关键词: 高温日数, 高温日数, 时空变化特征, 线性趋势, 通径分析, 小波分析

Abstract: In order to study the regional differences of temperature change, exploit the regional climate resources rationally and improve the agricultural ecological environment , the climatic characteristics of temperature change in Shuozhou were studied by using annual average temperature, average maximum and minimum temperature and extreme maximum and minimum temperature date from 1957 to 2017 in this paper. The results show that:(1)The annual average temperature of Shuozhou in recent 61 years show an upward trend, and the increase rate of temperature is 0.4 ℃/10a , which is obviously higher than that of the whole country (0.25 ℃/10a). The average temperature of four seasons also show an upward trend and the increase of temperature in winter and spring is more obvious. (2)The annual average minimum temperature (0.47 C/10a) and extreme minimum temperature (0.61 C/10a) are much higher than the annual average maximum temperature (0.3 C/10a) and extreme maximum temperature (0.18 C/10a). (3)Climate anomaly analysis shows that the anomalies can occur in four seasons, especially in winter. (4)The abrupt change analysis shows that the abrupt of average minimum temperature and extreme minimum temperature occurs in 1970s, which is earlier than the abrupt change time of the annual average temperature(1990s).