屏東縣北大武山區植群生態研究

Vegetation Ecology of Peitawushan in Pingtung County

葉慶龍(Ching-Long Yeh) ； 廖家宏(Jia-Hong Liao)

《中華林學季刊》 41卷2期 (2008/06) Pp. 165-179

https://doi.org/10.30064/QJCF.200806.0002

摘要

本研究旨在探討北大武山區植群型與環境之相關性。共設置35個0.05ha樣區，同時觀測8項環境因子，並紀錄598種維管束植物。經雙向指標種分析與降趨對應分析，將所有研究樣區分出3種植群型與4種亞型，分別為厚葉柃木－臺灣鐵杉型；假長葉楠－長葉木薑子型，此型再細分出無脈木犀－假長葉楠亞型、臺灣杜鵑亞型、瓊楠－豬腳楠亞型與臺灣厚距花－阿里山千金榆亞型及黃肉樹－燈稱花型。以典型對應分析探討植物社會與環境因子之相關性，結果以海拔、地形位置、坡度、含石率與冠層覆蓋度為影響植物社會變化之主要因子。

關鍵字

北大武山 ； 植群型 ； 雙向指標種分析 ； 降趨對應分析 ； 典型對應分析

並列摘要

The aims of this study were to investigate the vegetation types and the effects of environmental factors. Thirty-five plots each with 0.05 ha were laid and 8 environmental factors were recorded. There were 598 species of vascular plants. Three vegetation types and four subtypes were identified using detrended correspondence analysis (DCA) and two-way indicator species analysis (TWINSPAN). The first vegetation type was Eurya glaberrima-Tsuga chinensis var. formosana type. The second vegetation type was Machilus japonica-Litsea acuminata type which could be further subdivided into Osmanthus enervis-Machilus japonica subtype, Rhododendron formosanum subtype, Beilschmiedia erythrophloia-Machilus thunbergii subtype, and Pachycentria formosana-Carpinus kawakamii subtype. The third vegetation type was Litsea hypophaea-Ilex asprella type. Canonical correspondence analysis (CCA) indicated that altitude, topographic position, slope, stone and coverage of canopy made significant contribution to the variation of vegetation composition.

並列關鍵字

Peitawushan ； Vegetation type ； Two-way indicator species analysis TWINSPAN ； Detrended correspondence analysis DCA ； Canonical correspondence analysis CCA