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通过灯下诱虫情况调查、毒源地分析、轨迹模拟、ArcGIS技术以及天气学背景分析,阐释了2009、2010年江西省上犹县发现的南方水稻黑条矮缩病(SRBSDV)的供毒源地情况,以及白背飞虱Sogatella furcifera(Horváth)携毒的传递路径。结果显示:(1)通过对白背飞虱迁入上犹的虫源地与经鉴定的南方水稻黑条矮缩病发病区域的叠加分析,明确了传入上犹的毒源地分布于广东、广西、海南3省区境内。(2)西南低空急流及偏南气流是白背飞虱将我国南方的病毒远距离传送到上犹县境内的动力源。(3)白背飞虱随下沉气流和降雨在上犹境内的集中降落是SRBSDV在当地暴发的触发条件。
The investigations on the conditions of Southern China black streak dwarf (SRBSDV) discovered in Shangyou County of Jiangxi Province in 2009 and 2010 were analyzed by investigation of the conditions of entrails in the lamp, the source of poisoning, the trajectory simulation, the ArcGIS technique and the background of the weather. The source of the disease, and the transmission pathways of Sogatella furcifera (Horváth) carrying drugs. The results showed that: (1) Through the superposition analysis of the areas where the whitebacked planthopper migrated to Upper Utah and the identified southern black-spotted dwarf disease, it was found that the source of Shangjidu was distributed in Guangdong, Guangxi, Hainan 3 provinces in the territory. (2) The southwest low-level jet stream and the south-easterly stream are the source of the white-backed planthopper that transmits the virus in the south of our country to the county in Shangyou County. (3) The concentrated fall of Sogatella furcifera with sinking airstream and rainfall in Utah was the trigger for SRBSDV outbreak in the area.