| 近50年来中国沙尘暴变化趋势分析 |
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| 引用本文： | 范一大,史培军,周俊华,冀萌新. 近50年来中国沙尘暴变化趋势分析[J]. 自然灾害学报, 2005, 14(3): 22-28 |
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| 作者姓名： | 范一大 史培军 周俊华 冀萌新 |
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| 作者单位： | 1. 北京师范大学,环境演变与自然灾害教育部重点实验室,北京,100875;民政部国家减灾中心,北京,100053
2. 北京师范大学,环境演变与自然灾害教育部重点实验室,北京,100875;北京师范大学资源学院,北京,100875 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 综述了关于我国沙尘暴时空分布规律的研究进展,利用117个沙尘暴代表站近50年来的气象观测数据,以沙尘暴出现日数为定量指标,采用相关分析的方法,对我国沙尘暴的变化趋势进行了分析,并针对中国北方的草原区、荒漠区和农业区,进行了变化趋势分析.结果表明:近50年来,我国北方沙尘暴天气总体呈下降趋势,沙尘暴发生频率与下垫面状况有着很好的对应关系,同时,沙尘暴有着明显的年代级变化规律.
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| 关 键 词： | 沙尘暴 时空分布 变化分析 |
| 文章编号： | 1004-4574(2005)03-0022-07 |
Research on change of dust storm in China in recent 50 years |
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| FAN Yi-da,SHI Pei-jun,ZHOU Jun-hua,Ji Meng-xin. Research on change of dust storm in China in recent 50 years[J]. Journal of Natural Disasters, 2005, 14(3): 22-28 |
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| Authors: | FAN Yi-da SHI Pei-jun ZHOU Jun-hua Ji Meng-xin |
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| Abstract: | This paper firstly reviews the advance in the research on spatial-temporal variability of dust storms in ~China and then based on the ground observation data of 117 stations in 50 years and using dust storm days as the index, the change of dust storms is analyzed by the correlation analysis. In addition, the paper does some research on the change of the grassland, desert, and agricultural area in northern China. The results shows that: in recent 50 years, the dust storm weather deceased as a whole, and the frequency of dust storm has a very correlative relationship with the ground condition, meanwhile, the dust storms has obvious inter-decade change in last 50 years. |
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| Keywords: | dust storm spatiotemporal distribution change analysis |
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