为了解锡林郭勒地区对全球气候变化的响应程度，并为生态资源的开发利用提供可靠的基础依据。根据锡林郭勒地区15个气象站1960—2009年基本气象观测资料，运用一元线性回归、线性倾向估计、相关分析等数理统计方法，分析锡林郭勒地区近50年气候变化特征。结果表明，气温变化呈显著上升趋势，增温速率为0.43℃/10年，地表平均气温上升约1.6℃，气候生长期平均增加了7.1天。与全球、北半球、中国变化趋势基本一致，气温变化幅度大于全球。四季平均气温均呈上升趋势，其中冬季和春季上升趋势最为明显，秋季次之，夏季变化最小。地面风速呈显著减小趋势，变化速率为-0.28 (m/s)/10年。降水量、日照时数、蒸发量无显著变化趋势。锡林郭勒地区近50年的气候变暖趋势明显，全球变暖的大背景是影响该地区气温变化的主要因素，个别气象要素的变化趋势和速率具有区域性差异。

In order to learn the degree of response of Xilingole Area to the global climate change, and supply a dependable basis for the exploitation and utilization of ecological resources, according to the basic meteorological data of 15 weather stations in Xilingole area from 1969 to 2009, with statistical methods such as one linear regression, linear trend analysis, correlation analysis, this article analyzed and studied climate change nearly 50 years in Xilingole area. The results showed that temperature change increased significantly with increasing rate as 0.43℃/10 a, the average temperature rised about 1.6℃ and climate growing period increased an average of 7.1 d. It had basically unanimous changing tendency with that of global, northern hemisphere and China, and the temperature in Xilingole area varied over a much wider range than the world. Seasonal average temperature had increasing trend, and the fastest increased in winter and spring, the slowest in summer and autumn. Moreover, surface wind speed decreased significantly with change rate as -0.28(m/s)/10 a. Precipitation, sunshine hours and evaporation had no significant change. The climate warming tendency was obvious nearly 50 years in Xilingole area, global warming was the main factor which effected temperature change in this area. The change tendency and rate of very few meteorological factors had regional differences.