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中国干旱灾害的时空变化及其与直接经济损失的关联性研究
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Spatiotemporal variation characteristics of drought disaster in China and correlations with direct economic losses
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图3. 1961—2022年全国、季风区和非季风区逐月平均的不同等级干旱日数变化 |
Fig.3. Changes of monthly mean days of drought with different grades in China, monsoon and non-monsoon regions during 1961-2022 |
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