外来植物入侵对生态安全的威胁

摘要

Exotic plant invasion is a part and parcel of the invasive species,and also one of the important factors threat-ening our country ecological security,which has caused great damage to the ecological environment and biodiversity, caused a huge loss to agroforestry,and threatened the ecological safety directly.Therefore,it is the top priority to strengthen the prevention and management of invasive species .This thesis is to introduce the invasion pathway of exotic plants and the threats to the ecological security,and put forward the control countermeasure of it.%外来植物入侵是外来物种入侵的组成部分，也是威胁我国生态安全的重要因素之一，它改变了原有的植物种群结构，给生态环境和生物多样性造成极大的破坏，也给农林业造成了巨大的损失，直接威胁到国家生态安全。因此，加强外来植物入侵的防范和管理已是当务之急。本文简要介绍了外来入侵植物的概念、入侵途径及危害现状，并对提出了外来植物入侵的防治对策。