【摘 要】
：
对古里雅冰心积累量与太阳活动的关系进行了研究 ,探讨了中国过去 2 0 0 0 a降水变化的区域分异。结果表明 :过去 2 0 0 0 a古里雅冰心积累量在百年尺度以上受到了太阳活动的
【机 构】
：
中国科学院兰州寒区旱区与环境工程研究所!兰州730000,中国科学院兰州寒区旱区与环境工程研究所!兰州730000中国科学院南京地理与湖泊研究所,南京210008
论文部分内容阅读
对古里雅冰心积累量与太阳活动的关系进行了研究 ,探讨了中国过去 2 0 0 0 a降水变化的区域分异。结果表明 :过去 2 0 0 0 a古里雅冰心积累量在百年尺度以上受到了太阳活动的作用 ;以公元 6 0 0年为界 ,之前古里雅冰心积累量和中国东部干湿序列变化基本一致 ,之后二者变化相反 ;近 2 0 0 0 a青藏高原西北部与高原南部的降水变化基本一致 ,而与高原东北部的干湿变化位相相反 ;在中世纪暖期 (10 0 0～ 130 0 AD)北半球以干旱气候为主。
The relationship between the accumulation of Guli ice core volume and solar activity was studied, and the regional variation of precipitation in China over the past 200 years was discussed. The results show that in the past 200 years, the accumulation of Guli ice core has been affected by the solar activity over the centennial scale. By the year of AD 600, the accumulation of previous Guli ice core is basically the same as that of the eastern China wet-dry sequence, After that, the change of precipitation in the northwestern part of the Tibetan Plateau and the southern part of the plateau was basically the same, but opposite to that in the northeastern part of the plateau. In the middle-warm period (10 0 ~ 130 0 AD) The northern hemisphere is dominated by arid climate.
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