| 我国西北冬小麦生长发育对气候变化响应分析 |
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| 引用本文： | 杜莉,李燕,王志伟.我国西北冬小麦生长发育对气候变化响应分析[J].山西农业科学,2011,39(8):872-876. |
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| 作者姓名： | 杜莉 李燕 王志伟 |
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| 作者单位： | 1. 重庆市气象局气象服务中心,重庆,401147
2. 山西省气候中心,山西太原,030006 |
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| 基金项目： | 科技部科研院所社会公益研究专题(2005DIB3J100); 山西省科技攻关项目(2007031106-1) |
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| 摘 要： | 西北地区为我国气候变暖较明显区域之一,为明确主要农作物冬小麦对气候变暖的响应程度,选取我国西北地区农业气象观测站冬小麦的发育期资料,运用线性统计方法分析其20多a来冬小麦的生长发育变化特征,研究西北地区主要农作物的生长发育对气候变暖的响应程度。结果表明:(1)西北大部分地区冬小麦的播种日期推迟。(2)冬小麦的返青期受局地小气候及干旱等气候条件影响,大部分呈推迟趋势。(3)所选区域冬小麦均一致性地表现为成熟期提前。(4)西北地区大部分冬小麦返青—成熟期间的天数在缩短,仅甘肃庆阳和新疆莎车冬小麦返青—成熟期间的天数在延长,且延长趋势不显著。
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| 关 键 词： | 气候变暖 冬小麦 生长发育期 返青期 成熟期 |
Analysis on Response of the Winter Wheat Growth to Global Climate Change in Northwest China |
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| DU Li,LI Yah,WANG Zhi-wei.Analysis on Response of the Winter Wheat Growth to Global Climate Change in Northwest China[J].Journal of Shanxi Agricultural Sciences,2011,39(8):872-876. |
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| Authors: | DU Li LI Yah WANG Zhi-wei |
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| Institution: | DU Li1,LI Yan2,WANG Zhi-wei2(1.Centre of Meterology Service,Chongqing Meteorologic Bureau,Chongqing 401147,China,2.Meteorological Center in Shanxi Province,Taiyuan 030006,China) |
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| Abstract: | Northwest China is one of the most obvious climate warming areas.To study on response of winter wheat as the main crops to global climate change in Northwest China,the data of winter wheat growth and development period were applied to analyze the variation tendencies of the winter wheat growth period in recent 20 years by linear trend analysis.The result shows:(1)The sowing date of the winter wheat had delayed in most parts of Northwest China.(2)The regreenig stage of the winter wheat had delayed in most pa... |
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| Keywords: | climate warming winter wheat growth period regreening stage maturity |
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