| 沱江流域20世纪中后期径流变化分析 |
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| 引用本文： | 蒋乾.沱江流域20世纪中后期径流变化分析[J].内江师范学院学报,2012,27(12):54-58. |
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| 作者姓名： | 蒋乾 |
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| 作者单位： | 内江师范学院地理与资源科学学院,四川内江,641100 |
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| 摘 要： | 以沱江流域为研究对象，选取位于干流中游的登瀛岩水文站实测资料．埘径流年内和年际变化进行分析，利用统计分析法、累积距平法等方法进行相关分析。通过对该水文站二十世纪中后期的观测数据进行分析和计算，表明沱江径流年内分配不均，具有典型季节性，多年变化平缓，呈现略微减少的趋势。为流域中长期水资源开发利用提供了理论依据，具有较强的实践指导价值。
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| 关 键 词： | 沱江流域 径流变化 变差系数 20世纪 |
An Analysisof Runoff Changes of Tuojiang River Basin in the Late Twentieth Century ~ |
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| JIANG Qian.An Analysisof Runoff Changes of Tuojiang River Basin in the Late Twentieth Century ~[J].Journal of Neijiang Teachers College,2012,27(12):54-58. |
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| Authors: | JIANG Qian |
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| Institution: | JIANG Qian(College of Geography and Resources Science,Neijiang Normal University,Neijiang,Sichuan 641100,China) |
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| Abstract: | Based on the data of Dengyingyan Hydrologic Station, efforts were focused on the Tuojiang River to analyze the yearly and inter-annual changes of the runoff by means of Statistical Analysis Method and Cumulative Average Method. And the analysis of the data of the late twentieth century shows that the Runoff Distribution of the year is not even and of a typically seasonal variation in Tuojiang River, over the years it changes gently, taking a slightly descending tendency. The findings are of a strong realistic value and provide a theoretical basis for the long-term development and utilization of water resources. |
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| Keywords: | Tuojiang River basin runoff change coefficient of variation |
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