| 用伏秋季降水推定华北小麦底墒的方法 |
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| 引用本文： | 刘庚山,郭安红,任三学,安顺清,赵花荣.用伏秋季降水推定华北小麦底墒的方法[J].华北农学报,2003,18(2):95-98. |
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| 作者姓名： | 刘庚山 郭安红 任三学 安顺清 赵花荣 |
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| 作者单位： | 中国气象科学研究院农业气象和遥感应用研究中心,北京,100081 |
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| 基金项目： | 国家“十五”科技攻关项目 ( 2 0 0 1BA5 0 9B -15 )，农业科技成果转化资金项目 ( 0 2EFN2 1740 13 0 1) |
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| 摘 要： | 利用收集到的华北地区气象台站20多年的冬小麦底墒数据，以及相应年份7，8，9月间逐旬降水量的资料，对无灌溉情况下，冬小麦底墒与伏秋季降水的关系进行了分析，筛选出了简单易行的利用伏秋季各旬的降水量推定当年冬小麦底墒的方法，同时，统计检验和实际计算的结果表明：这种利用积分回归方法得到的积分回归方程能够反映出伏秋季逐旬降水量及其分布对该地区冬小麦底墒形成的影响。
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| 关 键 词： | 秋季 降水量 华北地区 小麦 底墒数据 计算 统计 积分回归方程 |
| 文章编号： | 1000-7091(2003)02-0095-04 |
| 修稿时间： | 2002年11月30 |
Preliminary Study on Forming Available Soil Water (ASW) Stored at Planting in North China by Rainfall During July to September |
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| LIU Geng shan,GUO An hong,REN San xue,A N Shun qing,ZHAO Hua rong.Preliminary Study on Forming Available Soil Water (ASW) Stored at Planting in North China by Rainfall During July to September[J].Acta Agriculturae Boreali-Sinica,2003,18(2):95-98. |
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| Authors: | LIU Geng shan GUO An hong REN San xue A N Shun qing ZHAO Hua rong |
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| Abstract: | In this paper, based on the data of available soil water (ASW) stored at plantin g in 0-50 cm soil layer for winter wheat and corresponding rainfall per 10 days period during July to September at some meteorological stations in Nor th China, we analyzed the relationship between the ASW stored at planting for wi nter wheat and rainfall under non irrigation.We worked out some integral regre ssion equations to forecast the ASW stored at planting for winter wheat. These e quations are also applied to demonstrate the impacts of precipitation per 10 da ys period during July to September and its temporal distribution on forming ASW stored at planting for winter wheat in a region. |
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| Keywords: | Available soil water (ASW) stored at planting Winter wh eat Forecast Integral regression |
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