- 期刊
- OpenAccess
Modeling Planktonic Dynamics in a Subalpine Lake in Taiwan
台灣亞高山湖泊浮游性動力之模擬
摘要
The subalpine lakes in Taiwan possess vital freshwater ecosystems. These lakes play an important role in subalpine ecosystems and provide many ecosystem services for human society, including water supply; regulation of climate and carbon storage; habitat for wildlife; and the promotion of many values, such as aesthetics, culture, education, and so on. However, research on subalpine lakes in Taiwan mainly focuses on basic measurements to gather data. A limited number of numerical models have been developed to explore related research on the simulation of aquatic ecosystems in subalpine lakes. To better understand the interaction between the hydrodynamics and ecosystems of a subalpine lake, this study developed and built a three-dimensional model of hydrodynamics and water quality/ecology in the Yuan-Yang Lake (YYL). The collected data, such as water depth, water temperature, water quality, and plankton, were utilized to validate the model. The results indicated that the three-dimensional hydrodynamic and water quality-ecological model, namely SCHISM-PLANKTON, accurately reproduced the variations in water depth, water temperature, water quality, and planktonic biomass. Sensitivity analysis revealed that phytoplankton biomass was significantly affected by the basal metabolic rate of phytoplankton, while zooplankton biomass was most influenced by the basal metabolic rate of zooplankton. The planktonic biomass of YYL was greatly affected by changes in inflow discharge.
並列摘要
台灣的亞高山湖泊為重要的淡水生態系統，這些湖泊在亞高山湖泊中扮演重要角色並提供許多人類社會的生態系統服務，包括水源供應、氣候調節與碳儲存、野生動物的棲息地、及提供許多價值如美觀、文化、教育等。無論如何，台灣亞高山湖泊的研究主要著重於基本資料的收集，發展數值模式應用於亞高山湖泊水生生態的研究卻仍有限。為充分瞭解亞高山湖泊水動力與水生態間之關聯性，本研究發展並建置鴛鴦湖三維水動力與水質／生態模式，於湖泊收集的資料有水深、水溫、水質及浮游性動植物，用以驗證模式。結果顯示三維水動力與水質／生態模式（簡稱SCHISM-PLANKTON）可精確地模擬水深、水溫、水質及浮游性動植物生物量。敏感度分析顯示浮游植物生物量主要受到浮游植物基礎代謝率的影響；而浮游動物生物量主要受到浮游動物基礎代謝率的控制。鴛鴦湖浮游動植物生物量亦受到入流量改變的極大影響。
延伸閱讀
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