| 摘要: | 本研究於海拔963-1626m處設29個樣區，觀測6個環境因子及調查植物組成以分析石可見山植群，應用雙向指標種分析植群類型，應用降趨對應分析及典型對應分析樣區或物種與環境之相關性。結果顯示海拔高度、坡度及直射光空域爲影響本區植群型分佈與物種組成之主要環境因子。本區維管束植物共有189種，其中蕨類植物有31種，雙子葉植物有137種，單子葉植物有21種。其中稀有植物有8種。本區之森林植群區分爲薯豆－錐果樑型、臺灣杜鵑型、樟葉槭－阿里山千金榆型、三斗石櫟型等4種植群型。
The purpose of the study is to analyze on the vegetation in Shih-Ko-Chieh-Shan area. Total of 29 plots, ranging 963-1626 m, along with 6 environmental factors in each plot were sampled for study. Using Detrended Correspondence Analysis (DCA) and Two-Way-Indicator Species Analysis (TWINSPAN), Vegetation in this area could be grouped into 4 types: (1)Elaeocarpus japonicus-Cyclobalanopsis longinux type, (2) Rhododendron formosanum type, (3) Acer albopurpurascens-Carpinus kawakamii type, and (4) Lithocarpus hancei type. Environmental factors like altitude, slope and direct light sky space were the major controlling factors affecting vegetation distribution. Floristic results also showed that 189 vascular species, including 31 Pteridophytes, 137 Dicotyledons, 21 Monocotyledons and 8 rare species were recorded. |
