Seminar第2224讲 具有化学剂量和环境波动的藻类增长动力学的建模分析

创建时间:  2021年11月30日 14:01  谭福平   浏览次数:   

报告题目 (Title):Modelling and analysis on the dynamics of algal growth with stoichiometric constraints and environmental fluctuations(具有化学剂量和环境波动的藻类增长动力学的建模分析)

报告人 (Speaker):原三领 教授(上海理工大学)

报告时间 (Time):2021年12月2日 (周四) 19:30

报告地点 (Place):腾讯会议 会议 ID:355-883-194

邀请人(Inviter):娄洁


报告摘要:Stoichiometric algal growth models are nonsmooth due to the Liebig's Law of Minimum and can generate new dynamics such as bistability for producer-grazer interactions. Environmental noises can be extremely important and change dynamical behaviors of a stoichiometric algal growth model. This talk involves two of our recent works on this respect. The first one is about the phenomena of noise-induced state switching between two stochastic attractors in a stochastically forced producer-grazer model. Namely, there is a frequent random hopping of phase trajectories between attracting basins of the attractors. The second is about the threshold dynamics in a stochastic algal growth model with the explicit incorporation of season-dependent light and nutrient availability. We also explore the effective way to inhibit algal blooms. The obtained results indicate that compared with removing algae periodically, blocking nutrient input from rivers constantly seems to be a more effective way to inhibit algal blooms with or without considering the environmental fluctuations, and the minimum blocking rate for successful inhibition of the stochastic system should be larger than the deterministic one.

上一条:Conference Report: "2021 China-Korea-USA International Conference on Matrix Theory with Applications" and "The 6th International Conference on Matrix Inequalities and Matrix Equations"

下一条:Seminar第2221讲 Asymmetric/symmetric error correcting codes of limited magnitude

CopyRight © Shanghai University    沪ICP备09014157   Address : 99 Shangda Road, BaoShan District, Shanghai.(traffic)   Zip Code : 200444   Tel.
Technical Support : Information Technology Office of Shanghai University   Contact Us