干旱区生态环境知识资源中心(Arid): 近56年来科尔沁沙地气候变化特征

Arid

	近56年来科尔沁沙地气候变化特征
其他题名	Characteristics of climate change in Horqin Sandy Land in past 56 years
	渠翠平; 关德新; 王安志; 金昌杰; 袁凤辉; 吴家兵; 倪攀
ISSN	1000-4890
出版年	2009
卷号	28 期号:11 页码:2326-2332
中文摘要	根据1951-2006年的气温和降水资料,研究了干旱少雨、生态环境脆弱、土地荒漠化严重的科尔沁沙地近56年的气候变化特征.结果表明:1951-2006年,科尔沁沙地的气温以0.28℃·10 a~(-1)的速度上升,远大于全球近50年来0.13℃·10 a~(-1)的平均增温速率;各季节气温都呈上升趋势,冬、春季增温速率极显著(P<0.001),增温速率分别为0.46和0.39℃·10 a~(-1);年最高气温(0.17℃·10 a~(-1))与年最低气温(0.42℃·10 a~(-1))均呈极显著地增加趋势(P<0.01);降水量年际间波动较大,无明显的变化趋势,各季节降水量也没有明显的变化规律;年降水日数呈显著减少趋势(1.3 d·10 a~(-1)),各季的降水日数虽都有逐年减少趋势,但没有达到显著水平;年降水强度和各季降水强度都没有明显的变化规律;年总小雨日数呈显著的减少趋势(P<0.05),减少速率为1.0 d·10 a~(-1).
英文摘要	Based on the 1951-2006 air temperature and precipitation data from seven meteoro-logical stations in Horqin Sandy Land, the past 56-year climate change characteristics in this semi-arid area with vulnerable eco-environment and severe land desertification were analyzed. From 1951 to 2006, the mean annual air temperature in this area increased by 0. 28℃·10 a~(-1), much higher than the global average value of 0.13℃·10 a~(-1) in recent 50 years. The increasing trend of the temperature appeared in all four seasons, but was only significant in winter and spring (P<0.01), with an increasing rate of 0. 46℃·10 a~(-1) and 0.39℃·10 a~(-1), respec-tively. Both the maximum and the minimum mean annual temperatures increased significantly (P <0. 01), and the increasing rate was about 0.17℃·10 a~(-1) and 0.42℃·10 a~(-1), respec-tively. The annual precipitation fluctuated among years, with no obvious change trend at yearly and seasonal scales, while the precipitation days decreased significantly at yearly scale (1.3 d·10 a~(-1)) but not at seasonal scale. No obvious change patterns were observed in the precipitation intensity both in yearly and seasonal scales. The annual light-rain days decreased significant (P <0.05) in a rate of 1.0 d·10 a~(-1).
中文关键词	科尔沁沙地 ; 气候变化 ; 气候倾向率 ; 气温 ; 降水量
英文关键词	Horqin Sandy Land climate change climatic trend air temperature preclpltation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3716528
来源机构	中国科学院沈阳应用生态研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224113
作者单位	中国科学院沈阳应用生态研究所, 沈阳, 辽宁 110016, 中国
推荐引用方式 GB/T 7714	渠翠平,关德新,王安志,等. 近56年来科尔沁沙地气候变化特征[J]. 中国科学院沈阳应用生态研究所,2009,28(11):2326-2332.
APA	渠翠平.,关德新.,王安志.,金昌杰.,袁凤辉.,...&倪攀.(2009).近56年来科尔沁沙地气候变化特征.,28(11),2326-2332.
MLA	渠翠平,et al."近56年来科尔沁沙地气候变化特征".28.11(2009):2326-2332.