外来入侵植物是指自然或人为地由原生态系统中引入到新生境的植物，会给新生境或其中的物种带来威胁。

Alien invasive plant is one that is introduced from original ecosystems to new ones by nature force or human activity, which endangers the new environment or native plant species.

youdao

外来入侵物种中热带来源与温带来源比例相当，人为引入导致的外来入侵植物高达39%。

The proportion of alien invasive species originating from the tropic zone was close to that from temperate regions. The proportion of alien invasive plants caused by intentional introduction was 39%.

youdao

外来入侵物种中热带来源与温带来源比例相当，人为引入导致的外来入侵植物高达39%。

The proportion of alien invasive species originating from the tropic zone was close to that from temperate regions. The proportion of alien invasive plants caused by intentional introduction was 39%.

youdao