关键词: 铁, 铅, 宽叶香蒲, 铅积累, 湿地

Abstract: Species extinction is a system phenomenon, involving the interaction of processes and states. Population vulnerability analysis (PVA) is a new technique to predict the processes of species extinction by analyzing demorgraphic, environmental, genetic stochasticity and natural catastrophic effects on the population and its goal is to establish a minimum viable population.

Key words: Fe, Pb, Typha latifolia, Pb accumulation, wetland.