水层生态系统动力学模式参数的敏感性分析

通过生态动力学模式参数的敏感性试验，比较详细地讨论了模拟结果对影响因子的敏感性。模式在温度、辐射和透明度等实际观测资料的强迫下，模拟了１９８２年５月至１９８３年５月渤海水层生态系统的年变化。分析表明，浮游植物的最大生长率、海水的消光系数、浮游动物对浮游植物的最大捕食率、捕食效率和碎屑的再矿化率是影响渤海水层生态系统年循环的主要因子。

Sensitive Analysis of the Parameters of a Pelagic Ecosystem Dynamic Model

Based on the sensitivity tests of the parameters of an ecosystem dynamic model, the sensitivity of the model results to the parameters is discussed. Forced by the observational data (incident radiation, water temperature and transparency) from May 1982 to May 1983, the annual changes of the pelagic ecosystem in the Bohai Sea are studied. The sensitivity tests indicate that the maximum nutrient uptake rate, maximum grazing rate of zooplankton on phytoplankton and the constant for grazing efficiency (Ivlev constant) are the most important factors that greatly affect the values of state variables and their annual cycles in the Bohai Sea.