| 渭河流域近50年降水特征变化及其对水资源的影响 |
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| 引用本文： | 刘燕,胡安焱.渭河流域近50年降水特征变化及其对水资源的影响[J].干旱区资源与环境,2006,20(1):85-87. |
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| 作者姓名： | 刘燕 胡安焱 |
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| 作者单位： | 长安大学水资源与环境工程系,西安,710054 |
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| 摘 要： | 以黄河第一大支流渭河流域为研究对象,基于长期水文观测资料,就不同时间尺度(包括月、年、10年)降水特征及其变化规律进行了分析,结合水资源变化的分析结果,对流域水资源变化的动因进行探讨,指出降水减少是渭河流域水资源减少的最直接、最主要的原因,此外,人类活动影响也起到一定的作用。
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| 关 键 词： | 渭河流域 降水特征变化 水资源 人类活动 |
| 文章编号： | 1003-7578（2006）01-085-03 |
| 收稿时间： | 2004-09-17 |
| 修稿时间： | 2004年9月17日 |
Changes of Precipitation Characters Along Weihe Basin in 50 Years and Its Influence on Water Resources |
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| LIU Yan,HU An-yan.Changes of Precipitation Characters Along Weihe Basin in 50 Years and Its Influence on Water Resources[J].Journal of Arid Land Resources and Environment,2006,20(1):85-87. |
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| Authors: | LIU Yan HU An-yan |
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| Abstract: | Based on the long hydrological observation records,the precipitation characters ranged from months to decades and its variations′regularities were discussed by taking example of Weihe River—the largest tributary of Yellow River.According to the analysison the changes of water resources,the motivation of changes was analyzed,and it was pointed out that: The decrease of precipitation and the influence of human activities are the most direct and important reasons for the decrease of water resources in Weihe Basin. |
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| Keywords: | Weihe Basin changes of precipitation characters water resources human activities |
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