入侵植物对万州区生态环境的风险分析与评价  

Pest Risk Analysis and Assessment of Invasive Plants On Environment in Wanzhou District

作　　者：余顺慧[1,2] 邓洪平[2] 

机构地区：[1]重庆三峡学院,重庆404000 [2]西南大学生命科学学院/三峡库区生态环境教育部重点实验室

出　　处：《农技服务》2011年第1期30-31,45,共3页AGRICULTURAL TECHNOLOGY SERVICE

基　　金：重庆市教委科学技术研究资助项目(KJ101105)

摘　　要：对万州区入侵植物的种类、分类范围、入侵原因及机制、危害现状等进行了调查,参照国际上有害生物风险分析"PRA"(Pest Risk Analysis)方法,将入侵植物对万州生态环境的危害性进行了定量分析和排序。结果表明:按风险等级由高到低的前9种入侵植物依次为小白酒草、野胡萝卜、牛膝菊、凤眼莲、三叶鬼针草、野茼蒿、红花酢浆草、野燕麦、落葵薯。各物种的危害性综合评价均为三级,具有中度危险性,应引起有关部门的高度重视;并在此基础上提出了相应的风险对策。Based on investigating the species,range,reasons and mechanism of invasion, jeopardized situation of invasive plants, the authors analyzed these plants in the fields of quantitative analysis and taxis according to the International Pest Risk Analysis Method. The result shows that ：according to the leve of risk from high to low, the first nine invasive plants sequence is Conyza canadensis （L）Cronq,Ahernanthera philox- eroides （ Mart. ） Griseb. , Daucus carota L. , Galinsoga parviflora Cav. , Eichhornia crassipes （ Mart. ） Solms, Bidens pilosa L, Grassosephalum Crepidioides （ Benth. ） S. Moore, Gynura crepidioides Bemh. and Oxalis corymbosa DC ; the risk level of all these ten plants is of the third, and these plants have middle fatalness, so the related government departments should attach importance to these invasive plants;then on the ground of that this paper proposes the relevant risk stategy.

关 键 词：入侵植物 风险分析 风险对策 

分 类 号：Q948[生物学—植物学]