吉林省1965-2007年地表温度的变化趋势

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吉林省1965~2007年地表温度的变化趋势 作者:刘洋 刘滨辉

来源:《安徽农业科学》2014年第31期

摘要 利用吉林省20个国家基准气象站1965~2007年逐日地表温度以及气温的相关资料,采用气候倾向率、相关分析等统计方法,分析吉林省43年来地表温度的变化规律以及地表温度变化与气温之间的关系。结果表明,1965~2007年吉林省地表平均温度、地表最高、地表最低温度均呈显著上升趋势,增幅分别为0.62、0.50、0.85 ℃/10a,且地温的升温幅度高于相应气温的升温幅度;2000年以后地表平均温度与平均气温之间的变化存在明显的分化,这主要是由于地表最低温度的快速上升引起的;地表日较差与气温日较差均呈现显著下降趋势,地表日较差的下降发生在2000年之后,气温日较差的下降发生在1985年之前。 关键词 吉林省;地温;变化趋势;昼夜温差

中图分类号 S161 文献标识码 A 文章编号 0517-6611(2014)31-11021-03

Variation Trend of Soil Temperature in Jilin Province during 1965-2007

LIU Yang, LIU Binhui*

(Northeast Forestry University, Harbin, Heilongjiang 150040)

Abstract Using daily 0 cm ground temperature and air temperature from 20 weather stations in Jilin Province for the period from 1965 to 2007, adopting the statistical methods include linear trend and correlation analysis, the variation trend of annual mean soil temperature and the relationship between soil and air temperature were analyzed. The result showed that: from 1965 to 2007 annual mean surface soil temperature, maximum soil surface temperature, minimum soil surface temperature increase significantly with the rate of 0.62, 0.50, 0.85 ℃/10a, respectively, the magnitude rate of change for soil surface temperature is larger than correspondent air temperature; there is an obvious difference between soil surface and air temperature since 2000, which caused by the rapidly increase of the minimum soil surface temperature; the soil surface and air diurnal temperature range reveals rapidly decreasing trend, the period of rapidly decrease of the former occur after 2000 and latter before 1985.

Key words Jilin Province; Soil temperature; Variation trend; Diurnal temperature range 近几十年全球变化已成为研究的焦点,IPCC 报告指出在1906~2005年间地表温度升高了0.74 ℃,且这种升温主要集中在近50年,在中高纬度地区尤为突出[1-2]。在以往气候变化的研究中主要侧重于对气温与降水的研究,对地温的研究较少。近年来,地温的研究越来越受到国内外学者的重视,Hu 等分析了美国北部和西北部10 cm地温的变化,发现大多数站点地温均

龙源期刊网 http://www.qikan.com.cn

吉林省1965~2007年地表温度的变化趋势 作者:刘洋 刘滨辉

来源:《安徽农业科学》2014年第31期

摘要 利用吉林省20个国家基准气象站1965~2007年逐日地表温度以及气温的相关资料,采用气候倾向率、相关分析等统计方法,分析吉林省43年来地表温度的变化规律以及地表温度变化与气温之间的关系。结果表明,1965~2007年吉林省地表平均温度、地表最高、地表最低温度均呈显著上升趋势,增幅分别为0.62、0.50、0.85 ℃/10a,且地温的升温幅度高于相应气温的升温幅度;2000年以后地表平均温度与平均气温之间的变化存在明显的分化,这主要是由于地表最低温度的快速上升引起的;地表日较差与气温日较差均呈现显著下降趋势,地表日较差的下降发生在2000年之后,气温日较差的下降发生在1985年之前。 关键词 吉林省;地温;变化趋势;昼夜温差

中图分类号 S161 文献标识码 A 文章编号 0517-6611(2014)31-11021-03

Variation Trend of Soil Temperature in Jilin Province during 1965-2007

LIU Yang, LIU Binhui*

(Northeast Forestry University, Harbin, Heilongjiang 150040)

Abstract Using daily 0 cm ground temperature and air temperature from 20 weather stations in Jilin Province for the period from 1965 to 2007, adopting the statistical methods include linear trend and correlation analysis, the variation trend of annual mean soil temperature and the relationship between soil and air temperature were analyzed. The result showed that: from 1965 to 2007 annual mean surface soil temperature, maximum soil surface temperature, minimum soil surface temperature increase significantly with the rate of 0.62, 0.50, 0.85 ℃/10a, respectively, the magnitude rate of change for soil surface temperature is larger than correspondent air temperature; there is an obvious difference between soil surface and air temperature since 2000, which caused by the rapidly increase of the minimum soil surface temperature; the soil surface and air diurnal temperature range reveals rapidly decreasing trend, the period of rapidly decrease of the former occur after 2000 and latter before 1985.

Key words Jilin Province; Soil temperature; Variation trend; Diurnal temperature range 近几十年全球变化已成为研究的焦点,IPCC 报告指出在1906~2005年间地表温度升高了0.74 ℃,且这种升温主要集中在近50年,在中高纬度地区尤为突出[1-2]。在以往气候变化的研究中主要侧重于对气温与降水的研究,对地温的研究较少。近年来,地温的研究越来越受到国内外学者的重视,Hu 等分析了美国北部和西北部10 cm地温的变化,发现大多数站点地温均


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