| 摘要: |
| 运用质点、连续介质和状态变量等观点来描述海洋浮游生态系统，根据生物生命运动、生化反应、水动力学和物质守恒等基本规律，建立海洋浮游生态系统动力学的模型方程。推广地球流体力学的湍流二阶闭合理论，建立实用的雷诺平均生态系统动力学模型方程及其二阶相关项的闭合模型方程，将生态动力学状态变量的湍扩散参数化。本文还讨论了该模型与通常的N-P-Z-D模型的关系，提出了其适用范围。 |
| 关键词: 浮游生态系统 连续介质 动力学模型 |
| DOI： |
| 分类号: |
| 基金项目:国家海洋局青年基金资助项目，98304号 |
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| DEVELOPING A CONTINUOUS MEDIUM DYNAMICS MODEL FOR OCEAN PLANKTON ECOSYETEM |
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WAN Zhen-wen, YUAN Ye-li
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First Institute of Oceanography, State Oceanic Adminislration, Qingdao, 266003
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| Abstract: |
| Many ecosystem dynamics models have been given in these decades, but none was derived according to a few basic hypothesizes by logically reasoning. This paper instructively treated organism individuals as particles and organism colonies as continuous medium, divided complex ecosystems as a few variables, and regarded diverse ecological movement as processed that different substance forms of common trace element converted each other. A conceptual dynamics model for ocean plankton ecosystem, where items were expressed by math operators, was developed according to basic rules in organism movement, biochemistry reaction, hydrodynamics and mass conservation. The way to express math operators was discussed, then the conceptual model was rewritten as the math model on the premise that some common expressions of items in the models given by other authors were dependable. The idea of turbulent 2-order closure in geophysical fluid was put forward to evaluate diffusion parameter as exactly as possible. This paper tentatively gave ecosystem dynamics model by logically reasoning, and it bridged complex ecosystem with conventional view of people in fields of physics and math. |
| Key words: Ocean plankton ecosyetem, Continuous medium, Dynamics model |
