朝阳地区近30年地面温度的变化特征

Change Characteristics of Ground Temperature in Chaoyang Area in the Past 30 Years

为农业生产结构调整与作物布局和农业发展规划制定及农业生态环境治理等提供参考依据,利用气候倾向率及累积距平统计方法,研究辽西朝阳地区近30年的地面温度变化特征。结果表明:朝阳地区近30年地温呈上升趋势,气候倾向率为0.583℃/10a。地温的季节性变化非常明显,冬季地面升温趋势最显著,气候倾向率为1.109℃/10a;夏季地面温度呈降低趋势,气候倾向率为-0.112℃/10a。年代间升温幅度不同,21世纪10年代升温幅度最大。

By using the climate tendency rate,accumulative anomaly statistics method,the ground temperature variation characteristics of Chaoyang area in the past 30 years were studied to provide references for structural adjustment of agricultural production,crop allocation,formulation of agricultural development planning and agroecological environment management.Results：In the past 30 years in Chaoyang area, ground temperature showed an increasing trend with climate tendency rate of 0.583℃/10a.Seasonal change was very significant,and the ground temperature increased significantly in winter with climate tendency rate of 1.109℃/10a,while decreased in summer with the climate tendency rate of -0.112℃/10a.The increasing extent of temperature varied between years,which was the biggest in the ten years of 21 st century.