石羊河流域地表0 cm温度的长期变化

干旱区研究 ›› 2011, Vol. 28 ›› Issue (3): 478-484.

石羊河流域地表0 cm温度的长期变化

刘明春^1,2, 李玲萍²

1. 中国气象局兰州干旱气象研究所 , 甘肃省干旱气候变化与减灾重点实验室, 中国气象局干旱气候变化与减灾重点开放实验室, 甘肃兰州 730020;
2. 甘肃省武威市气象局 , 甘肃武威 733000

收稿日期:2010-05-06 修回日期:2010-06-13 出版日期:2011-06-25 发布日期:2011-09-06
作者简介:刘明春(1966-),男,青海互助人,高级工程师,主要从事生态与农业气候资源开发研究工作.E-mail:liumcwwqxj@163.com
基金资助:
甘肃省气象局第五批"十人计划"资助

Long-term Change of Ground Temperature in the Shiyang River Basin

LIU Ming-chun^1,2, LI Ling-ping²

1. Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China;
2. Wuwei City Meteorological Bureau, Wuwei 733000, Gansu Province, China

Received:2010-05-06 Revised:2010-06-13 Online:2011-06-25 Published:2011-09-06

摘要/Abstract

摘要： 利用1961-2007年石羊河流域当地气象站的逐月平均地面0 cm温度资料,研究近 47年石羊河流域年平均地表温度的变化趋势、气候突变和异常年份等。结果表明:47年来,流域地温总体呈上升趋势,20世纪60-70 年代地温呈降低趋势,80年代中期开始升温,90年代和2001-2005年初地温呈明显上升趋势;流域地温下游上升速度最快,其次是中游,上游上升速度最慢。流域年平均地温60-80年代春、夏、冬季均呈下降趋势,80年代秋季、90年代和2001-2005年四季都呈上升趋势,年平均地温的升高主要是冬季和春季增温的贡献;年平均地温7月达到最高,1月最低;年平均地温在时间序列上存在明显6～7年、9～10年周期反映和2～3年的短周期;石羊河流域地温在1989年为一明显的增温突变,随后开始迅速升温。石羊河流域年平均地温异常偏暖以及显著偏暖与本地干旱指数有很好的对应关系。

关键词: 地表温度, 年际变化, 异常年份, 气候突变, 石羊河流域

Abstract: In this paper, the variation trend, abrupt change and anomalous years of annual and seasonal ground temperature in the Shiyang River Basin in 47 years are analyzed based on the monthly ground temperature data observed in the upper, middle and lower reaches of the drainage basin during the period of 1961-2007. The results show that the ground temperature was holistically in an increase trend, and it was decreased during the period from the 1960s to the 1970s, increased in the mid-1980s, and increased obviously during the period from the 1990s to 21st century; the increase of ground temperature was the highest in the lower reaches, then in the middle reaches, and it was the lowest in the upper reaches. Ground temperature in the Shiyang River Basin in spring, summer and winter was in a decrease trend during the period from the 1960s to the 1980s but in an increase trend in autumn of the 1980s, and the seasonal ground temperature was increased during the period from the 1990s to 21st century. Ground temperature increase made a contribution to heat increase in spring and winter, and the maximum and minimum ground temperatures occurred in July and January respectively. Temporally, there were the ground temperature fluctuation periods of 6-7 a and 9-10 a in the Shiyang River Basin, a sharp ground temperature increase has occurred since 1989, and the low ground temperature occurred mainly during the period from the late-1960s to the 1970s.

Key words: ground temperature, interannual variation, anomalous year, sharp climate change, Shiyang River Basin

中图分类号:

P423.3

刘明春, 李玲萍. 石羊河流域地表0 cm温度的长期变化[J]. 干旱区研究, 2011, 28(3): 478-484.

LIU Ming-chun, LI Ling-ping. Long-term Change of Ground Temperature in the Shiyang River Basin[J]. , 2011, 28(3): 478-484.

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