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气候变暖形成了冬季温度明显偏高,导致了越冬作物生育进程加快,冬小麦拔节期提前,冻害加重发生。霜冻是指在温暖时期(日平均气温在0℃以上),温度在短时间内下降到足以使作物遭到伤害或死亡的灾害性天气。霜冻,特别是春季晚霜冻,是主要农业自然灾害之一,冻害对农业生产、农民收入造成的损失和社会影响很大,特别是在当前气候变暖的大背景下,突发的严重冻害对农业和农村经济发展造成的损失更大。
The climate warmer formed the winter temperature is obviously higher, leading to accelerated winter fertility process, winter wheat jointing stage ahead of freeze injury increased. Frost refers to the weather during a warm period (average daily temperature above 0 ℃), the temperature dropped in a short period of time enough to crop damage or death of the disastrous weather. Frost, especially the spring frost, is one of the major agricultural natural disasters. Frost damage causes great losses and social impacts on agricultural production and peasants’ income. Especially under the background of current climate warming, sudden severe frost damage Agricultural and rural economic development caused greater losses.