外来入侵种的危害与防治对策

The Harmful Effects and Control Measures of Alien and Invasive Plants

外来入侵种对当地的自然生态系统结构和功能以及生物多样性都有着深远的影响,而且可能对地方的生态环境和经济造成严重危害。四川已经成为遭受外来入侵种威胁的省份之一,全省现有20多个外来入侵种。为了防止外来入侵种的泛滥,应当建立外来物种的引入评价机制,慎重进行有意引种;加强口岸管理,防止外来入侵种通过贸易途径无意引入,同时采取措施控制已经产生危害的外来入侵种。

There are far-reaching effects of alien and invasive species on the structure and function as well as species diversity of the local natural ecosystem.In addition, they may result in severe harm to the local environment and economy. With more than 20 alien and invasive plants present, Sichuan has become one of those that are imperiled by those alien species. In order to prevent the overspreading of invasive species, an assessing mechanism of introducing alien species should be established and care should be taken when making intentional introductions. Port management should be intensified to check unintentional importation of invasive species through commodity trade. In the meantime, measures should be taken to control the species that have already done harm to the local economy and ecosystems.