【摘要】 遵照联合国粮农组织(FAO)国际植物检疫措施标准(ISPM)规定的有害生物风险分析(PRA)程序,利用相关风险性分析模型,从国内外分布情况、潜在的危险性、受害对象的经济重要性、定殖和扩散的可能性及管理难度等5个方面对硬雀麦在我国的风险性进行定性、定量分析,其综合风险值R为2.47,据此提出了相关的风险管理备选方案,以期使风险水平减少到可接收的水平。更多还原

【Abstract】 Abided to pest risk analysis(PRA) of international standards for pest measurements(ISPM) of food and agriculture organization(FAO) and the relational model of PRA,the quantitative and qualitative analysis of the risk level of Bromus rigidus Roth in five aspects(distribution,potential damaged degree,economical value of the damage objects,establish and possibility of later spreading and management difficulty) were carried out.The results showed that the value of the synthetical risk value was 2.47.The risk management strategies were proposed in order to reduce the risk to acceptable level.更多还原