| 京郊不同生态区玉米雨养旱作生产降雨保证率分析 |
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| 引用本文： | 宋慧欣,叶彩华,王克武,郎书文. 京郊不同生态区玉米雨养旱作生产降雨保证率分析[J]. 作物杂志, 2010, 0(1) |
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| 作者姓名： | 宋慧欣 叶彩华 王克武 郎书文 |
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| 作者单位： | 1. 北京市农业技术推广站,100029,北京
2. 北京市气候中心,100081,北京 |
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| 摘 要： | 通过分析北京不同生态区50年间降水年型的分布及玉米生长发育不同时期的降水量与耗水量,解析京郊玉米雨养旱作生产的降水保证率,测查北部山区和平原地区选用的不同熟期玉米品种在各时期需水与供水盈亏差额,确定两个生态区现行雨养玉米生产降水亏缺期,为制定玉米生产抗旱应急预案提供参考。
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| 关 键 词： | 玉米 雨养 降雨量 保证率 |
Analysis on Guarantee Rate of Rainfall for Rainfed Maize in Different Ecological Regions of Beijing |
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| Song Huixin,Ye Caihua,Wang Kewu,Lang Shuwen. Analysis on Guarantee Rate of Rainfall for Rainfed Maize in Different Ecological Regions of Beijing[J]. Crops, 2010, 0(1) |
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| Authors: | Song Huixin Ye Caihua Wang Kewu Lang Shuwen |
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| Affiliation: | Song Huixin1,Ye Caihua2,Wang Kewu1,Lang Shuwen1(1Beijing Agricultural Technology Extension Station,Beijing 100029,2Beijing Climate Center,Beijing 100081,China) |
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| Abstract: | The distributions of rainfall from the last 50 years and the characters of both present and consumed rainfall within different maize growth phases in Beijing area was analyzed in this paper to reveal the guarantee rates of rainfall for rainfed maize production,to find out the gaps between actual and needed rainfall at different growth stages,and to determine the water deficit periods for rianfed maize production in different ecological regions of Beijing. |
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| Keywords: | Maize Rainfed Rainfall Guarantee rate |
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