黑龙江省气候变暖对极端天气气候事件的影响

Effect of Climate Warming for the Extreme Weather Climate Event in Heilongjiang Province

黑龙江省 1 980年以来气候变暖已成为事实 ,气候变暖导致天气气候极端事件的发生 ,主要表现在 :①大雨暴雨次数增加 ;② 30℃以上极端最高气温平均日数下降 ;③- 30℃以下极端最低气温平均日数明显减少 ;④初霜日平均后延 2～ 5天 ;⑤终霜日 ,北部中部提前 3～ 5天而南部延长 ;⑥夏季低温次数明显减少 ,北部减少多于南部 ;⑦大旱年次数增多 ,大涝次数北少南多 ,西南部地区为旱涝敏感区。

Since the 1980’s, climate in Heilongjiang is obviously warming. And therefore extreme weather events occurred: such as ①increasing heavy rain events; ② days with extreme maximum temperature above 30℃ decreased; ③ below -30℃ extreme minimum temperature mean days obviously decreased; ④ the first frost date has prolonged for 2—5 days; ⑤ The last frost date in the north and middle comes 3—5 days earlier, while in the south it prolonged; ⑥ In summer, the low temperature days decreased obviously, the north decreased more than the south; ⑦ The heavy drought years increased, the flood number decreased in the north and increased in the south. The southwest regions was sensitive to the drought/flood.