摘要
生物入侵已被列为当今世界最为棘手的三大环境难题(生物入侵、全球气候变化和生境破坏)之一。文章阐述了我国生物入侵的现状,以时间和地理区域为尺度,初步探讨了生物入侵的生态分布特征。指出其特征是:生物入侵对生物多样性造成重大影响,入侵生物的数量逐年增加,具有时间动态性;生物入侵的分布具有纬度地带性规律,纬度越低生物入侵的现象越严重;入侵生物的数量具有地理区域性。
Biological invasion has been regarded as one of the three environmental problems (biological invasion, climate change, habitat destroying) in the world today and has affected biodiversity. The paper analyses the status quo of biological invasion in China and points out the ecological distribution characteristics of biological invasion in the scale of time and region. The characteristics are that invasive species become more and more each year, and there is a temporal dynamic property in biological invasion; that there is a latitudinal rule in the distribution of biological invasion, i.e., the lower the latitude is, the more severe biological invasion is; and that there is a geographic regional property in quantities of invasive species.
出处
《生态环境》
CSCD
2004年第3期414-416,共3页
Ecology and Environmnet
基金
国家自然科学基金项目(40171053)
关键词
生物入侵
时间动态性
地理区域性
biological invasion
temporal dynamic property
geographic regional property
