碩士 / 國立中興大學 / 生命科學系所 / 98 / Typhoons bring abundant rainfall in Taiwan, it is also an important disturbance factor in Cijiawan Stream basin. Periphyton is the primary producer, it also provides food for aquatic insects and fishes in this region. This study build numeral models to describe the relationships between periphyton biomass and environment factors for quantifying the effects of discharge and biomass, and probe into the distributions of periphyton in this region.
There is a distinct dynamics of periphyton on different phases and in different streams correlates with different growth rate and detachment rate. When flooding, periphyton is detached from stones because the bed moved by flood; after flood, algal biomass accumulate quickly because discharge will help accumulation until exceeding initial biomass. There is positive correlation of temperature in the Cijiawan Stream basin for higher growth rate, except the Taoshan West Stream and the Gaoshan Stream due to their nature environment. In particular, the high algal biomass at the Yousheng stream in summer with intensive agriculture relate closely to the strong positive correlation of temperature. Therefore, the dynamics of periphyton is correlated with discharge, temperature, and aquatic insects in different streams of the Cijiawan Stream basin.
| Identifer | oai:union.ndltd.org:TW/098NCHU5105108 |
| Date | January 2010 |
| Creators | Zih-Yi Wu, 吳姿儀 |
| Contributors | Hsing-Juh Lin, Tsai, Jeng-Wei, 林幸助, 蔡正偉 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 85 |
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