利用中国西北地区(75~105°E、35~50°N)最近44年(1958~2001年)77个气象台站观测的降水量、气温资料以及NCAR/NCEP再分析资料,采用回归分析与合成分析等方法研究了西北干旱区降水量的时空变化特征及其与全球气温变化的关系。结果表明,西北干旱区的降水量偏多(偏少)与全球平均气温升高(降低)存在一定的对应关系,但降水量随气温的变化存在地域差异,主要表现为干旱区的西部(93°E以西)区域年降水量随全球气温升高呈现增加趋势,而东部(93°E以东)区域年降水量呈减少趋势。
Based on climatic data of precipitation and temperature of 77 meteorological stations covering 1958-2001 in the northwestern China (the area is within the north of 35癗 and west of 105癊 in China) as well as the NCAR/NCEP reanalyzed data, and by using the methods of regressive analysis and composition analysis, the inter-annual variation of the precipitation over the northwestern China as well as its relationship with global warming were studied. The results show that there exists relationship between the anomalies of precipitation over the northwestern China and that of the global mean temperature. However, the trends of precipitation with temperature are different in west (west of 93癊) and east part (east of 93癊) of the northwestern China. In west part the precipitation has increased with global warming in the past 44 years, while in east part the precipitation declined.
[1] 秦大河,丁一汇,王绍武,等.中国西部生态环境变化与对策建议[J].地球科学进展,2002,17(3):314～318.
[2] 程国栋,张志强,李锐.西部地区生态环境建设的若干问题与建议对策[J].地理科学,2000,20(6):503～510.
[3] 姜逢清,朱诚,穆桂金,等.新疆绿洲当代人地关系紧张情势与缓解途径[J].地理科学,2003,23(2):157～163.
[4] 靳立亚,秦宁生,吴永森.中国西北地区不同季节降水气温异常的时空分布及其与西北干旱的关系[A].孙国武(主编).中国西北干旱气候研究[C].北京:气象出版社,1997.
[5] 谢金梦."西北地区干旱预测系统研究"专题研究成果综述[A].谢金南(主编).中国西北干旱气候变化与预测研究(1～3卷)[C].北京:气象出版社,2000.
[6] 韦志刚,董文杰,惠小英.中国西北地区降水的演变趋势和年际变化[J].气象学报,2000,58(2):234～243.
[7] 宋连春,张存杰.20世纪西北地区降水量的变化特征[J].冰川冻土,2003,25(2):143～148.
[8] 李栋梁,魏丽,蔡英,等.中国西北现代气候变化事实与未来趋势展望[J].冰川冻土,2003,25(2):135～142.
[9] 施雅风,沈永平,李栋梁,等.中国西北气候由暖干向暖湿转型的特征和趋势探讨[J].第四纪研究,2003,23(2):152～164.
[10] 姜逢清,朱诚,胡汝骥.1960～1997年新疆北部降水序列的趋势探测[J].地理科学,2002,22(6):669 672.
[11] 张丽旭,魏文寿.天山西部中山带积雪变化趋势与气温和降水的关系--以巩乃斯河谷为例[J].地理科学,2002,22(1):67～71.
[12] Houghton J T, Ding Y, Griggs D J, et al(Eds). Climate Change 2001: The Scientific Basis[ M]. London: Cambridge University Press, 2001. 944.
[13] Mann M E, Amman C, Bradley R, et al. On the past temperatures and anomalous late-20th century warmth [ J]. EOS,2003,84 (27):256.
[14] Wang S, Gong D. Enhancement of the warming trend in China[J]. Geophysics Research Letters, 2000, 27:2581-2584.
[15] 李新周,刘晓东,马柱国.近百年来全球主要干旱区的干旱化特征分析[J].干旱区研究,2004,21(2):97～103.
[16] Arnell N W. Climate change and global resources[J]. Global Environmental change, 1999, (supps):31-49.
[17] Vorosmarty C J, Green P, Salisbury J, et al. Global water resources:Vulnerability from climate change arid population growth[J]. Science,2000,289:284-288
[18] 刘晓东,安芷生,方建刚,等.全球气候变暖条件下黄河流域降水的可能变化[J].地理科学,2002,22(5):513～519.
[19] 查小春,延军平.全球变化下秦岭南北河流径流泥沙比较分析[J].地理科学,2002,22(4):404～407.
[20] 延军平,汪西莉,孙虎,等.陕、甘干旱地区不同时段地表径流递减率的分析[J].地理科学,1999,19(6):532～535.
[21] 施雅风(主编).中国西北气候由暖干向暖湿转型问题评估[M].北京:气象出版社,2003.1～122.
[22] 赵宗慈,丁一汇,徐影,等.人类活动对20世纪中国西北地区气候变化影响检测和21世纪预测[J].气候与环境研究,2003,8(1):27～34.
[23] 姜大膀,王会军,郎咸梅.全球变暖背景下东亚气候变化的最新情景预测[J].地球物理学报,2004,47(4):590～596.
