宜蘭縣南部海岸植群調查

Study on Southern Ilan County Costal Vegetation

陳子英(Tze-Ying Chen) ； 楊暄慧(Xyu-Huei Yang)

《宜蘭技術學報》 9期生物資源專輯 (2002/12) Pp. 243-257

https://doi.org/10.6179/nit.job.2002.09.34

摘要

本文以43個樣區，370種植物及6個環境因子進行降趨對應分析及雙向指標種分析法，結果顯示宜蘭縣南部海岸植群變異主要受地形位置、海拔高度、含石率及坡度等四個因子所影響，經雙向列表比較法比較結果，可將本區分為五型，其中一型並可分成二亞型：1.白肉榕－大葉楠型：1a.瓊楠－江某亞型，分布於中坡及溪谷；1b.金氏榕－樹杞亞型，分布於下坡；2.台灣赤楊－大葉溲疏型，分布於崩塌地早期植物社會；3.白茅－草海桐型；4.單花蟛蜞菊馬鞍藤型，分布於海口及沙灘交界；5.台灣蘆竹－花蓮澤蘭型，分布於濱海地區之崖壁。文中並與前人之植群型與演替類型進行討論。

關鍵字

宜蘭南部 ； 海岸植群 ； 降趨對應分析 ； 雙向指標種分析法

並列摘要

Multivariate analysis was conducted on 43 stands with 370 plant species and 6 environmental factors sampled from costal vegetation of south Ilan county. It was found that the major significant factors affecting the vegetation distribution were the terrain position, altitude, stoness and slope. Based on Detrended correspondence analysis and two way indicator species analysis to the vegetation could be classified into 6 types. as fllowed: 1.Ficus virgata-Machilus japonica var. kusanoi type: 1a. Beilschmiedia erythrophloia-Schefflera octophylla subtype 1b.Ficus ampeloas-Ardisia sieboldii subtype 2.Alnus formosana-Deutzia pulchra type 3.Imperata cylindrica var. major-Scaevola taccada type. 4. Wedelia prostrata var. prostrata-Ipomoea pes-caprae subsp. brasiliensis type. 5. Eupatorium hualienense-Arundo formosana type. Discussions were made with the past reserch of costal vegetation types in the same area and vegetation succession status were also compared

並列關鍵字

Southern Ilan county ； costal vegetation ； Detrended correspondence analysis ； Two way indicator species analysis