https://scholars.lib.ntu.edu.tw/handle/123456789/347189
標題: | Identification of physical parameters controlling the dominance of algal species in a subtropical reservoir | 關鍵字: | Environmental factors; Eutrophication; Feitsui reservoir; Phytoplankton; Temperature gradient; Vertical mixing | 公開日期: | 2009 | 卷: | 60 | 期: | 7 | 起(迄)頁: | 1779-1786 | 來源出版物: | Water Science and Technology | 摘要: | Eutrophication is a serious problem of water resource management in Taiwan. The occurrence of annoying algal species as well as abnormally abundant algal mass threatens the quality of water supply. The growth and decline of a specific phytoplankton species are affected by environmental factors, including light, nutrients, temperature, etc. There have been many investigations on the effects of individual factors on the abundance and composition of algal populations. However, many analyses on the effects of environmental factors, especially the concentration of nutrients, on phytoplankton failed to identify the controlling factors on the dynamic change of the phytoplankton species. This study used statistical methods to isolate the effect of seasons on the phytoplankton growth and searched for the relationships between the nutrient concentrations and the abundance of different algal species in Feitsui Reservoir based on the data obtained from 1995 to 2003. we found that the dynamic change of dominance of some species of phytoplankton was strongly related to the seasonal factors. The controlling factors of the survival of an algal species were the settling and mobility of the phytoplankton, the mixing depth and the vertical mixing strength of the water bodies. According to our preliminary findings, the influence of physical factors, varying seasonally, outweighs the influence of nutrients on the algal species composition in Feitsui Reservoir in Taiwan. © IWA Publishing 2009. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-73349089337&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/347189 |
DOI: | 10.2166/wst.2009.541 | SDG/關鍵字: | Algal populations; Algal species; Concentration of; Controlling factors; Dynamic changes; Environmental factors; Individual factors; Nutrient concentrations; Physical factors; Physical parameters; Phytoplankton growth; Phytoplankton species; Quality of water; Seasonal factors; Temperature gradient; Vertical mixing; Waterbodies; Waterresource management; Dynamics; Eutrophication; Mixing; Nutrients; Phytoplankton; Reservoirs (water); Thermal gradients; Water management; Water quality; Water supply; Algae control; abundance; algal bloom; dominance; environmental factor; eutrophication; growth rate; phytoplankton; survival; temperature gradient; vertical mixing; water management; water quality; water resource; water supply; algal community; article; environmental factor; eutrophication; nutrient concentration; phytoplankton; temperature measurement; water supply; alga; classification; ecosystem; environmental monitoring; standard; Taiwan; time; tropic climate; water supply; Feitsui Reservoir; Taiwan; Algae; Ecosystem; Environmental Monitoring; Taiwan; Time Factors; Tropical Climate; Water Supply |
顯示於: | 環境工程學研究所 |
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