| 升钟水库降水分布特征及其影响因素 |
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| 引用本文： | 葛毅华.升钟水库降水分布特征及其影响因素[J].气象,1996,22(7):21-25. |
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| 作者姓名： | 葛毅华 |
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| 作者单位： | 湖南省气象科技开发中心!长沙，410007 |
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| 摘 要： | 作者从流域地形，气候变化以及水库影响３个方面来探讨四川省升钟水库运行初期水量不足的原因，分析结果表明，建库前后库区及库周地区年降水量时空分布趋势一致，所不同的是建库后较之建库前各地年降水量普遍偏少２００ｍｍ左右，在库周各地建库前后地形不变，且水库蓄水后对为中周站年降水量最大影响为减少近４０ｍｍ，且建库后３年连年姓严重干旱说明气候对降水的影响比水库的影响要大得多，气候变化是影响水库运动初期水量不足的
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| 关 键 词： | 水库 降水 分布特征 影响因素 蓄水量 |
The Distributive Characteristic of Precipitation in Shengzhong Reservoir and Its Effective Factors |
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| Ge Yihua.The Distributive Characteristic of Precipitation in Shengzhong Reservoir and Its Effective Factors[J].Meteorological Monthly,1996,22(7):21-25. |
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| Authors: | Ge Yihua |
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| Abstract: | From three factors: valley's landforms, climatic changes and reservoir's effects, the cause is discussed that the Shengzhong reservoir in Sichuan province initially contains no enough water.Analytical result shows that there is no difference of the tendency distribution in space and time of the annual precipitation in the reservoir's location and nearby surrounding area. After its construction, the amount of precipitation around the reservoir is reduced that is less about 200mm than before. All the station's terrain around the reservoir is unchanged. After the reservoir storing water, the greatest impact is that the arnount of precipitation reduces nearly 40mm of points around it. There was a severe successive three-year drought after its construction. This suggests that the effect of climate on precipitation is much stronger than that of the reservoir. So climatic changes is the main cause that influences water amount of the reservoir during its initial use. |
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| Keywords: | reservoir landform climate precipitation |
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