| 新疆伊犁地区现代气候特征与300a来的干湿变化规律 |
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| 引用本文： | 叶玮,袁玉江.新疆伊犁地区现代气候特征与300a来的干湿变化规律[J].中国沙漠,1999,19(2):97-103. |
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| 作者姓名： | 叶玮 袁玉江 |
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| 作者单位： | [1]中国科学院新疆生态与地理研究所 [2]新疆气象局气象科研所 |
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| 摘 要： | 在现代实测资料分析和利用树木年轮对伊犁地区３１４ａ降水重建研究的基础上，通过与历史资料在时间上的对比以及与中亚、中国东部和北疆地区小冰期以来气候变化模式在空间上的对比分析，发现３００ａ来伊犁地区的气候变化不仅具有冷与湿、暖与干相对应的特点，而且偏干年出现的频率多于偏湿年。在气候的干湿波动中，湿润期变短，而干旱期相对增长，反映了该区３００ａ来气候与北疆其它地区类似，在波动中存在着变干的趋势。
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| 关 键 词： | 伊犁地区 气候特征 干－湿变化 变化规律 |
The Modern Climatic Characteristics and Dry-Wet
Fluctuations
in the Past 300 Years in Yili Area, Xinjiang |
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| Abstract: | This paper has
analyzed the characteristics of the climatic changes based on the current meteorology data
in the recent 40 years of 9 meteorological stations in Yili area. Through 5 tree-ring
chronology series, the 314-year precipitation was well reconstructed and its explain
variance was 75%. The paper also has compared the features of climatic changes in Yili
with the neighboring areas(the other areas of Xinjiang, Gansu, Qinhai provinces, China and
Central Asia), and obtained some beneficial results as follows |
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| Keywords: | Yili region\ Climatic characteristics\ Dry wet fluctuation |
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