| 频谱分析法在吉林西部地下水动态预报中的应用 |
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| 引用本文： | 李平,卢文喜,杨忠平.频谱分析法在吉林西部地下水动态预报中的应用[J].水文地质工程地质,2005,32(4):70-73. |
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| 作者姓名： | 李平 卢文喜 杨忠平 |
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| 作者单位： | 吉林大学,环境与资源学院,长春,130026 |
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| 基金项目： | 国家自然科学基金资助项目 (4 0 2 73 0 47) |
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| 摘 要： | 本文应用频谱分析法对吉林西部的地下水动态进行了分析和预报,用傅立叶级数将消除趋势成分后的水位序列在一定区间上展开,分析谱参数之间的函数关系,建立预报模型。对模型进行分析可知该区地下水位存在两个主要周期(1年和6～8年) ,反映了地下水位的季节性变化和气候变化规律;2 0 0 2年以后的预报结果表明部分地区的地下水位将持续下降,应及时加以控制。为吉林西部的地下水开发和水资源管理提供了依据。
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| 关 键 词： | 频谱分析 周期成分 吉林西部 地下水位 动态预报 |
| 文章编号： | 1000-3665(2005)04-0070-04 |
| 修稿时间： | 2004年6月22日 |
Application of spectrum analysis method to the prediction of groundwater regime in west Jilin province |
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| LI Ping,LU Wen-xi,YANG Zhong-ping.Application of spectrum analysis method to the prediction of groundwater regime in west Jilin province[J].Hydrogeology and Engineering Geology,2005,32(4):70-73. |
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| Authors: | LI Ping LU Wen-xi YANG Zhong-ping |
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| Abstract: | In this paper, the spectrum analysis method is applied to the prediction of groundwater regime in west Jilin province. The water level sequence is expanded in a certain range after the trend is eliminated by using Fourier series. The relation among spectrum parameters is analyzed and the prediction model is set up. The model results show that the groundwater level in this area has two major periods, 1 year and 6 to 8 years, which reflect the seasonal and climatic variation of the groundwater level. The prediction result indicates that the groundwater level of several regions will decline continually, and measures should be taken in time. The results of this work can provide evidence for groundwater development and water resources management in this area. |
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| Keywords: | spectrum analysis periodic element west Jilin province groundwater level regime prediction |
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