Establishment of risk assessment indicator system for alien invasive plants based on AHP-DEMATEL method
By comparing and screening the influencing factors of alien species risk assessment,the scientificity,importance,practicability,and portability of the indicator system were coordinated,and the key factors that determine the risk were selected to construct a typical indicator system for alien plant risk assessment.A mathematical model for measuring the risk of alien invasive plants based on the AHP-DEMATEL method was established from the four dimensions of invasiveness,adaptability,dispersity,and harm to reveal the interdependence between factors,and the direct and indirect relationships between factors were identified and quantified.The risk of Tagetes minuta L.in China was analyzed using the risk assessment indicator system and ecological niche model.The results show that economic hazards,difficulty of prevention,domestic attention and resistance were important factors that lead to the increase of risk coefficient of invasive plants.The comprehensive risk assessment value P of Tagetes minuta L.in China was 0.82.The plant was highly harmful.To prevent the spread of this plant and protect the ecological environment and sustainable agricultural development,it was necessary to establish a monitoring and early warning system in suitable areas.
alien invasiverisk assessmentindex weightAHP-DEMATELTagetes minuta L
国家科技期刊平台
NSTL
万方数据
