碩士 / 國立宜蘭大學 / 自然資源學系碩士班 / 95 / An objective that variations of vegetation and species diversity along altitude gradient were investigated forest community in north aspect of Heping north river. And show that variations of community of species abundances along altitude gradient.
35 plots of 600 m2 were surveyed from altitude 100 to 3,400 m, were sampled one at least to rise 100 m along the altitude gradient. The results show that there are 129 families, 331 genera, 582 vascular plants. 6 vegetation zones and 10 vegetation types were classified using TWINSPAN and DCA: Bischofia javanica‐Machilus japonica var. kusanoi type on Ficus‐Machilus zone; Engelhardia roxburghiana‐Castanopsis cuspidata var. carlesii type on Machilus‐Castanopsis zone; Rhododendron formosanum type and Pasania kawakamii‐Machilus thunbergii type on Quercus lower zone; Chamaecyparis obtusa var. formosana—Rhododendron formosanum type, Fagus hayatae type, Symplocos arisanensis‐Illicium anisatum type on Quercus upper zone; Tsuga chinensis var. formosana and Pinus taiwanensis type on Tsuga‐Picea zone; Abies kawakamii type on Abies zone. Ratio stone of soil, ratio of rock, soil pH, soil exchangeable Ca, and soil exchangeable Mg are more significant with altitude gradient using CCA. Species diversity of trees, herbaceous, epiphytes, lianas, that show peaked at the left along altitude gradient and vegetation zone. Species diversity of trees, shrubs, lianas, epiphytes were maximum at Machilus‐Castanopsis zone, while that of herbaceous was maximum at Quercus lower zone. β-diversity gradually turn over fast along vegetation zone, while slower in Quercus zone. Rank/abundance plot of Species abundance according to priority show log normal distribution, broken stick model, log normal distribution, log series distribution, geometric series distribution along altitude gradient. Represent that species complicated at vary environment to become alone speices at poor environment along altitude.
| Identifer | oai:union.ndltd.org:TW/095NIU07148005 |
| Date | January 2007 |
| Creators | Shu-Hua Hung, 洪淑華 |
| Contributors | Tze-Ying Chen, 陳子英 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 109 |
Page generated in 0.0047 seconds