基于多因子影响特性一体化的亚热带水库水华藻类种群生长动态演化机制研究

At present, China's numerous reservoirs have been in the process of eutrophication, the algal bloom problem caused by eutrophication has become one of the increasingly serious water environmental problems. This project mainly focuses on the growth dynamic evolution problem of blooming algae population and researches blooming algae population from subtropical reservoirs. Using the integrated approach of algae growth simulation experiment、algae growth model and dynamical simulation, the effected functional pedigree concept of key ecological-environmental factors will be proposed, the joint-drived mechanism of key ecological-environmental factors effected characteristics in the process of algae population growth dynamic evolution will be explored, the algae growth dynamical models based on the integration of multi-factor effected characteristics will be established, and the growth dynamic evolution mechanism of algae population will be probed . The project is to be expected to provide a set of the construction technology、solving algorithms and analytical methods of algae growth dynamical models based on the integration of multi-factor effected characteristics, and establish the certain characteristics growth dynamic evolution mechanism of algae population. The findings of the project have important significance for illustrating the effect-drived mechanism of key ecological-environmental factors in the process of algae population growth dynamic evolution, and revealing the growth diversification law of algae population in the actual aquatic ecosystems, and can provide new ideas and new methods for resolving the much-needed key problems about the prediction and warning of algal blooms in subtropical reservoirs.

目前，我国众多水库已处于水体富营养化过程中，水体富营养化引起的藻类水华问题已成为日趋严重的水环境问题之一。本项目针对水华藻类种群生长动态演化问题，以亚热带水库水华藻类种群为研究对象，采用藻类生长模拟试验、藻类生长模型和动力学模拟相结合的方法，提出关键生态环境因子“影响功能谱系”的概念，探索关键生态环境因子在藻类种群生长动态演化过程中的影响特性一体化协同驱动机制，建立面向多因子影响特性一体化的藻类生长动力学新模型，探究藻类种群生长动态演化机制。项目预期将提出一套面向多因子影响特性一体化的藻类生长动力学模型的构建技术、求解算法和分析方法，建立起具有一定特性的藻类种群生长动态演化机制。项目研究成果对阐明生态环境因子在藻类种群生长动态演化过程中的影响驱动机理，揭示藻类种群在实际水生生态系统中的生长变化规律具有重要意义，为解决亚热带水库藻类水华预测预警中亟需的关键难题提供了新思路和新方法

本项目针对水华藻类种群生长动态演化问题，以亚热带水库水华藻类种群为研究对象。首先，依据2016年-2019年吴家园水库实际监测数据，提出了关键生态环境因子“驱动功能谱”与“协同相关谱”的概念，探索了关键生态环境因子在藻类种群生长动态演化过程中的影响权重相关性与协同驱动机制。其次，构建了几类藻类种群生长动态模型，研究了模型的复杂动力学性态及其演化规律，探究藻类种群生长动态演化机制。最后，提出了一套面向多因子影响特性一体化的藻类生长动力学模型的构建技术、求解算法和分析方法，建立起具有一定特性的藻类种群生长动态演化机制。研究成果对阐明关键生态环境因子在藻类种群生长演化过程中的影响驱动机理和揭示藻类种群在实际水生生态系统中的生长变化规律具有重要意义，为解决亚热带水库藻类水华预测预警中亟需的关键难题提供了新思路和新方法。