摘要
为给通辽市霜冻初终期气候趋势预测业务提供依据,通过分析通辽市8个气象站53年(1961-2013年)初、终霜日期及无霜期序列,初步探讨了它们的变化趋势、分布频率等气候特征,指出了初霜期逐渐提前,倾向率为每10年-2.3d;终霜期有延后趋势,倾向率为每10年2.1d;无霜期延长的变化趋势倾向率为每10年4.4d。
By analysis of 8 meteorological stations in Tongliao for 53 years (1961-2013) the beginning,the final frost date and frostless period sequence,their variation trends and climatic characteristics of sudden change were explored, it pointed out that first frost early with the tendency 2.3d/10a, the final frost delayed with the tendency 2.1d/lOa, the frostless period prolonged with tendency 4.4d/10a.
出处
《内蒙古农业科技》
2014年第4期55-56,68,共3页
Inner Mongolia Agricultural Science and Technology
关键词
无霜期
突变
趋势
Frostless period
Sudden change
Tendency