【摘要】 干旱区红柳沙包是一种地质计年材料,并且是记录古气候环境信息的有效载体。文中在通过多种定年方法综合确定研究区红柳沙包沉积纹层年代序列后,实验分析得出红柳沙包沉积纹层中的δ¹⁸O含量,使用SPSS软件对δ¹⁸O含量与气候要素进行相关性分析和逐步回归分析,并重建安迪尔地区近200年来气候变化序列。结果表明:对δ¹⁸O变化影响最明显的是2月份日照时数和11月份平均气温;1792年以来,安迪尔气候总体上由冷干向暖湿方向发展,其中1792～1828年和1850～1917年为冷干期,1829～1849年和1918～2010年为暖湿期。更多还原

【Abstract】 In extremely arid area, the clear sedimentary veins of Tamarix cone can be used as a geologic counting method and provide lots of information on climate and environment for hundreds of years. Based on a comprehensive determination of the sedimentary age of the Tamarix cone in the study area through various dating methods, experimental analysis showed the content of δ¹⁸O in the sedimentary age of the Tamarix cone. SPSS software was used for correlation analysis and regression analysis to reconstruct the climate change sequence during the past 200 years in Andier region. The results of the study showed that the most significant effect on the change of δ¹⁸O was the sunshine hours in February and the average temperature in November. Since 1792, Andier’s climate had totally developed from cold and dry to warm and wet. Among them, the periods of 1792～1828 and 1850～1917 were cold and dry, and the periods of 1829～1849 and 1918-2010 were warm and wet.更多还原