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基于1960年以来中国天山各流域冰川面积变化的统计分析,系统地研究了中国天山冰川面积变化对气候的响应情况。结果表明,近50年来中国天山冰川的面积缩小了11.5%,对研究时段统一化后发现面积年均退缩率为0.31%a-1。各流域冰川面积退缩速度存在一定差异,但冰川加速消融趋势明显。天山地区14个气象站的气温与降水量倾向率平均值分别为0.34oC·(10a)-1与11mm·(10a)-1,气温在干季增幅大而在湿季增幅略小,降水量在干季增长缓慢而在湿季增长显著,这样的气候变化趋势有助于天山冰川的退缩。
Based on the statistical analysis of glacier area changes in different valleys of the Tianshan Mountains in China since 1960, the response of glacier area changes in China to climate was systematically studied. The results show that in the past 50 years, the area of glaciers in China’s Tianshan Mountains has shrunk by 11.5%. After the study period was unified, the average annual shrinkage rate of the glaciers was 0.31% a-1. There is a certain difference in the rate of retreat of glacier area in each basin, but the glacier accelerates the ablation tendency obviously. Temperatures and precipitation trends of 14 weather stations in Tianshan Mountains were 0.34oC · (10a) -1 and 11mm · (10a) -1, respectively. Temperatures increased in dry season but slightly increased in wet season. Precipitation Slow growth in the dry season and significant growth in the wet season, this trend of climate change contributes to the retreat of the Tianshan glacier.