摘要
根据宁夏中部干旱带兴仁国家一般气象站的历史气象资料,采用逐步判别分析方法,分析了气候条件与蚜虫发生等级之间的关系,结果表明:3月上旬日照时数、4月中旬最低气温和5月中旬降水量与蚜虫发生程度密切相关,组建了宁夏中部干旱带香山硒砂瓜种植区蚜虫预测模型,历史符合率达100%。
According to historical meteorological data of Xingren National Ordinary Meteorological Observation Station in middle arid area of Ningxia,the relationship between meteorological factors and the occurrence degree of aphis was analyzed by means of stepwise discrimination analysis.The result showed that the occurrence degree of aphis had close relationship with the sunshine hours in first ten days of March,the lowest air temperature in middle ten days of April and the precipitation in middle ten days of May.A forecast model for aphis of Xisha Melon planting zone in middle arid are of Ningxia was set up,and the percentage of the forecast corresponding to historical data was 100%.
出处
《现代农业科技》
2010年第8期13-13,17,共2页
Modern Agricultural Science and Technology
基金
宁夏气象局科研项目
关键词
硒砂瓜
蚜虫
逐步判别分析
预测模型
气象因子
宁夏中部干旱带
Xisha Melon
aphis
stepwise discrimination analysis
forecast model
meteorological factor
middle arid area of Ningxia
