1. Vegetation zones and 10 vegetation types were classified using TWINSPAN and DCA: Bischofia javanica‐Machilus japonica var. kusanoi type on Ficus‐Machilus zone; Engelhardia roxburghiana‐Castanopsis cuspidata var. carlesii type on Machilus‐Castanopsis zone; Rhododendron formosanum type and Pasania kawakamii‐Machilus thunbergii type on Quercus lower zone; Chamaecyparis obtusa var. formosana—Rhododendron formosanum type, Fagus hayatae type, Symplocos arisanensis‐Illicium anisatum type on Quercus upper zone; Tsuga chinensis var. formosana and Pinus taiwanensis type on Tsuga‐Picea zone; Abies kawakamii type on Abies zone.
经TWINSPAN分析及参考DCA结果，可将植物社会区分为6个植群带10个植群型，分别为榕楠林带的茄冬‐大叶楠型；楠槠林带的黄杞‐长尾尖叶槠型；栎林带下层的台湾杜鹃型、大叶石栎‐猪脚楠型；栎林带上层的台湾扁柏‐台湾杜鹃型、台湾水青冈型及阿里山灰木‐白花八角型；铁杉‐云杉林带的台湾铁杉型、台湾二叶松型；冷杉林带的台湾冷杉型。