海水养殖池塘浮游植物碳的计算机模拟

Computer Simulation of the Phytoplankton Carbon in Mariculture Pond

应用光学显微镜法对实验系统浮游植物进行了野外定量研究,测定了系统中浮游植物的种类组成和生物碳素变动,为模型有效性验证提供了野外数据;根据Ecopath能量平衡模型原理建立了海水养殖池塘浮游植物碳的计算机模型,初步确定了包括15个参数的浮游植物模块参数库,通过单因子分析法进行参数敏感性检验,确定了3个敏感性参数,并利用野外实际测定数据进行了模型验证。模拟结果表明本模型成功模拟了海水养殖系统浮游植物碳变动。在建模过程中,光限制因子与水温为影响浮游植物碳的主要内源因素,浮游动物捕食作用为外源影响因素。

The species and the carbon of phytoplankton are studied in the intensive shrimp culture ecosystem with the use of the optical microscope,for provided the field data to the validation of the dynamical model of phytoplankton carbon.A computer model is built up according to the Ecopath model method.A module stock which consisted of 15 parameters is primarily established,and 3 sensitivity parameters are found by sensitivity analysis.The results show that the simulated data are in accordance with the field data of phytoplankton carbon well.In simulation,the factors of light limit and water temperature are the interior factors of model building,and the predation of zooplankton is the exterior ones.