冀京津春季冬小麦赤霉病发生期气象条件分析  

Analysis on Meteorologic Conditions during Wheat Scab Occurrence Period of Spring in Hebei,Beijing and Tianjin

作　　者：袁淑杰[1,2] 梁平 任红敏[4] 曹克强[4] 张文宗[1,2] 

机构地区：[1]河北省气象与生态环境重点实验室,河北石家庄050021 [2]河北省气象科学研究所,河北石家庄050021 [3]贵州省黔东南州气象台,贵州凯里556000 [4]河北农业大学植物保护学院,河北保定071001

出　　处：《安徽农业科学》2010年第3期1359-1361,1382,共4页Journal of Anhui Agricultural Sciences

基　　金：国家财政部气象行业专项(GYHY200706030);中国气象局2009年预算内项目(CMATG2009M32);河北省科学技术厅项目(042401116D-3)

摘　　要：用趋势系数法分析了冀京津22个气象站1960～2003年春季冬小麦赤霉病发生期影响病害发生和流行的气象条件．用权重系数法计算了影响小麦赤霉病发生程度的气象综合指数——K指数。结果表明，冀京津区域气温有增加趋势，有利于小麦赤霉病的发生流行；冀京津区域降雨量、降雨日数、相对湿度等气象因子未表现出明显的变化；大部分地区K指数大于0，即春季小麦赤霉病发生流行的可能性逐年加大。这些地区只要菌源达到一定数量，未来小麦赤霉病发生的概率将会越来越大。The evolutionary tendency of the meteorological conditions from 1960 to 2003 at 22 weather stations was analyzed by tendency coefficient method during wheat scab occurrence period of spring in Hebei, Beijing and Tianjing. The meteorologic aggregative index of K, which effected by the occurrence degree of wheat scab, was calculated by weight coefficient method. The results showed that the temperature had the tendency of increasing in these regions ; the rainfall, raining days and relative humidity had no significant changes ; the index of K was over 0 in most areas, that is, the possibility of wheat scab occurrence will be increased year by year. In the future the probability of wheat scab occurrence will get bigger if the infection sources accumulate to certain amount.

关 键 词：冀京津 小麦赤霉病 温度 降雨 相对湿度 

分 类 号：S431[农业科学—农业昆虫与害虫防治]