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冰雹是威胁农业生产的自然灾害之一。因此,了解冰雹的发生规律,组织联防,抗雹夺丰收,对落实毛主席关于“备战、备荒、为人民”的伟大指示,具有重要意义。冰雹的发生我国幅员广大,地跨高、中、低纬度,冷暖空气交替有明显的季节特点,成片雹区发生在春、夏、秋三季,并且有规律地自南向北推移。2—3月多在西南、华南,4—5月在长江流域和淮河流域,6—9月在西北、华北、东北地区。全年中夏季出现最多。一天之中多发生在下午2点到7点之间。我国出现冰雹次数最多的是青藏高原,每年约10
Hail is one of the natural disasters that threaten agricultural production. Therefore, to understand the law of occurrence of hail and organize joint defense and anti-hail harvest has great significance for the implementation of Chairman Mao’s great instructions on “preparing for war, preparing for war and for the people.” The occurrence of hail China has a vast territory, with high, medium and low latitudes, alternating warm and cold air have obvious seasonal characteristics, into a hail zone occurred in spring, summer and autumn quarters, and regularly from south to north. 2-3 months in the Southwest, South China, April-May in the Yangtze River and Huaihe River Basin, June-September in the northwest, north China, northeast China. Mostly in summer all year round. One day occurred between 2 o’clock and 7 o’clock in the afternoon. The most frequent hail in our country is the Qinghai-Tibet Plateau, about 10 per year