| 近49年辽阳市玉米生长季气候变化特征及其对产量的影响 |
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| 引用本文： | 张梅,安娟,陈玉光,徐婷.近49年辽阳市玉米生长季气候变化特征及其对产量的影响[J].安徽农业科学,2011(17):10439-10441. |
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| 作者姓名： | 张梅 安娟 陈玉光 徐婷 |
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| 作者单位： | 辽宁省辽阳市气象局; |
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| 摘 要： | 目的]分析近49年辽宁省玉米生长季气候变化特征及其对产量的影响。方法]利用线性趋势模拟、滑动平均等方法，将标准化后的1961～2009年辽阳市玉米播种期、营养生长期及生殖生长期气温、降水、日照等气象资料和玉米单产资料进行对比分析。结果]近49年玉米生长季各个时期平均气温均呈上升趋势，营养生长和生殖生长期增温明显；降水在播种期变化不大，在营养生长和生殖生长期呈减少趋势；日照在整个生长季均呈减少趋势。无论在哪个生长时期，气温的升高对玉米产量的增加都起到了一定的促进作用；降水和日照的减少是造成近4年玉米小幅减产或增产缓慢的原因。结论]该研究为政府和农业部门领导科学安排指挥农业生产，充分利用温、光、水资源及准确预报玉米产量提供参考依据。
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| 关 键 词： | 气温 降水 日照 玉米产量 线性趋势 滑动平均 |
Characteristics of Climate Change during Maize Growing Period and Its Impacts on the Output in Liaoyang City in Recent 49 Years |
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| ZHANG Mei et al.Characteristics of Climate Change during Maize Growing Period and Its Impacts on the Output in Liaoyang City in Recent 49 Years[J].Journal of Anhui Agricultural Sciences,2011(17):10439-10441. |
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| Authors: | ZHANG Mei |
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| Institution: | ZHANG Mei et al(Liaoyang Meteorological Office,Liaoyang,Liaoning 111000) |
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| Abstract: | Objective] Characteristics of climate change during maize growing period and its impacts on the output in Liaoyang City in recent 49 years were analyzed.Method] Air temperature,precipitation,sunshine,etc.of maize sowing time,vegetative stage and reproductive stage in Liaoyang during 1961-2009 were standardized,and these meteorological data after standardizing and maize yield data were compared and analyzed by using liner trend imitate,moving average,etc..Result] The average temperature of each period of ... |
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| Keywords: | Air temperature Precipitation Sunlight Maize yield Linear trend Moving average |
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