来源:央视新闻客户端
过了谷雨节气,气温回升、雨水渐多,也到了春耕春种的关键阶段。“雨生百谷”“谷雨断霜” 这两句农谚,点明了气象与农业生产的紧密联系。此时的天气条件究竟如何助力春耕生产?
中国气象局原公共气象服务首席 朱定真:“雨生百谷”这个词,其实它反映了农业上的一个要素,就是雨热同期,对于农作物的生长是最重要的,或者说最有利的,那么在谷雨期间恰恰是这样的。我们说,到了“谷雨”,它是“断霜”,那“谷雨断霜”就是谷雨的时候,低层受热条件开始回暖,所以一个是雨更多了,一个是气温开始升高了,气温升高、雨多,正好是雨热同期的时候。
所以,这个是对农业,就是最好的一个时期,所以有说“谷雨栽下(上)红薯秧,一棵能收一大筐”,就是说在这个时候,你去栽种红薯,那么它在雨热同期的加持下,它是能够获得更好的产量的,包括品质,所以从谷雨来讲,对农业来讲确实是一个非常重要的农事活动的时期。
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