| 1960～2009年新民市无霜期变化对农业生产的影响 |
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| 引用本文： | 于万军,曹东辉,高淑新.1960～2009年新民市无霜期变化对农业生产的影响[J].安徽农业科学,2010,38(22):11929-11930,11932. |
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| 作者姓名： | 于万军 曹东辉 高淑新 |
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| 作者单位： | 辽宁省新民市气象局,辽宁新民,110300 |
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| 摘 要： | 分析掌握1960～2009年新民市霜期变化规律,调整农业布局改革旧的耕作制度,充分利用气候资源增加农业经济收益。在Excel程序支持下,采用线性函数分析霜期趋势变化。结果表明,新民市终霜日期趋势提前21d;初霜日期趋势推后10d;无霜期趋势延长32d。在近30年里,霜灾情下降为0。无霜期延长热量资源增加。在无霜期稳定延长的情况下,可适当考虑增加复种指数改变以往的耕作模式,引进生育期较长的作物,使热量资源得到充分发挥,创造经济效益。
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| 关 键 词： | 无霜期 趋势变化 农业 影响 新民市 |
Effects of Frost-free Date Change on the Agricultural Production in Xinmin City from 1960 to 2009 |
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| YU Wan-jun et al.Effects of Frost-free Date Change on the Agricultural Production in Xinmin City from 1960 to 2009[J].Journal of Anhui Agricultural Sciences,2010,38(22):11929-11930,11932. |
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| Authors: | YU Wan-jun |
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| Institution: | YU Wan-jun et al (Xinmin Meteorological Bureau of Liaoning Province,Xinmin,Liaoning 110300) |
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| Abstract: | The variation laws of frost stage in Xinmin City from 1960 to 2009 were analyzed.The agricultural layout was adjusted and the old farming system was reformed.The climate resources were made full use to increase agricultural economic benefits.Under the support of Excel program,a linear function was used to analyze the trend changes of frost stage.The results showed that the last frost date trends in Xinmin advanced 21 d.The first frost date trends postponed 10 d.The frost-free period trend prolonged 32 d.Fro... |
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| Keywords: | Frost-free period Change in trend Agriculture Effect Xinmin City |
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