干旱区生态环境知识资源中心(Arid): 中国干旱区气温变化对全球变暖的区域响应

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	中国干旱区气温变化对全球变暖的区域响应
其他题名	Regional Response of Temperature Change in the Arid Regions of China to Global Warming
	张雪芹 1; 孙杨 1; 毛炜峄 2; 刘芸芸 3; 任雨 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2010
卷号	27 期号:4 页码:592-599
中文摘要	选取中国干旱区77个气象站点1961-2007年的均一化气温资料, 采用线性倾向估计、Mann-Kendall检验和Morlet小波分析等方法, 研究了干旱区气温变化对全球变暖的区域响应. 分析表明: ① 我国干旱区气温变化对全球变暖响应显著且具有鲜明的区域特色. 1961-2007年, 我国干旱区年平均气温呈明显上升趋势, 约上升了1.8 ℃, 平均气温升温速率为0.39 ℃/10 a, 增暖幅度与波动幅度高于同期全球以及中国区域平均. ② 我国干旱区气温变化季节与区域差异显著. 各季平均气温均呈上升趋势, 其中秋、冬两季增温明显, 冬季气温线性变化率最大, 为夏季增温的两倍有余. 年均温与各季升温幅度区域差异较大, 其中北疆、阿拉善高原升温幅度最大, 南疆与河西走廊升温相对较慢. ③ 年均温与各季气温的年距平序列突变主要发生在20世纪80年代中期以后. 研究区各站点普遍存在着16~17年的年代际变化和6~7年的年际变化. 综合我国干旱区年均温距平序列及其突变时间和振荡周期, 可推断出干旱区气温将会持续以较高的变暖速率上升, 至少最近10年这种趋势不会改变. ④ 我国干旱区水热相互反馈作用错综复杂, 气候变暖如何影响干旱区水热相互反馈作用机制, 这将是进一步研究的重点.
英文摘要	Under global warming, there was an obvious regional differentiation of climate change all over the world in the 20th century. During the past 30 years, a wide range of global warming took place, with the most remarkable warming in the middle and higher latitudes of the Northern Hemisphere. In the 21st century, the regional warming becomes more significant in the arid regions of China (ARC for short), and simultaneously the occurring frequency of extreme weather events increases. Under the influence of human activities and climate change, the natural environment has changed dramatically, e.g., oasis degradation, land desertification, glacier retreat, water shortage, increasing natural disasters and obvious contradiction of the human-land relationship. Therefore, in the paper, the regional response of temperature change to global warming is investigated by using the daily temperature data at 77 typical meteorological stations in the ARC during the period from 1961 to 2007 and the methods of linear trend estimate, Mann-Kendall test and Morlet wavelet analysis. The results are as follows: (1) The response of temperature change in the ARC to global warming was characterized by the significant regional difference. The mean annual air temperature in the ARC was increased by 1.8 ℃ during the period of 1961-2007, its increase rate was 0.39 ℃/10 a, which was obviously higher than the average of the globe and whole China; (2) The mean seasonal temperature in the ARC was increased more significantly in winter and autumn than that in spring and summer. There was an obvious regional difference of increases in mean annual and seasonal temperature, e.g., the temperature was increased more significantly in north Xinjiang and the Alxa Plateau than that in south Xinjiang and the Hexi Corridor; (3) The abrupt change in temperature in the ARC occurred mainly after the mid-1980s. There were the 6-7-year annual temperature fluctuation periods and 16-17-year decadal ones. It can be inferred that the temperature in the ARC will be continuously increasing in the coming 10 years at least. Much more attention should be paid to studying how climate warming will affect the complex hydrological and thermal feedback mechanisms in the ARC.
中文关键词	全球变暖 ; 气温变化 ; 区域响应 ; 干旱区
英文关键词	global warming temperature change regional response arid region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3919838
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225080
作者单位	1.中国科学院地理科学与资源研究所, 北京 100101, 中国; 2.新疆维吾尔自治区气候中心, 乌鲁木齐, 新疆 830002, 中国; 3.国家气候中心, 北京 100081, 中国
推荐引用方式 GB/T 7714	张雪芹,孙杨,毛炜峄,等. 中国干旱区气温变化对全球变暖的区域响应[J],2010,27(4):592-599.
APA	张雪芹,孙杨,毛炜峄,刘芸芸,&任雨.(2010).中国干旱区气温变化对全球变暖的区域响应.干旱区研究,27(4),592-599.
MLA	张雪芹,et al."中国干旱区气温变化对全球变暖的区域响应".干旱区研究 27.4(2010):592-599.