干旱区生态环境知识资源中心(Arid): 科尔沁沙地乌兰敖都地区气温变化趋势分析

Arid

	科尔沁沙地乌兰敖都地区气温变化趋势分析
其他题名	Analysis on the Change Trend of Air Temperature in the Ulan’aodu Region in the Horqin Sandland
	蒋德明; 王红梅; 李雪华; 骆永明; 李晓兰
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2005
卷号	22 期号:3 页码:322-325
中文摘要	通过对乌兰敖都气象观测站23 a的观测资料分析表明,在全球气候逐渐变暖的背景下,科尔沁沙地乌兰敖都地区气候发生了显著的变化,气温的季节变化明显,春季、冬季温度有逐渐回升的趋势,冬季升温明显大于春季,作物生长期的温度也呈升高趋势;偏暖温和高温的年份出现频率较多,且这一趋势在近3 a表现明显.科尔沁沙地西部乌兰敖都地区在近15 a内正向暖温化方向发展,且以冬季变暖的趋势最为明显.
英文摘要	The study area (43°02’N, 119"39’E), the Ulan’aodu region, is located in the west Horqin Sand-land, the landforms are dominated by mobile dunes and semi-mobile dunes, and the region is the drought center in the upper and middle reaches of the west Liaohe River Watershed. It belongs to the temperate monsoon cli-mate, and its continental characteristics are significant. According to the climatic divisions of Inner Mongolia Autonomous Region, the region belongs to a semi-arid climatic zone, is characterized by the arid climate, less precipitation, frequent occurrence of strong winds and sand drift disasters, mobile and semi-mobile dunes, sparse vegetation, etc. The annual precipitation is 310 mm, the aridity index varies in a range of 1.0-1.8, the rela-tive humidity varies in a range of 50% -55% , and drought is serious in spring. Under the background of global warming, the climate in the Ulan’aodu region in Horqin Sandland is significantly changed, such as the air tem-perature increase, precipitation reduction and more serious droughts and sand drift disasters. In this paper, the 23-year (1981 - 2003) observation data observed by the meteorological stations in the Ulan’ aodu region are ana-lyzed. The results show that the change of air temperature in the Ulan’ aodu region has experienced the process-es of normal temperature -? low temperature -?■ high temperature ~ normal temperature -*■ temperature in-crease since 1981. The monthly maximum and minimum temperatures are increased to a certain extent, espe-cially the monthly minimum temperature. The change of seasonal temperature is significant, the temperature in-crease in spring and winter is significant, especially in winter, but it is not so obvious in summer and autumn. The occurring frequency of warm years and high-temperature years is high, especially in recent years. To sum up, the climate warming in the Ulan’aodu region in Horqin Sandland is significant, especially in winter since re-cent years. Thus, the ecological environment in the region will be further degenerated because the strong winds occur frequently in winter and spring, and the vegetation coverage is low.
中文关键词	气候 ; 温度 ; 暖温化 ; 乌兰敖都 ; 科尔沁沙地
英文关键词	Horqin Sandland climate temperature warming trend Horoqin sandland
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:2018296
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206236
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	蒋德明,王红梅,李雪华,等. 科尔沁沙地乌兰敖都地区气温变化趋势分析[J],2005,22(3):322-325.
APA	蒋德明,王红梅,李雪华,骆永明,&李晓兰.(2005).科尔沁沙地乌兰敖都地区气温变化趋势分析.干旱区研究,22(3),322-325.
MLA	蒋德明,et al."科尔沁沙地乌兰敖都地区气温变化趋势分析".干旱区研究 22.3(2005):322-325.