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題 名 | 雪山主峰東線步道維管束植物生活型之研究=Studies on the Life Form of Vascular Plants along the East Trail of Xue Mountain |
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作 者 | 鄭婷文; 曾喜育; 邱清安; 劉思謙; 王秋美; 曾彥學; | 書刊名 | 國家公園學報 |
卷 期 | 22:1 2012.03[民101.03] |
頁 次 | 頁41-51 |
分類號 | 378 |
關鍵詞 | 植物生活型; 蕨類商數; 植群帶; 雪山; 雪霸國家公園; Plant life-form; Pteridophyte-quotient; Vegetation zone; Xue Mountain; Shei-Pa National Park; |
語 文 | 中文(Chinese) |
中文摘要 | [摘要] 本研究針對雪霸國家公園雪山主峰東線步道沿途之維管束植物進行調查,並將研究區域依Su (1984)提出的臺灣植群帶劃分,沿海拔梯度向上依序為海拔2,140-2,510 m (櫟林帶上層)、海拔2,510-3,100 m (鐵杉雲杉林帶)、海拔3,100-3,600 m (冷杉林帶)及海拔3,600-3,886 m (高山植群帶)等4個路段,進行不同海拔梯度的植物生活型分析比較。共記錄維管束植物88科221屬399種,依Raunkiaer (1983)植物生活型分析,本研究區植物生活型比例以半地中植物54.7%最高,其他依序為挺空植物23.1%、地表植物10.8%、地中植物8.6%及一年生種子植物2.8%。探討植物生活型與海拔之關係,結果顯示挺空植物隨著海拔上升,比例有下降之趨勢,依序為31.8% (櫟林帶上層)、31.5% (鐵杉雲杉林帶)、11.0% (冷杉林帶)及5.5% (高山植群帶);半地中植物之比例隨著海拔上升,有上升之趨勢,依序為47.9% (櫟林帶上層)、40.8% (鐵杉雲杉林帶)、66.3% (冷杉林帶)及72.5% (高山植群帶);主要是因為隨著海拔上升、溫度下降,使得植物生活型之組成有所改變。蕨類商數隨海拔梯度降低,數值呈現波動,依序為3.02 (高山植群帶)、4.60 (冷杉林帶)、2.69 (鐵杉雲杉林帶)及4.04 (櫟林帶上層),數值受到調查的總物種與蕨類之數量影響,亦與生育地之環境及其多樣性有所關聯。 |
英文摘要 | ABSTRACT The objective of this study was to analyze the flora of the east trail of Xue Mountain based on the resistance and adaptability of plants and the protection of survival buds. Based on Su’s (1984) project vegetation zones in Taiwan, the study area was divided into four parts to analyze and compare plant life-form along different altitude gradients. The flora comprised 88 families, 221 genera, and 399 species. The plant life-forms, according to the Raunkiaer system, were 54.7% hemicryptophytes, 23.1% phanerophytes, 10.8% chamaephytes, 8.6% cryptophytes, and 2.8% therophytes.The relationship between plant life-form and altitude distribution was that the proportion of phanerophytes decreased with increasing altitude. The Abies zone, Quercus upper zone, Tsuga-Picea zone, and alpine vegetation zone consisted of 31.8%, 31.5%, 11.0% and 5.5%, respectively. The distribution of hemicryptophytes, on the other hand, increased with increasing altitude and consisting of 47.9% in the Quercus upper zone, 40.8% in the Tsuga-Picea zone, 66.3% in the Abies zone, and 72.5% in the alpine vegetation zone. Precipitation increased and temperature decreased along the altitude gradient. These two are major factors controlling plant life-form composition. The highest pteridophyte-quotient was 4.60 in the Abies zone, and the lowest pteridophyte-quotient was 2.69 in the Tsuga-Picea zone. These quotients were determined by the number of species and the population of pteridophytes, as well as the environment and topographic complexity of the habitat. |
本系統中英文摘要資訊取自各篇刊載內容。