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| 不同行距对冬小麦麦田蒸发、蒸散和产量的影响 | |
| 引用本文： | 孙宏勇,刘昌明,张喜英,陈素英,裴冬.不同行距对冬小麦麦田蒸发、蒸散和产量的影响[J].农业工程学报,2006,22(3):22-26. |
| 作者姓名： | 孙宏勇 刘昌明 张喜英 陈素英 裴冬 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101;中国科学院遗传与生物学发育研究所农业资源中心,石家庄,050021 2. 中国科学院地理科学与资源研究所,北京,100101 3. 中国科学院遗传与生物学发育研究所农业资源中心,石家庄,050021 |
| 摘 要： | 为了研究不同行距对冬小麦田棵间蒸发、蒸散和产量的影响，于2002～2003年在中国科学院栾城农业生态实验站进行了试验。结果表明：不同行距处理对棵间蒸发的影响在不同的冬小麦生育时期表现不同，在4月份呈现显著性差异，在12月-3月之间，处理之间没有明显差异，在其它时期7.5 cm的行距处理与30 cm行距的处理呈显著性差异，15cm的处理与它们均没有明显的差异；在整个生育期内，7.5 cm的行距处理比15 cm和30 cm的行距处理分别减少棵间蒸发13.26和29.04 mm，蒸散量减少22.76 mm和51.88 mm；7.5 cm的行距处理比15 cm和30 cm的行距处理分别提高产量水分利用效率0.11 kg/m3和0.23 kg/m3。 |
| 关 键 词： | 冬小麦 行距 蒸发 蒸散 产量 |
| 文章编号： | 1002-6819(2006)03-0022-05 |
| 收稿时间： | 6/6/2005 12:00:00 AM |
| 修稿时间： | 2005-07-18 |
Effects of different row spacings on soil evaporation, evapotranspiration and yield of winter wheat |
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| Sun Hongyong,Liu Changming,Zhang Xiying,Chen Suying and Pei Dong.Effects of different row spacings on soil evaporation, evapotranspiration and yield of winter wheat[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(3):22-26. | |
| Authors: | Sun Hongyong Liu Changming Zhang Xiying Chen Suying and Pei Dong |
| Institution: | 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; 2. Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China |
| Abstract: | In order to study the effects of different row spacings on soil evaporation, evapotranspiration (ET) and grain yield of winter wheat, a field experiment was conducted on Luancheng Agro-ecology Station of Chinese Academy of Sciences between 2002 and 2003. The results showed soil evaporation and ET increased when row spacing became wider and WUE decreased. The significant effects of row spacings on soil evaporation occurred in April at p=0.05, the effects were not differenct from December to March and 7.5 cm row spacing and 30 cm row spacing showed difference at other growing stages. Soil evaporations measured under 7.5 cm row spacing decreased 13.26 mm and 29.04 mm, ET decreased 22.76 mm and 51.88 mm, and Water Use Efficiency (WUE) increased 0.11 kg/m3 and 0.23 kg/m3 than that of 15 cm and 30 cm row spacing, respectively. |
| Keywords: | winter wheat different row spacings evaporation evapota nspiration yield |
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