Regional Ecological Risk Assessment for Invasive Alien Plants of Compositae in Poyang Lake Basin
Biological invasion is a serious global environmental problem. This paper, based on the theory of ERA and methods of the analytic hierarchy process (AHP) of multi-criteria decision-making (MCDM), was investigated and made a quantitative regional ecological risk assessment to 14 species alien plant invasion of Compositae distributed to Poyang lake basin in China. The results showed that the ecological risk of Ambrosia artemisiifolia, Conyza canadensis, Erigeron annuus, Ageratum conyzoides and Bidens pilosa is high (grade 1-1 ), that of Galinsoga parviflora, Crassocephalum crepidioides, Aster subulatus comes next (grade2), while Conyza sumatrensis, C. bonariensis, Solidago Canadensis, Ambrosia trifida is lower (grade 3), and Galinsoga quadriradiata, Soliva anthemifolia of the last (grade 4). Finally, it is suggested that how to management these invasive alien plants based on this study.
Invasive alien plant Compo-sitae ecological risk assessment multi-criteria decision-making (MCDM) risk management strategies
Guowen Xie Weiguang Chen Meizheng Lin Yanling Zheng Yisheng Zheng
School of Life Science, Guangzhou University,Guangzhou 510006, China School of Foreign Studies, Guangzhou University, Guangzhou 510006, China School of Geographical Science,Guangzhou University, Guangzhou 510006, China School of Life Science, Guangzhou University, Guangzhou 510006, China
国际会议
The 2nd International Conference on Risk Analysis and Crisis Response(第二届风险分析与危机反应国际学术研讨会)
北京
英文
381-387
2009-10-19（万方平台首次上网日期，不代表论文的发表时间）