南北过渡带地区浅层地温的全球变化响应——以信阳城区为例  

Response of Shallow Ground Temperature in the North-South Transition Zone under Global Warming: A Case Study of Xinyang City

作　　者：闫军辉 刘金科[1] 卢山 王黎明 梁刘玲 刘明华 曹广超 YAN Junhui;LIU Jinke;LU Shan;WANG Liming;LIANG Liuling;LIU Minghua;CAO Guangchao(College of Geographic Sciences,Xinyang Normal University,Xinyang 464000,China;Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution,Xinyang Normal University,Xinyang 464000,China;Research center of North and South Transition Zone in China,Xinyang Normal University,Xinyang 464000,China;College of Computer Science and Technology,Xinyang Normal University,Xinyang 464000,China;Meteorological Administration in Gushi,Gushi 465200,China;Key Laboratory of Physical Geography and Environmental Process,Qinghai Normal University,Xining 810008,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]信阳师范学院南北过渡带研究中心,河南信阳464000 [4]信阳师范学院计算机与信息技术学院,河南信阳464000 [5]固始县气象局,河南固始465200 [6]青海师范大学青海省自然地理与环境过程重点实验室,青海西宁810008

出　　处：《信阳师范学院学报（自然科学版）》2019年第3期397-402,共6页Journal of Xinyang Normal University(Natural Science Edition)

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;信阳师范学院大学生科研基金项目(2018-DXS-068);信阳师范学院地理科学学院大学生科研基金项目(2018-DXS-04);国家大学生创新创业训练计划项目(201810477013)

摘　　要：利用中国南北过渡带中部河南省信阳城区1961-2017年逐月平均气温和逐月0~20cm浅层地温资料,采用统计学、Mann-Kendall和功率谱分析等方法分析了过去57a信阳城区浅层地温的变化特征及其对全球变化的响应.结果表明:(1)1961年以来信阳各层年平均地温均呈显著升高趋势;(2)1961-2017年信阳各层年、季平均地温周期多以2~4a为主,且秋季和冬季周期现象明显;(3)Mann-Kendall分析显示,5~20cm地层年均地温于20世纪90年代初发生突变,而0cm地温却于20世纪末发生由冷转暖的转折;(4)信阳浅层地温对气温变化极为敏感,0cm地表温度对气候变化的响应最为敏感.Based on the monthly mean surface air temperature and shallow ground temperature data at the depth of 0~20 cm from 1961 to 2017 in Xinyang City,located in central North and South Transition Zone,the temporal characteristics of shallow ground temperature and its response to climate change were analyzed by using the statistical,Mann-Kendall test and power spectral analysis methods.The main conclusions were as follows:(1) During the past 57 years,the annual mean shallow ground temperature for each layer showed a significantly warming trend.(2) Significant periodicity of 2~4 a was detected in annual and seasonal mean ground temperature over the past 57 years,and the quasi-cycles were obvious especially in the autumn and winter seasons.(3) During the early 1990s,there the existed significant abrupt changes in Xinyang ground temperature of 5 cm,10 cm and 20 cm.However,the ground temperature of 0 cm turned from cold to warm conditions during the late 1990s.(4) The shallow ground temperature was significantly correlated with the surface air temperature in Xinyang.The most sensitive layer to climate change was the surface layer.

关 键 词：浅层地温 变化速率 响应 气候变化 信阳城区 

分 类 号：P467[天文地球—大气科学及气象学]