摘要
对在广东境内出现的部分入侵物种作了简要介绍,分析了物种入侵带来的生态危害和经济损失,入侵物种的生态学特征、入侵途径与扩散机制,提出了相应的防治对策.统计分析表明,目前广东的外来物种数量在全国位居前列,这与广东地处沿海地区、经济贸易频繁有着密切联系.入侵物种具有繁殖力和适应性强等特征,并通过人为有意引种、无意带入或自然力量进行远距离传播扩散.对于外来入侵物种的防治,主要有物理、化学、生物、替代和综合防治等手段,加强立法和提高公众的防范意识是控制外来入侵物种危害的重要途径.
A brief introduction to some invasive alien species existing in Guangdong is given in this paper. The ecological damages and economic losses by invasive alien species, the ecological characteristics, the way of passing in and the diffusing mechanisms, the prevention and cure strategy of the invasive alien species are also discussed. The analysis of statistics indicates that nowadays the amount of alien species in Guangdong is at the first place of China, and this is most correlative to its costal regions of Guangdong and the frequency of economic exchange. The invasive species have the characters of powerful reproduction and strong adaption to the new environment, and can fast spread to a long distance by transplant of conscious, transported by accident or by natural force. To control the spreading and the damage of invasive alien species, there are some measures used, such as the physical, chemical, biological, substitutive and the colligation methods, and it is important to strengthen the legislation and enhance the consciousness of people for avoidance of the species invaded.
出处
《广州大学学报（自然科学版）》
CAS
2003年第5期414-418,共5页
Journal of Guangzhou University:Natural Science Edition
基金
广东省环境保护局科技开发研究项目(2000-2)
关键词
外来入侵物种
生态危害
对策
广东
invasive alien species
ecological damage
strategy
Guangdong
