中文摘要：

污染物种进入异地后，能否着生成灾，不仅与其生物属性和着生地的生态环境有关，还与相关民族文化运行的后果有关联。民族文化与生态系统在耦合运行中会出现偏离性、错置性和代偿性三类生态位空缺，从而成为污染物种攻击的软肋。本文通过田野点的观察分析证明，这些地区的污染物种成灾，都是在上述三类生态位空缺点上着生滋蔓的后果。因此，我们只要堵住因民族文化运行而导致的三类生态位空缺，就能摧毁污染物种着生的“温床”，就能以最小的代价高效控制污染物种引发的灾变。

英文摘要：

Whether the polluted species can survive and cause calamity after they enter an alien place is not only related to its biological attributes and the ecological environment, but also to the consequence of the relevant national cultural operation. National culture and ecosystem will present three kinds of ecological location vacan- cy： deviating, replacing and compensating when they are operating. Thus they will be attacked by the polluted species. Through the fieldwork, we found that the polluted species in these districts had caused disaster, because of the consequence of shortcoming of the three kinds of ecological location described above. Therefore, if we can stop the three kinds of ecological location vacancy caused by the operation of national culture, we can destroy the ＂hotbed＂ for the polluted species, and prevent the pollution calamity high -efficiently with minimum cost.