沙漠蝗入侵我国西藏边境地区的路线分析  

Migratory routes of the desert locust Schistocerca gregaria to Tibet,China

作　　者：冯士骞 石帅 李霜 胡高[4] 董莹莹 李志红 涂雄兵[1] 张泽华[1] Feng Shiqian;Shi Shuai;Li Shuang;Hu Gao;Dong Yingying;Li Zhihong;Tu Xiongbing;Zhang Zehua(State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Department of Plant Biosecurity,College of Plant Protection,China Agricultural University,Beijing 100193,China;National Climate Center,Beijing 100081,China;College of Plant Protection,Nanjing Agricultural University,Nanjing 210095,Jiangsu Province,China;Key Laboratory of Digital Earth Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193 [2]中国农业大学植物保护学院植物生物安全系,北京100193 [3]国家气候中心,北京100081 [4]南京农业大学植物保护学院,南京210095 [5]中国科学院空天信息创新研究院,数字地球重点实验室,北京100094 [6]中国科学院大学,北京100049

出　　处：《植物保护学报》2022年第6期1771-1776,共6页Journal of Plant Protection

基　　金：国家重点研发计划政府间国际科技创新合作重点项目(2021YFE0194800);中央级公益性科研院所基本科研业务费专项(Y2022GH12);财政部和农业农村部国家现代农业产业技术体系(CARS-34-07);中国农业科学院国际农业科学计划(CAAS-ZDRW202108),中国农业科学院基本科研业务费专项(Y2020YJ02)。

摘　　要：为明确沙漠蝗Schistocerca gregaria入侵我国西藏自治区边境地区的路线,利用基于气象研究与预报模型的昆虫三维轨迹分析程序,结合沙漠蝗的飞行行为参数和气象资料,对其入侵时的迁飞路径及低空气流特征进行分析。结果表明,2020年6月,西南季风和热带气旋所产生的西南低空急流持续贯穿我国藏南边境,为沙漠蝗迁飞提供了便利条件,其中6月27日以后的气流适合邻国沙漠蝗虫源入侵我国,且与沙漠蝗入侵我国西藏自治区边境地区的实际时间一致。进一步对虫源地进行分析,发现入侵我国的沙漠蝗种群有效虫源地主要分布在尼泊尔中西部。To determine the invasive routes of the desert locust,Schistocerca gregaria,into the border of the Tibet Autonomous Region of China,the atmospheric circulation field and its invasion routes were analyzed using the 3D track analysis program based on weather research and forecasting(WRF)model combined with the flight parameters of locust and meteorological data.The results showed that a strong low-level jet from the southwest caused by southwest monsoon and tropical cyclone went across the southwest border of Tibet,China in June 2020,facilitating the invasion of S.gregaria.Specifically,the low-level jet appearing after June 27 accelerated the invasion of S.gregaria into Tibet,China,and this time point was consistent with the actual invasion records.Further analysis of backward trajectories indicated that these invasive populations of S.gregaria originated from the middle and the west of Nepal.

关 键 词：沙漠蝗 藏南边境 入侵 迁入路径 风险 气候背景 

分 类 号：S433.2[农业科学—农业昆虫与害虫防治]