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扇平及南鳳山地區之植群分類及分佈序列

Ordination and Classification of Vegetation in San-ping and Nan-fen Shan Areas

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摘要


扇平及南鳳山地區位於老濃溪支流之濁口溪集水區內,為林業試驗所六龜分所轄區內之試驗地,本次調查總計設置42個樣區,樣區資料經運算後與其環境因子評估值以MEDIT程式輸入電腦,建立為樣區-樹種及樣區-環境因子原始矩陣,矩陣經降趨對應分析及梯度分析法予以處理,得知海拔高度及水分合成指數為影響本地區植群分佈的兩項主要因子,植群型的分類以列表比較法行之,可區分為五型,即山黃皮-九芎型(包含島榕-大葉楠和幹花榕-臺灣赤楠兩亞型),落葉榕-五掌楠-印度拷型,紅皮-水錦樹-臺灣栲型,小西氏楠-瓊楠型及變葉新木薑子-楊桐葉灰木-長尾栲型(包含小花鼠刺-黃杞和南嶺灰木和臺灣柃木-杏葉石櫟兩亞型),綜觀本地區中低海拔之山地植群帶劃分與中部山地相似,但主要樹種之組成差異甚大,此種差異與氣候及地理阻隔間的關係有待進一步探討。

關鍵字

扇平 南鳳山 六龜 植群分類 分佈序列

並列摘要


San-ping and Nan-fen Shan area, the forest land that belong to Liu-kuei Branch of Taiwan Forest Research Institude, are located at the watershed of Cho-kou Chi which is one of the tributaries of Lao-nong Chi in south Taiwan. Fourty-two samples and their enviromental factors were investigated, and program MEDIT was used to construct sample-species and sample-enviromental factors primary matrixes. Using DCA and Gradient analysis, vegetation of these areas were found correlating with altitude and synthetic water index, and according to tabular comparison, vegetation of these areas could be classified into five types as follows: 1. Murraya euchrestifolia-Lagerstroemia subcostata type (inclcluding Ficus virgata-Persea japonica subtype and Finn variegate-Syzygium formosanum subtype). 2. Ficus ruficaulis-Neolitsea konishii-Castanopsis indica type. 3. Styrax suberifolius-Wendlandia uvariifolia-Castanopsis formosana type. 4. Persea Konishii-Beilschmiedia erythrophloia type. 5. Neolitsea variabillima-Symplacos glomerata-Castanopsis carlesii type (including flea parviflora-Engelhardtia roxburghiana subtype and Symplocos pendula-Eurya hayatai-Lithocarpus amygdalifolius subtype). Vegetation zones of these areas are similar to those of the central mountain areas, but composition of dorminant trees are much different, more research on the climate variation and geographic isolation is needed for the interpretation of this phenomenon.

被引用紀錄


蕭清泉(2009)。曾文水庫上游集水區植群生態之研究〔碩士論文,國立屏東科技大學〕。華藝線上圖書館。https://doi.org/10.6346/NPUST.2009.00310

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