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气象:1996,22(7):21-25
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升钟水库降水分布特征及其影响因素
The Distributive Characteristic of Precipitation in Shengzhong Reservoir and Its Effective Factors
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中文摘要: 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,且水库蓄水后对库周站点年降水量最大影响为减少近40mm,且建库后3年连年发生严重干旱。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行初期水量不足的主要原因。
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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引用文本:
葛毅华,1996.升钟水库降水分布特征及其影响因素[J].气象,22(7):21-25.
,1996.The Distributive Characteristic of Precipitation in Shengzhong Reservoir and Its Effective Factors[J].Meteor Mon,22(7):21-25.