青铜峡灌区
- 网络qingtongxia irrigation area
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青铜峡灌区用水管理系统开发及应用研究
On exploitation and application of water management system in Qingtongxia irrigation area
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宁夏青铜峡灌区水土化学场演化态势初步分析
Evolvement trend of water-soil chemical field in Qingtongxia Irrigation Area
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基于AHP的青铜峡灌区农民用水者协会(WUA)项目后评价
Post-project evaluation of Water Users Association ( WUA ) in Qingtongxia based on AHP
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分析了神经网络的GN-BFGS学习算法的基本工作原理及其方法,并利用该方法建立了宁夏青铜峡灌区退水量预测模型。
This paper analyses the basic working principle and its method of GN-BFGS learning algorithm of neural network , on the basis of using this method , the model for prediction of drainage water volume in Qingtong Gorge Irrigation District of Ningxia Hui Autonomous Region is established .
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宁夏青铜峡灌区退水规律研究
Study on the Regularity of Drainage Water Volume of Qingtongxia Irrigation Area of NingXia
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青铜峡灌区引黄耗水量的影响因素及其时空变异规律研究
Study on Influencing Factors of Water Consumption and Their Spatial-temporal Variability in Qingtongxia Irrigation Area
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青铜峡灌区农民用水协会建设与运行中存在的问题及对策
Problems and countermeasures in construction and operation of Water Users Association of Farmers in Qingtongxia irrigation area
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宁夏青铜峡灌区水土盐量的衰减和积聚进程分析
Analysis on the process of deduction and accumulation of salinity in phreatic water and soil in irrigation area
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宁夏青铜峡灌区农区非农区的水盐均衡研究
Study on the water and salt balance of farming areas and non-farming areas in Ningxia Qingtongxia irrigation area
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青铜峡灌区作为国内大型灌区之一,有着非常悠久的历史。
Qingtongxia Irrigation Area as one of the domestic large-scale irrigation area , has a very long history .
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针对这些因子提出提高青铜峡灌区灌溉水有效利用系数的具体措施。
According to these factors , putting forward specific measures which can improve Qingtongxia irrigation district irrigation water use coefficient .
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宁夏青铜峡河西灌区水文及水文地质参数研究
Study on hydrologic and hydrogeologic parameters for west irrigated areas of Qingtong Gorge of Ningxia
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采用逐步线性回归和神经网络理论首次建立了青铜峡河东灌区灌溉期月退水量预报模型。
Stepwise regression and error back propagation of artificial neural net work ( ANN-BP ) theory are first introduced to establish the month drainage water volume forecast model in the east irrigated area of Qingtongxia irrigation area .