碩士 / 國立中興大學 / 生命科學院碩士在職專班 / 94 / The Mailiao and Haifong Areas accommodated No.6 Cracking Project are situated at the estuary of Chuoshui reiver at the northern end of Yunlin County. In this study, benthic algae were collected from the drainage canal of Mailiao Industrial Plant in April, June, July 2006. Three sample sites located at the drainage canal of east-southern water gate、the southern water gate 6 and the southern new Plant 7. The benthic algal composition, its diversity and GI index of those three collecting sites were compared. A total of 19 algal genera were indentified, including 2 genera of Cyanophyceae、6 genera of Chlorophyceae, 9 genera of Bacillariophyceae、2 genera of Euglenophyceae. In Apirl, the dominant algal genus of the east-southern water gate and the southern new Plant 7 were Oscillatoria. In the other two months, the dominant algal genera of the three sample sites were diatoms. The results revealed that the diatoms were the dominant algal genera of the drainage canal. In this study, the highest diatom biomass of those three months was in July, and 91.6% of its total biomass. The algal relative abundance of the east-southern water gate was the most abundance and its amount was up to 1.53×104 cells/cm2. The highest average GI was 10.87 at the east-southern water gate, the secondary was 5.84 at the southern water gate 6 and the lowest average GI is 2.07 at the southern new Plant 7. The GI indices were decreasing from upstream to downstream. During our sampling period for test on H’ diversity indices, the monthly statistics was below 2. Especially on April, the water quality was most polluted. The H’ diversity was below 0.53 (The lowest statistics number). For our sampling period in 3 difference sites, all statistics number was pointing out that, the southern new Plant 7 was lowest. That means'' the southern new Plant 7 is most polluted comparing within our sampling sites. In April, the amounts concentration of NO3‾and NO2‾ was 13.89 ppm which was higher than the amounts concentration in June and July, 0.48 ppm and 0.25 ppm, respectively. The highest PO4‾ concentration was 4.71 ppm in Aprl, the secondary was 2.61 ppm in June and the lowest was 2.29 ppm in July.
| Identifer | oai:union.ndltd.org:TW/094NCHU5105036 |
| Date | January 2006 |
| Creators | Yen-Hsiu Lai, 賴彥秀 |
| Contributors | Pei-Chung Chen, 陳伯中 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 47 |
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