本研究針對高雄彌陀地區之草本植群，進行物種分佈及組成之調查。本研究以抽取樣區法總共設立了 206 個樣區，共記錄維管束植物 32 科 102 屬 140 種。利用非計量多向度度量法、雙向指標種分析、列表比較法、忠誠度及概要表分析等方法進行植群分類，並以判別分析檢視分類的效果。在分類系統上，低階層採用 Braun-Blanquet 學派之植相分類法，高階層以形相分類法來建立正式的分類系統。在植相分類法中，群叢為基本單元，且其可依照物種組成向上進行合併，形成群團。研究結果在高層級分類系統上可辨識出 1 個群系綱，2 個群系，低層級分類系統上可辨識出 4 個群團，6 個群叢:
I. 下部山地-低地草本植群群系
A. 芒稷群團
a. 芒稷群叢
b. 假海馬齒群叢
c. 大黍群叢
B. 毛梗雙花草群團
d. 毛梗雙花草群叢
C. 高野黍群團
e. 高野黍群叢
II. 沙丘植群群系
D. 馬鞍藤群團
f. 馬鞍藤群叢

This study surveyed floristic composition and distribution of weed vegetation in Mituo County. 206 relevés were surveyed according to relevé method. A total of 140 species belonging to 32 families of the vascular plants were recorded. The weed
communities were classified with nonmetric multidimentional scaling, two-way indicator species analysis, tabular comparison method, fidelity and synoptic table analysis. Discriminate analysis was used to evaluate the distinctness of classification
unitsal vegetation classification system was made using Braun-Blanquet approach of floristic-sociological classification in lower levels and physiognomic-sociological classification in higher levels. In floristic-sociological classification, assication is the basic unit, and it should be grouped into higher units (alliance) by floristic composition. The results showed 1 formation class, 2 formations in phsiogonomic units, and 4 alliances, 6 associations in floristic units:
I. Lower montane-lowland weed vegetation formation
A. Echinochloa colona alliance
a. Echinochloa colona association
b. Trianthemum portulacastrum association
c. Panicum maximum association
B. Dichanthium aristatum alliance
d. Dichanthium aristatum association
C. Eriochloa procera alliance
e. Eriochloa procera association
II. Sand dune vegetation formation
D. Ipomoea pescaprae subsp. brasiliensis alliance
f. Ipomoea pescaprae subsp. brasiliensis association

學位論文審定書 .................................................................... I
致謝 ....................................................................................... II
中文摘要 .............................................................................. III
Abstract ............................................................................... IV
目錄 ....................................................................................... V
圖目錄 ................................................................................. VII
表目錄 ................................................................................ VIII
壹、前言 ............................................................................... 1
貳、材料與方法 ................................................................... 5
一、研究地區環境概況 ....................................................... 5
(一) 地理位置 ....................................................................... 5
(二) 地形與水文 ................................................................... 5
(三) 地質與土壤 ................................................................... 5
(四) 氣候 ............................................................................... 6
二、調查路線安排 ............................................................... 6
三、取樣方法 ....................................................................... 6
(一) 樣區設置 ....................................................................... 6
(二) 樣區植相調查 ............................................................... 7
(三) 環境因子量測與評估 ................................................... 7
四、植群分析之方法 ........................................................... 9
(一) 資料彙整及轉換 ........................................................... 9
(二) 數值分析、列表比較及評估列表比較法之效果 ..... 10
(三) 植群之分類層級及命名 ............................................. 15
參、結果 ............................................................................ 17
一、物種組成 .................................................................... 17
二、植群分析 .................................................................... 17
(一) 分類 ............................................................................. 17
(二) 列表比較法結果之評估 ............................................. 20
(三) 分佈序列 ..................................................................... 22
三、植群組成及結構 ........................................................ 23
肆、討論 ............................................................................ 27
一、大花咸豐草遍佈在高雄彌陀地區 ............................ 27
二、分化種的選擇 ............................................................ 27
三、如何歸屬有爭議的樣區 ............................................ 28
四、植物社會與環境之關係 ............................................ 28
五、檢視分類的效果 ........................................................ 30
六、分類系統 .................................................................... 31
伍、結論 ............................................................................ 33
陸、引用文獻 .................................................................... 35
附錄一 樣區座標及環境因子表 ....................................... 79
附錄二 植物名錄 ............................................................... 85

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