生物入侵及其对生态安全的影响研究

对生物入侵的概念、入侵途径、影响入侵的因素及其对生态安全的影响等方面进行了阐述。生物入侵通过自然途径或人为途径进入本地生态系统,造成对当地生态安全的影响。这种入侵主要受自然环境因素和社会环境因素的影响。另外,全球变化如气候、酸雨、氮素沉积等,对生物入侵也会产生影响。本文主要从生态环境、国民经济和社会发展三个层面研究生物入侵对生态安全的影响,并探讨了其防治管理措施。

A study on the biological invasion and its impact on ecological security

The idea of biological invasion, the invasion pathways, the factor influencing invasion and the influence of invasion on ecological security are mentioned. Biological invasion enters a new ecosystem with or without human-facilitating, and then establish in the ecosystem. The invasion can influence local ecological security. The invasion is mainly affected by the natural environment and the social environment. In addition,some other global problems are also relevant to biological invasion,including climate,acid rain and nitrogen sedimentation. The influence of biological invasion on ecological security was studied from the following three aspects: ecological environment, national economy, social development, and its prevention and cure measures were probed into in this paper.