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Regional Ecological Risk Assessment for Invasive Alien Plants of Compositae in Poyang Lake Basin

机译:Po阳湖流域菊科外来入侵植物的区域生态风险评估

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摘要

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.
机译:生物入侵是一个严重的全球环境问题。本文基于ERA理论和多准则决策(MCDM)层次分析法(AHP),对14种外来植物入侵菊科植物的入侵进行了定量的区域生态风险评估。 China阳湖盆地在中国。结果表明,青蒿,加拿大Conyza canadensis,Erigeron annuus,Ageratum conyzoides和Bidens pilosa的生态风险较高(1-1级),其次为Galinsoga parviflora,Crassocephalum crepidioides,Aster subulatus(2级),而Conyza sumatensis ,C。bonariensis,加拿大一枝黄花,Ambrosia trifida较低(3级),而Galinsoga quadriradiata,Soliva anthemifolia则为最后一个(4级)。最后,在此研究的基础上,建议如何管理这些外来入侵植物。

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