| 冬小麦田间墒情预报的BP神经网络模型 |
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| 引用本文： | 尚松浩,毛晓敏,雷志栋,杨诗秀. 冬小麦田间墒情预报的BP神经网络模型[J]. 水利学报, 2002, 33(4): 0060-0063 |
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| 作者姓名： | 尚松浩 毛晓敏 雷志栋 杨诗秀 |
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| 作者单位： | 清华大学,水利水电工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 983932 0 ) |
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| 摘 要： | 土壤墒情预报是农田适时适量灌水的基础。田间土壤水分的变化受到外界气象因素及土壤特性、作物长势等的影响，关系比较复杂。本文利用北京市永乐店试验站冬小麦返青后的土壤水分试验资料，建立了土壤墒情预报的BP网络模型，模型中同时考虑了多个因素对土壤贮水量的影响。利用部分实测资料对网络进行训练，然后对2年不同灌水处理下的土壤贮水量进行预测，取得了较好的效果，表明BP神经网络用于墒情预报是可行的。
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| 关 键 词： | 冬小麦 土壤贮水量 墒情预报 BP神经网络 |
| 文章编号： | 0559-9350(2002)04-0060-05 |
Back-propagation neural network model for soil moisture forecast of winter wheat field |
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| SHANG Song-hao,MAO Xiao-min,LEI Zhi-dong,YANG Shi-xiu. Back-propagation neural network model for soil moisture forecast of winter wheat field[J]. Journal of Hydraulic Engineering, 2002, 33(4): 0060-0063 |
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| Authors: | SHANG Song-hao MAO Xiao-min LEI Zhi-dong YANG Shi-xiu |
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| Affiliation: | Tsinghua University |
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| Abstract: | Based on the field soil moisture observation data for winter wheat in Yongledian Experimental Station,Beijing,during growing period,a back-propagation(BP) network model for soil moisture forecast is established.The model takes main factors influencing soil moisture regime into account.The network is trained by part of observation data before the application to forecast of soil moisture with different irrigation treatment in two years.The predicted soil moisture fairly well agrees with the observation data. |
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| Keywords: | winter wheat soil water storage soil moisture forecast back-propagation neural network |
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