The initial packaging value system model was established, which set a foundation of dynamic study on packaging value. 建立了包装价值系统初始模型,为下一步对包装价值的动态研究打下基础。
Study of metapopulation dynamics is one of the most important subjects in modern conservation biology and ecology. 复合种群动态研究是当今保护生物学和生态学中最热门的课题之一。