| 近20年来陕西中部地区主要农作物生育期变化趋势分析 |
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| 引用本文： | 蒋冲,王飞,穆兴民,焦俏.近20年来陕西中部地区主要农作物生育期变化趋势分析[J].水土保持研究,2011,18(5):67-71,75. |
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| 作者姓名： | 蒋冲 王飞 穆兴民 焦俏 |
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| 作者单位： | 1. 西北农林科技大学资源环境学院,陕西杨凌,712100
2. 西北农林科技大学资源环境学院,陕西杨凌712100／中国科学院水利部水土保持研究所,陕西杨凌712100 |
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| 基金项目： | 中荷联合主题研究项目(中国科学院对外合作重点项目计划,GJHZ1018); Netherlands Organization for Scientific Research,NWO,OND1339291); 国家科技支撑计划项目(2006BAD09B00); 欧盟第六框架计划项目(EUFP6,37046) |
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| 摘 要： | 利用陕西省中部地区8个农业气象观测站1992-2010年冬小麦、夏玉米的生育期观测资料,分析了这两种作物主要生育期的变化趋势。结果表明：该地区冬小麦全生育期有不断缩短趋势,变化速率约为每10a缩短2.96d,各个站点变化趋势基本一致,但减少的速度不尽相同,其中凤翔站变化趋势较为显著（显著性达0.05水平）;冬小麦其它各生育阶段也都呈现出比较一致的变化趋势,其中播种-出苗、返青-拔节、拔节-抽穗、返青-成熟阶段呈缩短趋势,抽穗-乳熟、乳熟-成熟、播种-越冬阶段呈延长趋势,其余生育阶段变化趋势不明显。该地区夏玉米全生育期呈较一致的延长趋势（显著性超过0.05）,增加速率约为4.29d/10a,延长的时间主要在播种-三叶、七叶-拔节、乳熟-成熟阶段,其余生育阶段变化趋势不明显。
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| 关 键 词： | 冬小麦 夏玉米 生育期 趋势 陕西中部地区 |
Change in Growth Stages of Major Crops in the Last 20 Years in the Middle Region of Shaanxi Province |
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| JIANG Chong,WANG Fei,MU Xing-min,JIAO Qiao.Change in Growth Stages of Major Crops in the Last 20 Years in the Middle Region of Shaanxi Province[J].Research of Soil and Water Conservation,2011,18(5):67-71,75. |
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| Authors: | JIANG Chong WANG Fei MU Xing-min JIAO Qiao |
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| Institution: | JIANG Chong1,WANG Fei1,2,MU Xing-min1,JIAO Qiao1(1.College of Resources and Environment,Northwest A&F University,Yangling,Shaanxi 712100,China,2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,China) |
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| Abstract: | Based on the agricultural meteorological observation data of winter wheat and summer maize in the middle region of Shaanxi Province from 1992 to 2010,the growth stage changes of two major crops,winter wheat and summer maize,had been analyzed.The results showed that the entire growth period of winter wheat in this region reduced by 2.96 days per decade.The changing trends in most sites are very similar,but the rate is different.The periods from sowing to emergence,turning green to jointing,jointing to headin... |
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| Keywords: | winter wheat summer maize growth period trend middle region of Shaanxi Province |
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