青藏铁路沿线1966-2004 年 冻结与融化指数的变化趋势
收稿日期: 2007-03-12
修回日期: 2007-07-05
网络出版日期: 2007-09-25
基金资助
中国科学院新疆生态与地理研究所知识创新工程所长基金项目资助
Variation Tr ends of the Freezing and Thawing Index along the Qinghai-Xizang Railway for the Per iod 1966-2004
Received date: 2007-03-12
Revised date: 2007-07-05
Online published: 2007-09-25
Supported by
Knowledge Innovation Project of Xinjiang Institute of Ecology and Geography, CAS
利用日气温观测值计算了青藏铁路沿线7 个主要气象站1966-2004 年的年冻结与融化指数，分析了这些指数的统计与分布特征，并应用两种趋势检验方法：非参数Mann-Kendall 检验法和简单线性回归法分析了这些台站年冻结与融化指数的变化趋势。结果表明，青藏铁路沿线多年平均冻结指数大致分布在95~2300 oC·日之间， 多年平均融化指数大致在630~3250 oC·日之间。7 个站点的冻结指数均呈减少趋势，其线性倾向率分布在-16.6~-59.1 oC·日/10a 之间；融化指数均呈增加趋势，其线性倾向率分布在19.8~45.6 oC·日/10a 之间。MK 趋势检验的结果显示，除格尔木表现出微弱的减少趋势外，其他站点都呈现了0.05 水平 下的显著减少趋势；年融化指数除格尔木和沱沱河表现出弱增加趋势外，其他5 个台站都显示出了0.05 水平下的显著增加趋势。简单线性回归方法得到的趋势结果与MK 趋势检验结果相一致。
姜逢清, 胡汝骥, 李珍 . 青藏铁路沿线1966-2004 年 冻结与融化指数的变化趋势[J]. 地理学报, 2007 , 62(9) : 935 -945 . DOI: 10.11821/xb200709005
Yearly freezing and thawing index for seven main stations along the Qinghai-Xizang Railway were calculated based on daily maximum and minimum temperature records for the period 1966-2004. Statistical characteristics and variations of the annual freezing and thawing index for these stations were outlined. Trends in annual freezing and thawing index for these stations were analyzed using two methods, namely a non-parametric trend test method, i.e. the Mann-Kendall test and a simple linear regression method. The results show that the mean annual freezing index for these stations ranges from 95 to 2300 oC, and the mean annual thawing index ranges from 630 to 3250 oC. The mean annual freezing index of the seven stations exhibited decreasing trends with linear tendencies ranging from -16.6 to -59.1 oC/10a, and the mean annual thawing index of the seven stations showed increasing trends with linear tendencies ranging from 19.83 to 45.6 oC/10a. The results of the MK trend test show that the significant decreasing trends in the annual freezing index for most stations except for Golmud were detected at the 0.05 significant level. The increasing trends in the annual thawing index for four stations except Golmud and Tuotuohe were determined by the MK method at the 0.05 significant level. Golmud was the only station where no significant trends in both the annual freezing and thawing index were found. Results from the simply linear regression method are similar with that from the MK test.
[1] Niu Tao, Liu Hongli, Song Yan et al. Study on decade change of climate shift from warm-dry period to warm-wet period over Tibetan Plateau. Journal of Applied Meteorological Science, 2005, 16(6): 763-771.
[牛涛, 刘洪利, 宋燕等. 青藏高原气候由暖干到暖湿时期的年代际变化特征研究. 应用气象学报, 2005, 16(6): 763-771.]
[2] Li Lin, Li Fengxia, Guo Anhong et al. Study on the climate change trend and its catastrophe over"Sanjiangyuan"Region in recent 43 years. Journal of Natural Resources, 2006, 21(1): 79-85.
[李林, 李凤霞, 郭安红等. 近43 年来“三江源” 地区气候变化趋势及其突变研究. 自然资源学报, 2006, 21(1): 79-85.]
[3] Liu X, Chen B. Climatic warming in the Tibetan Plateau during recent decades. International Journal of Climatology, 2000, 20: 1729-1742.
[4] Wu Q, Liu Y. Ground temperature monitoring and its recent change in Qinghai-Tibet Plateau. Cold Regions Science and Technology, 2004, 38: 85-92.
