碩士 / 國立中央大學 / 土木工程研究所 / 90 / ABSTRACT
In this study the relationship between hydraulic conditions and ecological habitats is discussed and compared with habitat quantization assessment technology. Taking upstream of Wu-Chi River for example, geography of the reach in low flow is considered and the cross section of the stream is divided into several independent channels. HEC-RAS 3.0 is used to compute divided flow situation. Selecting Acrossocheilus paradoxus as the index fish species, the habitat is analyzed by RHABSIM 2.2. According to divided flow computation, we can show how flow change influences the fish habitats. The result shows that divided flow computation can take into account the characteristics of geography in the multiple channels reach. The estimation of fish habitat using divided flow computation can present actual habitat status. Finally an ecological instream flow requirement in the research reach is suggested.
| Identifer | oai:union.ndltd.org:TW/090NCU05015026 |
| Date | January 2002 |
| Creators | Cheng-Fong Yang, 楊承峰 |
| Contributors | Ray-shyan Wu, 吳瑞賢 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 96 |
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