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云南师宗白背飞虱前期迁入种群的虫源地分布与降落机制
引用本文:郑大兵,崔茂虎,何洪平,沈慧梅,胡高,陈晓,翟保平.云南师宗白背飞虱前期迁入种群的虫源地分布与降落机制[J].生态学报,2014,34(15):4262-4271.
作者姓名:郑大兵  崔茂虎  何洪平  沈慧梅  胡高  陈晓  翟保平
作者单位:云南省师宗县植保植检站, 师宗 655700;南京农业大学植物保护学院昆虫学系, 农作物生物灾害综合治理教育部和农业部重点实验室, 南京 210095;云南省师宗县植保植检站, 师宗 655700;云南省农科院农业环境资源研究所, 昆明 650205;南京农业大学植物保护学院昆虫学系, 农作物生物灾害综合治理教育部和农业部重点实验室, 南京 210095;南京农业大学植物保护学院昆虫学系, 农作物生物灾害综合治理教育部和农业部重点实验室, 南京 210095;南京农业大学植物保护学院昆虫学系, 农作物生物灾害综合治理教育部和农业部重点实验室, 南京 210095
基金项目:国家973项目(2010CB126200);NSFC-云南联合基金重点项目(U1202266);农业公益性行业科研专项(200903051)
摘    要:通过对1990—2012年云南省师宗县4—5月出现的白背飞虱灯诱高峰日进行轨迹模拟以及降虫高峰日的风场分析,得到以下结果:4月下旬,师宗上空盛行西风,白背飞虱虫源主要来自缅甸东北部,部分来自越南北部和金三角地区;5月份,西南风为盛行风向,其中上中旬的虫源地主要分布在越南西北部、老挝北部和滇西南,缅甸东北部可提供部分虫源;下旬则主要分布在滇西南,部分虫源来自越南西北部、老挝北部和缅甸东北部。对降虫高峰期的大气环流背景、峰日风温场、降雨等气象因子的分析结果表明,降水、风切变和气流垂直扰动是造成白背飞虱集中降落的主要因子。

关 键 词:白背飞虱  前期迁入  虫源地  轨迹模拟  降落机制
收稿时间:2012/12/5 0:00:00
修稿时间:2014/4/11 0:00:00

Source areas and landing mechanisms of early immigrant population of white-backed planthoppers Sogatella furcifera (Horváth) in Shizong, Yunnan Province
ZHENG Dabing,CUI Maohu,HE Hongping,SHEN Huimei,HU Gao,CHEN Xiao and ZHAI Baoping.Source areas and landing mechanisms of early immigrant population of white-backed planthoppers Sogatella furcifera (Horváth) in Shizong, Yunnan Province[J].Acta Ecologica Sinica,2014,34(15):4262-4271.
Authors:ZHENG Dabing  CUI Maohu  HE Hongping  SHEN Huimei  HU Gao  CHEN Xiao and ZHAI Baoping
Institution:Shizong Plant Protection and Quarantine Station, Shizong 655700, China;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Insect Pests (Ministry of Education, Ministry of Agriculture of China), Nanjing 210095, China;Shizong Plant Protection and Quarantine Station, Shizong 655700, China;Institute of Agricultural Environments and Resource, Yunnan Academy of Agricultural Science, Kunming 650205, China;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Insect Pests (Ministry of Education, Ministry of Agriculture of China), Nanjing 210095, China;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Insect Pests (Ministry of Education, Ministry of Agriculture of China), Nanjing 210095, China;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Insect Pests (Ministry of Education, Ministry of Agriculture of China), Nanjing 210095, China
Abstract:From April to May, 1990-2012, the source areas of early immigration of white-backed planthoppers Sogatella furcifera (Horváth) (WBPH) were studied through the analysis on the daily light-trap catches, immigration trajectory simulation and horizontal wind field. The following results were obtained: The high frequency of westerly wind carried the large population of WBPH to Shizong in late April. The source areas were mainly located in northeastern Myanmar and the secondary source areas were at northern Vietnam and Golden Triangle. Airborne WBPH populations were carried by a strong, low-level, southwest jet-stream in May and the mass immigration of WBPH into Shizong during early and middle May was found form northern Laos, northwestern Vietnam and Southwestern Yunnan, and some immigrants from northeastern Myanmar. Most of the immigrants in late May were tracked to Southwestern Yunnan, and part of immigrants to northwestern Vietnam, northern Laos and northeastern Myanmar. Based on the analysis on the meteorological background and rainfall distribution, it was found that the extensive heavy rainfall in southeastern Yunnan during late April to May and low temperature shield of surrounding to flying WBPH and the wind shear associated with heavy precipitation were the key factors to affect the concentrated landing of WBPH.
Keywords:Sogatella furcifera  early immigration  source area  migration simulation  landing mechanism
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