[5] Jin Huijun, Li Shuxun, Wang Shaoling et al. Effects of climate change on permafrost and environment in cold region of China. Acta Geographica Sinica, 2000, 55(2): 161-173.
[金会军, 李述训, 王绍令等. 气候变化对中国多年冻土和寒区 环境的影响. 地理学报, 2000, 55(2): 161-173.]
[6] Wang S, Jin H, Li S et al. Permafrost degradation on the Qinghai-Tibet Plateau and its environmental impacts. Permafrost and Periglacial Processes, 2000, 11: 43-54.
[7] Cheng Guodong, Jiang Hao, Wang Keli et al. Thawing index and freezing index on the embankment surface in permafrost regions. Journal of Glaciology and Geocryology, 2003, 25(6): 603-607.
[程国栋, 江灏, 王可丽等. 冻土路基 表面的融化指数与冻结指数. 冰川冻土, 2003, 25(6): 603-607.]
[8] King L, Herza T, Hartmanna H et al. The PACE monitoring strategy: A concept for permafrost research in Qinghai-Tibet. Quaternary International, 2006, 154/155: 149-157.
[9] Zhang T, Osterkamp T E, Stamnes K. Effects of climate on the active layer and permafrost on the north slope of Alaska, U.S.A. Permafrost and Periglacial Processes, 1997, 8: 45-67.
[10] Frauenfeld O W, Zhang Tingjun, James L. Mccreight. Northern Hemisphere freezing/thawing index variations over the twentieth century. International Journal of Climatology, 2007, 27: 47-63.
[11] Partal Turgay, Ercan Kahya. Trend analysis in Turkish precipitation data. Hydrological Processes, 2006, 20: 2011-2026.
[12] Yue S, Pilon P, Caradias G. Power of the Mann-Kendall and Spearman's rho tests for detecting monotonic trends in hydrological series. Journal of Hydrology, 2002, 259: 254-271.
[13] Serrano A, Materos V L, Garcia J A. Trend analysis of monthly precipitation over the Iberian Peninsula for the period 1921-1995. Phys. Chem. Earth (B), 1999, 24(1/2): 85-90.
[14] Wang Jiacheng, Wang Shaoling, Qiu Guoqing. Permafrost along the Qinghai-Xizang Highway. Acta Geographica Sinica, 1979, 34(1): 18-32.
[王家澄, 王绍令, 邱国庆. 青藏公路沿线的多年冻土. 地理学报, 1979, 34(1): 18-32.]
[15] Gao Rong, Wei Zhigang, Dong Wenjie. Interannual variation of the beginning date and the ending date of soil freezing in the Tibetan Plateau. Journal of Glaciology and Geocryology, 2003, 25(1): 49-54.
[高荣, 韦志刚, 董文杰. 青藏高原土壤冻结始日和终日的年际变化. 冰川冻土, 2003, 25(1): 49-54.]
[16] Wang Chenghai, Dong Wenjie, Wei Zhigang. The feature of seasonal frozen soil in Qinghai-Tibet Plateau. Acta Geographica Sinica, 2001, 56(5): 523-531.
[王澄海, 董文杰, 韦志刚. 青藏高原季节性冻土年际变化的异常特征. 地 理学报, 2001, 56(5): 523-531.]
[17] Houghton J T, Ding Y (eds.). Climate Change 2000. The Scientific Basis. Cambridge, UK: Cambridge University Press, 2001. 770.
[18] Xu Ying, Zhao Zongci, Li Dongliang. The simulated result analyses on climate changes over Qinghai-Xizang Plateau and along the railway in the coming 50 years. Plateau Meteorology, 2005, 24(5): 700-707.
[徐影, 赵宗慈, 李栋梁. 青 藏高原及铁路沿线未来50 年气候变化的模拟分析. 高原气象, 2005, 24(5): 700-707.]
[19] Wang Wen, Li Dongliang, Cheng Guodong. The prediction and probability estimation of mean maximum and minimum air temperature along Qinghai-Xizang Railway. Plateau Meteorology, 2005, 24(3): 304-310.
[王文, 李栋梁, 程国栋. 青 藏铁路沿线平均最高最低气温变化趋势预测及其概率估计. 高原气象, 2005, 24(3): 304-310.]
[20] Wu Qingbai, Li Shuxun, Liu Yongzhi. The impact of climate warming on permafrost and Qinghai-Tibet Railway. Engineering Sciences, 2006, 4(2): 92-97.
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