碩士 / 國立臺灣大學 / 環境工程學研究所 / 90 / The understanding of the water quality and ecological systems in reservoirs has made significant progress in recent decades. In lake water, algae suffer the impact of water quality variation directly and can be seen as an ecological indicator. In this study, a population dynamic model of phytoplankton in Feitsui Reservoir was established, in which the growth limiting factors of phytoplankton such as temperature, light intensity, and limiting nutrient concentration were considered. The model was used to simulate the dynamic responses of different species of phytoplankton, Microcystis aeruginosa Kutz., Aphanocapsa delicatissima, and others, simultaneously. The algal growth and death coefficients were calibrated with the field data in 2000 and then were verified with the data in 2001.
The results show that the simulation of the population of the total algae is much better than the simulation for more than one species of phytoplankton simultaneously. The lack of accurate coefficients for algal growth and loss processes such as death, grazing and sedimentation for the phytoplankton species in Feitsui Reservoir may cause those deviations of model prediction. On the other hands, the peak of Microcystis aeruginosa Kutz. in the summer can not be described well may be due to some other environmental factors, for example, concentration of nitrogen and water level, that the model did not considered.
| Identifer | oai:union.ndltd.org:TW/090NTU00515010 |
| Date | January 2002 |
| Creators | 廖文蓓 |
| Contributors | 吳先琪 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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