摘要
为研究气候变化对呼和浩特市生长季地温的影响,使用呼和浩特市6个国家气象观测站1961—2020年5~80 cm土壤不同土层逐月平均温度资料,运用气候倾向率、小波分析、Mann-Kendall检验等统计方法,分析该地区60年地温变化特征。结果表明,呼和浩特市生长季平均地温呈显著升高趋势,增幅为0.21~0.59℃/10 a。不同土层平均地温的年际变化特征也呈上升趋势,经历了“冷—暖”的演变过程。20世纪60、70年代为冷期,80年代冷暖交替,90年代至21世纪初期为暖期。地温变化普遍具有5~10 a周期。5~80 cm土层平均地温分别在1990、1986、1986、1988、1998、2005年发生突变,20 cm土层平均地温对气候变暖的响应更敏感。
To study the impact of climate change on the soil temperature during the growing season in Hohhot City,monthly average temperature data of different soil layers of 5-80 cm at six national meteorological stations from 1961 to 2020 were used to analyze the characteristics of soil temperature changes in the region over the past 60 years based on statistical methods such as climate tendency rate,wavelet analysis and Mann-Kendall test.The results showed that the average soil temperature during the growing season in Hohhot City was a significant upward trend,with an increase of 0.21-0.59℃/10 a.The interannual variation characteristics of average soil temperature in different layers also showed an upward trend,experiencing a“cold-warm”evolution process.The 1960s and 1970s were cold periods,the 1980s alternated between cold and warm periods,and the 1990s to the early 21st century were warm periods.The variation of soil temperature generally had a period of 5-10 years.The average soil temperature of the 5-80 cm layer had abrupt changes in 1990,1986,1986,1988,1998 and 2005,respectively.The average soil temperature of the 20 cm layer was more sensitive to the response to climate warming.
作者
李寅龙
刘星岑
刘晓敏
塞丫
王志楠
LI Yinlong;LIU Xingcen;LIU Xiaomin;Saiya;WANG Zhinan(Inner Mongolia Mengcao Soil Technology Co.,Ltd,Hohhot 010070,China;Hohhot Meteorological Bureau,Hohhot 010020,China)
出处
《林业调查规划》
2023年第5期218-224,共7页
Forest Inventory and Planning
基金
内蒙古科技重大专项项目(2020ZD0020)
国家能源科技创新项目(CSIEKJ200700396).
