclophylla, Berberis dictyophylla (cold and moist, indicative of Moos-Abies forest and Rhododendron-Abies forest); Calamagrostis epigejos, Prunus lobulata (cold and dry, indicative of Calamagrostis Picea forest and Sinarundinar-Picea and Abies forest); Acer spp., Tsuga chinesis and Viburnum lobophyllum (warm and moist, indicative of Broad-leafed deciduous-Abies forest and Shrubland-Spruce forest); Helitotrichon boylei, Euvnymus przewlskii, Deyeuxia scacrescens and Chaemanerion angustifolium (warm and dry, indicative of Shrubland-Spruce forest and Spruce-Abies forest).

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