| 气象因子变化对华北平原夏玉米产量的影响 |
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| 引用本文： | 孙宏勇,张喜英,陈素英,王彦梅,邵立威,高丽娜.气象因子变化对华北平原夏玉米产量的影响[J].中国农业气象,2009,30(2):215-218. |
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| 作者姓名： | 孙宏勇 张喜英 陈素英 王彦梅 邵立威 高丽娜 |
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| 作者单位： | 中国科学院遗传与发育生物学研究所农业资源研究中心,石家庄,050021 |
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| 基金项目： | 国家支撑计划，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 利用统计分析方法对中国科学院栾城农业生态试验站11a玉米产量数据和影响夏玉米气象产量变化的主要气象因子进行了分析。结果表明：该区域夏玉米生长期间的日照时数有明显的下降趋势，6、7、9月的日平均温度有逐渐升高的趋势，8月的日平均温度有降低的趋势；该区夏玉米产量的增加，气象因子占有比较重要的位置，占到31．45％；6月下旬的平均气温、8月下旬-9月上旬的日较温差、7月中旬和9月上旬的日照时数是影响夏玉米产量波动的关键气象因子。
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| 关 键 词： | 夏玉米 产量 气象因子 |
Effect of Meteorological Factors on Grain Yield of Summer Maize in the North China Plain |
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| SUN Hong-yong,ZHANG Xi-ying,CHEN Su-ying,WANG Yan-mei,SHAO Li-wei,GAO Li-na.Effect of Meteorological Factors on Grain Yield of Summer Maize in the North China Plain[J].Chinese Journal of Agrometeorology,2009,30(2):215-218. |
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| Authors: | SUN Hong-yong ZHANG Xi-ying CHEN Su-ying WANG Yan-mei SHAO Li-wei GAO Li-na |
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| Institution: | ( Center for Agricultural Resource Research, Institute of Genetic and Biological Development, Chinese Academy of Science, Shijiazhuang 050021 , China) |
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| Abstract: | It is very necessary to analyze the effect of meteorological factors on the grain yield for Summer Maize （Zea mays L. ） because the grain yield varied with the meteorological factors. So the 11-year field experiments were conducted in the Luancheng station to study the effect of meteorological factors on the grain yield. The regression methods were performed to analyze the change trend of meteorological factors and its impact on the grain yield. The results showed that the trend for average daily temperature in June, July and September was increasing and decreasing in August. As the sunshine hours, they were all significantly decreasing. The trend for grain yield for summer maize was increasing and the meteorological factor played a very important role which occupied 31.45 %. The average daily temperature in the last ten-day of June, and the difference between daily maximum temperature and minimum temperature from 20^th August to the 10^th September, and the sunshine hours in the middle 10 - day of July and in 10 - day of September affected the changes of summer maize grain yield. |
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| Keywords: | Summer maize Grain yield Meteorological factors |
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