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| 基于小波消噪的三江平原井灌区年降水随机预测模型 | |
| 引用本文： | 刘东,赵清,付强. 基于小波消噪的三江平原井灌区年降水随机预测模型[J]. 中国农村水利水电, 2010, 0(4): 4-7 |
| 作者姓名： | 刘东 赵清 付强 |
| 作者单位： | 1. 东北农业大学水利与建筑学院,哈尔滨,150030;东北农业大学农林经济管理博士后科研流动站,哈尔滨,150030 2. 黑龙江农垦建三江分局水务局,富锦,156300 3. 东北农业大学水利与建筑学院,哈尔滨,150030 |
| 基金项目： | 国家自然科学基金(No.30400275); 中国博士后科学基金(No.20080440832); 黑龙江省教育厅科学技术研究项目(No.11541024) |
| 摘 要： | 近些年来,由于水田面积迅速增加,导致三江平原井灌水稻区地下水位普遍下降,"吊泵"、局部超采现象时有发生。天然降水是地下水的重要补给来源,而年降水序列由于各种因素的影响往往含有噪声。为解决上述问题,以853农场为例,采用小波消噪技术和随机水文学方法对实测年降水资料进行消噪、差分和标准化处理,建立了年降水量小波随机耦合预测模型,精度检验结果表明,模型有效性和可靠性较高。该模型揭示了区域年降水量的时间变化规律,为853农场乃至整个三江平原充分利用天然降水、合理制定水稻灌溉制度以及地下水资源的可持续利用提供了科学依据。 |
| 关 键 词： | 三江平原；井灌水稻；年降水量；小波消噪；随机模型 |
| 收稿时间： | 2009-06-26 |
| 修稿时间： | 2009-10-28 |
Stochastic Forecasting Model of Annual Precipitation in Well Irrigation Paddy Areas in Sanjiang Plain Based on Wavelet Denoising |
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| LIU Dong , ZHAO Qing , FU Qiang. Stochastic Forecasting Model of Annual Precipitation in Well Irrigation Paddy Areas in Sanjiang Plain Based on Wavelet Denoising[J]. China Rural Water and Hydropower, 2010, 0(4): 4-7 | |
| Authors: | LIU Dong ZHAO Qing FU Qiang |
| Affiliation: | LIU Dong1,2,ZHAO Qing3,FU Qiang1(1.School of Water Conservancy , Civil Engineering,Northeast Agricultural University,Harbin 150030,China,2.Postdoctoral Scientific Research Mobile Station of Agricultural , Forestry Economic Management,3.Water Affairs Bureau of L, Reclamation,Jiansanjiang Branch in Heilongjiang Province,Fujin 156300,Heilongjiang Province,China) |
| Abstract: | The rapid increase in paddy field acreage has led to wide descending of groundwater level in well irrigation paddy areas in Sanjiang Plain in recent years.More and more hanging pumps and partial overpumping have taken place in this area.Nature precipitation is the important groundwater recharge source,and annual precipitation time-series affected by various factors always have noises.In order to solve the above-mentioned problems,Farm 853 is taken as an example,the wavelet-stochastic coupling forecasting mo... |
| Keywords: | Sanjiang Plain well irrigation paddy annual precipitation wavelet denoising stochastic model |
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