【摘要】 根据通辽气象站1972—2018年深层地温资料,利用线性趋势法分析其年、季、月的变化规律。结果得出:近47年通辽气象站各深层地温历年呈显著的上升变化趋势,各深层地温四季总体上都呈上升趋势,各层最高值与最低值出现的时间随深度的增加而滞后;80cm和160cm深层地温均发生了突变现象,并且都在2017年出现了异常偏暖现象;气温对深层地温的影响作用明显。更多还原

【Abstract】 Based on deep ground soil temperature datas of Tongliao Meteorological Station from 1972 to 2018, the temperature variations including monthly, seasonal and annual changes have been investigated by using linear trend method. The results show that the deep ground temperature in Tongliao Meteorological Station has risen dramatically in the past 47 years. And the soil temperature of each layer increased in four seasons. The occurrence time of the maximum and minimum value of each layer lagged with the increase of depth. Both 80 cm and 160 cm deep layers have abnormally warm temperatures in 2017. The air temperature has a significant effect on the deep ground soil temperature.更多还原