摘要
外来种入侵已成为一个全球性问题。我国对外来种的关注始于20世纪90年代。到目前为止,对危害较大的物种研究较多,而对危害比较小的、处于潜伏期的外来物种研究较少。由于对外来种、入侵种内涵的理解缺乏统一的标准,致使中国究竟有多少外来种、多少入侵种众说纷纭。文中介绍了Presten提出的确定本地种和外来种的九条标准,分析了外来植物的入侵性与其自身的生物学特性以及生境的关系,介绍了外来植物通过光、水分、营养竞争,压制和排挤本地物种等入侵机制以及入侵种对本地物种造成的生态影响,提出用综合治理措施防除入侵性外来植物。
Alien species invasion has become the worldwide problem. From 1990s China began to pay much attentions to alien species. Up to now, most of those research works focused on those comparatively harmful species, less study has been carried out on those exotic species which did not shown harmful or in their latent period. Just because there are no unified standard to understand the connotation of alien species and invasive species, led to that the opinions varied on how many alien species and how many invasive species existing in China. In this paper, those 9 standards brought forward by Presten to make certain which species is non - native species and which one is native species has been introduced. Those inhibiting and supplanting mechanisms of those alien species on those native species through competition on sun light, water and nutrition were induced also. The ecological influences of those introduced species on native species were also discussed. The integrated control techniques were put forward to control and get rid of those invasive alien species.
出处
《世界林业研究》
CSCD
北大核心
2007年第4期12-18,共7页
World Forestry Research
基金
教育部青年教师奖(第二批)
黑龙江省科技攻关项目(GB04B202)
关键词
外来植物
外来种
入侵性评价
生态影响
防除
alien plants, alien species, evaluation on invasive capacity, ecological influence, control and prevention
