藻类生态系统的随机稳定性研究  

Research on the Stochastic Stability of the Algae Ecosystem

作　　者：岳明[1] 李会民[2] 王洪礼[2] 刘连君 

机构地区：[1]天津大学管理学院,天津300072 [2]天津大学机械工程学院,天津300072 [3]中国石油集团海洋工程有限公司海工事业部,山东青岛266555

出　　处：《海洋技术》2008年第1期74-76,共3页Ocean Technology

基　　金：国家自然科学基金资助项目(10472077)

摘　　要：为了研究随机干扰因素与藻类生态系统稳定性之间的相互关系,运用随机非线性理论建立了藻类—营养盐的随机非线性动力学模型,采用随机平均法和奇异边界理论对模型的稳定性进行了分析,结果表明随机因素对稳定性的影响很大。随机因素可以使系统稳定性发生质的变化。For the sake of researching the relationship between the random disturbance factor and stability of the algae ecosystem, the stochastic nonlinear N-G model of the algae-nutrient salt was established by using stochastic nonlinear model theory. The stability of the model is analyzed by using stochastic average method and singular boundary theory. The result shows that the influence of stochastic factor on the stability of the model can not be ignored. The stability of the system can be changed by the stochastic factor.

关 键 词：藻类生态系统 随机稳定性 

分 类 号：O322[理学—一般力学与力学基础]