| 夏玉米水分胁迫判别指标的研究 |
| |
| 引用本文： | 刘海隆,杨晓光. 夏玉米水分胁迫判别指标的研究[J]. 中国农业气象, 2002, 23(3): 22-26 |
| |
| 作者姓名： | 刘海隆 杨晓光 |
| |
| 作者单位： | 1. 重庆市气象局农业气象中心,重庆,400039
2. 中国农业大学农业气象系 |
| |
| 基金项目： | “八五”国家自然科学基金重大项目 (493916 0 0 )研究内容 |
| |
| 摘 要： | 通过定点实验，研究了夏玉米不同水分胁迫条件下叶水势、冠层温度的变化特征，结果表明，土壤水分胁迫使夏玉米的叶水势降低，冠层温度升高，冠气温差增大。通过与良好供水的田块对照表明，叶水势和冠层温度可以作为作物水分胁迫的判别指标。
|
| 关 键 词： | 夏玉米 水分胁迫 判别指标 叶水势 冠层温度 冠气温差 灌溉 |
| 文章编号： | 1000-6362(2002)03-0022-05 |
| 修稿时间： | 2001-05-28 |
A Study on Diagnostic Indexes of Soil Water Stress of Summer Maize |
| |
| LIU Hai-long ,YANG Xiao-guang. A Study on Diagnostic Indexes of Soil Water Stress of Summer Maize[J]. Chinese Journal of Agrometeorology, 2002, 23(3): 22-26 |
| |
| Authors: | LIU Hai-long YANG Xiao-guang |
| |
| Affiliation: | LIU Hai-long 1,YANG Xiao-guang 2 |
| |
| Abstract: | The field experiments on the characters of leaf water potential and canopy temperature of summer maize were conducted. Due to the soil water stress the leaf water potential decreased, the canopy temperature increased and the differences between canopy temperature and atmospheric temperature enlarged. Compared with the croplands, which were supplied with sufficient water, the leaf water potential and canopy temperature could be used as the diagnostic index for the soil water stress of summer maize. |
| |
| Keywords: | Leaf water potential Canopy temperature Difference between canopy temperature and atmospheric temperature Soil water stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
