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| 冬小麦生长期氮同位素组成对温度的响应 | |
| 引用本文： | 王周锋,刘卫国,邓西平.冬小麦生长期氮同位素组成对温度的响应[J].核农学报,2011,25(1):110-114. |
| 作者姓名： | 王周锋 刘卫国 邓西平 |
| 作者单位： | 1. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安,710075;长安大学环境科学与工程学院,陕西西安,710054 2. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安,710075 3. 中国科学院水土保持研究所,陕西杨凌,712100 |
| 基金项目： | 国家自然科学基金项目，中国科学院方向性项目，黄土与第四纪地质国家重点实验室开放基金 |
| 摘 要： | 研究了在田间持水量为70%～80%的水分控制条件下,黄土高原冬小麦(小偃6号)生长期氮同位素组成对温度变化的响应.结果表明:水分充足条件下,小麦生长期的温度变化范围为-2.2℃～21.7℃,植物氮同位素值的变化范围为-8.1‰～1.6‰,在整个生长期,小麦氮同位素值和温度的变化具有正相关关系,即温度较高时,小麦氮同位素... |
| 关 键 词： | 小麦 温度 氮同位素组成 生长期 |
NITROGEN ISOTOPIC COMPOSITIONS OF WINTER WHEAT AND ITS RESPONSE TO TEMPERATURE CHANGES |
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| WANG Zhou-feng,LIU Wei-guo,DENG Xi-ping.NITROGEN ISOTOPIC COMPOSITIONS OF WINTER WHEAT AND ITS RESPONSE TO TEMPERATURE CHANGES[J].Acta Agriculturae Nucleatae Sinica,2011,25(1):110-114. | |
| Authors: | WANG Zhou-feng LIU Wei-guo DENG Xi-ping |
| Institution: | State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, Shaanxi ； School of Environmental Science and Engineering Changan University, Xi’an, Shaanxi ； Institutes of Soil and Water Conservation, Chinese Academy of Sciences, Yang ling, Shaanxi |
| Abstract: | δ15N in winter wheat (Xiaoyan 6) in Loess Plateau response to temperature changes was studied under conditions of water controll. Results showed that under water -controlled conditions and varying temperature changes through whole growth periods in the Chinese Loess Plateau, δ15N values of wheat (from -8.1‰ to -1.6‰) were positively correlated with temperatures ranged from -2.2℃ to 21.7℃, which could be attributed to the shift of δ15N of soil source and wheat physiological changed by the temperature variation. |
| Keywords: | wheat temperature nitrogen isotopic composition lifecycle |
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