张家口市坝上地区气温和地温的变化特征  

Change Characteristics of Air Temperature and Soil Temperature in Bashang Area of Zhangjiakou

作　　者：王玉坤 于洋 卜跃刚 田亚男[1] 郝桂珍[1] 裴宏伟[1] WANG Yu-kun;YU Yang;BU Yue-gang;TIAN Ya-nan;HAO Gui-zhen;PEI Hong-wei(Hebei Institute of Architectural Engineering,Zhangjiakou 075000,China)

机构地区：[1]河北建筑工程学院

出　　处：《河北农业科学》2019年第4期77-82,共6页Journal of Hebei Agricultural Sciences

基　　金：国家自然科学基金项目（41701017）;河北省重点研发计划项目（18397002D）;河北省教育厅2019年度河北省高等学校科学研究课题科技指导项目（Z2019024）;张家口市科技计划项目（1711027C,1711052J)

摘　　要：张家口市坝上地区的气候变化对于京津冀地区影响重大。对张家口市坝上地区的气温和各深度土壤温度的变化特征进行分析,并拟合了土壤温度的计算公式。结果表明:1960~2018年年平均气温呈显著上升趋势,在1990年发生突变;春季和冬季气温增速较快,且波动幅度较大;地表温度变化与气温变化具有较好的一致性,随着土壤深度增加,地温的季节变化和昼夜变化波动均减缓,滞后现象明显;春夏两季的地温随土壤深度的增加而降低,秋冬两季的地温随土壤深度的增加而增加;0~50 cm的年平均地温随土壤深度的增加而增大,80 cm以下的年平均地温基本不变;通过土壤温度计算公式得到的地温计算结果与试验的实际测定结果基本一致。Climate change in Bashang area of Zhangjiakou has a significant impact on Beijing-Tianjin-Hebei region.The change characteristics of air temperature and soil temperature at different depths in Bashang area of Zhangjiakou were analyzed,and the calculation formula of soil temperature was fitted.The results showed that the annual average air temperature showed a significant increasing trend from 1960 to 2018 with a sudden change in 1990.The air temperature in spring and winter increased rapidly,and the fluctuation range was large.The trend of surface temperature was in good agreement with air temperature.With the increase of soil depth,the fluctuation of seasonal and diurnal variation of soil temperature slowed down,and the lagging intensified.The soil temperature decreased with the increase of depth in spring and summer,and increased in autumn and winter.The annual average ground temperature of 0-50 cm increased with the increase of depth,and remained basically unchanged below 80 cm.The results obtained by the calculation formula of soil temperature were basically consistent with the measured results of the experiments.

关 键 词：气温 地温 土壤深度 冻结深度 张家口坝上地区 

分 类 号：P421.1[天文地球—大气科学及气象学]