论文部分内容阅读
粘虫(Mythimna separata walker)是一种“暴食性”害虫,列为《全国农业发展纲要》中规定要消灭的危害对象之一。我国江淮流域是一代粘虫发生区,在根治我国粘虫危害上具有战略地位,决定一代粘虫发生程度的主导因素,是越冬代蛾量迁入的多少。因此组建该区越冬代蛾量及迁入期预测模式,有着特别重要的现实意义。目前在国内,关于粘虫发生期和发生量预测,多属中短期预测,本文主要是用气象因子,对组建长期预测模式进行初步探讨。
Mythimna separata walker is a kind of “binge-eating” pest, listed as one of the harms to be eliminated in the Outline of National Agricultural Development. China’s Yangtze and Huaihe River Basin is a generation of armyworm area, in the cure of Mythimna separata have a strategic position on the damage, the main determinants of the occurrence of a generation of armyworm, is the amount of winter moths into the amount. Therefore, the establishment of the area overwintering moths and the immigration forecasting model has a particularly important practical significance. At present in China, the prediction of occurrence and occurrence of armyworm is mostly in short-term and medium-term. This paper mainly discusses the formation of long-term prediction models by meteorological factors.