1961～2012年银川浅层地温变化及其对气候变化的响应  

Variations of the Shallow Ground Temperature and its Response to Climate Change in Yinchuan City during 1961 ～ 2012

作　　者：闫军辉 刘金科[1] 王娟 王义民[1] 王黎明 马彩杰 YAN Jun-hui;LIU Jin-ke;WANG Juan;WANG Yi-min;WANG Li-ming;MA Cai-jie(College of Geographic Sciences,Xinyang Normal University,Xinyang 464000,China;Henan key laboratory for synergisticprevention of water and Soil Environmental pollution,Xinyang Normal University,Xinyang 464000,China;Key Laboratory of ClimateChange & Environmental Evolution,Xinyang Normal University,Xinyang 464000,China;Shaanxi Meteorological Bureau,Xi'an 710119,China)

机构地区：[1]信阳师范学院地理科学学院,河南信阳464000 [2]信阳师范学院河南省水土环境污染协同防治重点实验室,河南信阳464000 [3]信阳师范学院气候与环境演变重点实验室,河南信阳464000 [4]陕西省气象局,陕西西安710119

出　　处：《土壤通报》2019年第1期57-62,共6页Chinese Journal of Soil Science

基　　金：国家自然科学基金项目(41501051;41630529);青海省自然地理与环境过程重点实验室开放基金项目(2018-QZH-K04);信阳师范学院南湖学者奖励计划青年项目;河南省高等教育教学改革研究与实践项目(研究生教育教学改革研究与实践项目;No.103);国家大学生创新创业训练计划项目(201810477013)

摘　　要：利用银川市1961～2012年逐月平均气温和逐月0～20 cm浅层地温资料,采用统计学和功率谱分析等方法分析了过去52年银川市浅层地温的变化特征及其对气候变化的响应。结果表明:(1)1961～2012年银川市各层年平均地温均呈显著升高趋势,其中0 cm地温升温速率最大,为(0.477±0.126)℃(10 a)^(-1)(95%置信区间,下同),10 cm地温升温速率最小,变化速率为(0.395±0.117)℃(10 a)^(-1);(2)1961年以来银川各层年与季平均地温多以2～4 a周期为主,其周期可能受海气相互作用及平流层准2 a震荡的影响;(3)银川浅层地温对气温变化极为敏感,年平均气温每升高1℃,相当于0 cm、5 cm、10 cm和20 cm年平均地温分别升高(1.095±0.154)℃、(0.970±0.169)℃、(0.911±0.159)℃和(0.945±0.173)℃。Based on the data of monthly mean air temperature and shallow ground temperature at the depth of 0-20 cm from 1961 to 2012 in Yinchuan City,the variation characteristics of shallow ground temperature and its response to climate change were analyzed by using statistical and power spectral analysis methods.The main results were as follows:(1)During the past 52 years,annual mean shallow ground temperature at each layer showed a significantly warming trend.The maximum rate was found at the depth of 0 cm with a value of 0.477±0.126℃(10 a)^-1 and the minimum rate was found at the depth of 10 cm with a value of 0.395±0.117℃(10 a)^-1.(2)The periodicity of annual mean shallow ground temperature at each layer was 2 a to 4 a over the past 52 years,and its periodicity might be influenced by ocean-atmosphere interaction and the stratospheric quasi-biennial oscillation.(3)The shallow ground temperature was significantly correlated with the air temperature in Yinchuan.The annual mean ground temperature at0,5,10 and 20 cm depth was increased by 1.095±0.154℃,0.970±0.169℃,0.911±0.159℃and 0.945±0.173℃when the annual mean air temperature was increased by 1℃.

关 键 词：浅层地温 变化速率 响应 气候变化 银川 

分 类 号：P467[天文地球—大气科学及气象学]