| SVM和ANN方法在铜川盛夏暴雨预报中的对比试验 |
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| 引用本文： | 燕东渭,杨艳,孙田文,刘志镜.SVM和ANN方法在铜川盛夏暴雨预报中的对比试验[J].山西气象,2006(3):15-17. |
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| 作者姓名： | 燕东渭 杨艳 孙田文 刘志镜 |
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| 作者单位： | 山西省卫星遥感减灾服务中心 山西太原030002 |
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| 摘 要： | 分析了运城市1964年～2003年自然降水的变化趋势和季节分布特征,发现年降水量以14m m/10a速率快速递减,春、夏、秋季的降水处于减少的趋势中,冬季没有明显的变化趋势。年降水的不断减少及其在不同季节的分布特征对该市冬小麦生产十分不利。
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| 关 键 词： | 降水量 冬小麦 生产 |
| 文章编号： | 1004-5732（2006）03-0015-03 |
| 收稿时间： | 2004-12-21 |
| 修稿时间： | 2004-12-21 |
The Influence of Precipitation on the Wheat Production during the Period from 1964 to 2003 in Yucheng City |
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| Liu Wenping,Wang Zhiwei.The Influence of Precipitation on the Wheat Production during the Period from 1964 to 2003 in Yucheng City[J].Shanxi Meteorological Quarterly,2006(3):15-17. |
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| Authors: | Liu Wenping Wang Zhiwei |
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| Institution: | Shanxi Satellite Remote Sensing and Disaster prevention Center, Taiyuan Shanxi, 030002 |
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| Abstract: | The trend and seasonal distribution of precipitation during the period from 1964 to 2003 are analyzed. The results show that the precipitation decreases at the rate of 14mm/10a. Seasonally, it decreases in spring, summer and autumn however the trend is not very obvious in winter. The annual negative trend and distribution of different seasons are quite disbennifit to the winter wheat product. |
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| Keywords: | precipitation winter wheat production |
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